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What is Solar Tubular battery

What is a Solar Tubular battery? Is it a battery made for Solar purposes? We will discuss this topic in this article. A solar tubular battery is a lead-acid battery specifically designed with a C10 rating. It has more capacity than a C20 battery, which is generally used for the Inverter/UPS application. It is characterized by its tubular-shaped cells, which comprise a series of lead plates separated by separators and immersed in an electrolyte solution.https://suvastika.com/difference-between-c20-and-c10-tubular-battery/

Solar tubular batteries were launched by making them C10 battery, which means it has more capacity than C20 battery, which is not very helpful in a solar battery. Most people were told that Solar batteries could take more charging current as it’s a C10 battery, and the dealers and resellers believed the same theory. The Solar battery is no different from the ordinary Tubular battery except it has a little more capacity, so if we take the example of a 150 Ah tubular battery, the solar battery with a C10 rating will have 170 Ah capacity. So in technical terms, there is hardly any difference as it will give slightly more backup.https://medium.com/@alphazee17/what-is-the-difference-between-a-solar-battery-and-a-tubular-battery-872140135ec4

In India, companies started making Solar PCU with higher capacity solar charge controllers like 40Amp and 50 Amps and 60 Amps so that users can install more solar panels with a smaller battery bank. Solar charge controllers of such high capacity in the Solar PCU are a very dangerous trend as these charge controllers are destroying the life of batteries, and many battery blasts are taking place because the batteries are charged at a very high rate of charge. The Tubular Lead Acid battery will be charged at 10% of its capacity, so a 150 Ah Tubular battery can be charged only with a 15 Amps charging current. Still, nowadays, most branded companies are making solar PCUs with charging currents of 50 and 60 Amps which are becoming the cause of battery explosions. The battery needs water topping every month as the heat is created inside the battery when the battery is charged with such a high current.

solar panels

solar panels

On the other hand, companies are telling the customer that the Solar charge current is shared between the load and the battery charging. This is another lie the companies are making fools of people when the grid is available. There can’t be any charge sharing between the Load and battery charging. It can only happen when the grid is not available.

In the Solar PCU, which are made in India, they keep charging the battery through the Solar Charge controller, and when the battery is fully charged than they cut the gid power and run the load, which is a very old technology adopted by the manufacturers and the battery life is restricted as the battery is charged and then discharged in each cycle. So Tubular battery, which can last for 500 to 600 cycles if charged properly, cannot perform in the Solar PCU system. There are a lot of complaints within two years of functioning, and the culprit is Solar PCU designed for higher charging current to install more panels. Generally, the dealer tells the customer to install 1000-watt solar panels with a 2 KW solar PCU with two Tubular batteries, so 2KW has a 24 V battery system. In this system, the batteries are charged with almost a 40 Amp charging current, creating many problems for the user. Also, people who install the Solar PCU complain their electricity bill has increased rather than reduced as people installing the solar PCU think that their electricity bill will reduce after installing the solar system. Still, the Solar PCU increases the electricity bill rather than reducing it.

Solar PCU is successful with tubular batteries as an off-grid system with no grid available, or a grid is available for much less time, so in that case, the solar is properly utilized.

In the areas where the Grid is available, and power cuts are not for a longer period, the solar PCU is a failure concept as it increases the power bill and reduces the Tubular battery life.

Now the real solution is a Lithium battery for the solar PCU systems as this can charge the battery faster as Lithium has the C/2 charging capacity, or we can charge the lithium battery at 50% of its rating in comparison to 10% of its capacity in case of Tubular Lead Acid batteries. The life span of Lithium compare to the Tubular battery is also four times, so this is the ideal solution to install with the Solar PCU.https://suvastika.com/tubular-battery-is-c20-and-c10-and-lithium-battery-is-c1-capacity/

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Benefits of Solar PCU with Lithium battery

A solar PCU (Power Conditioning Unit) is a device that converts solar energy into usable electricity. It can be used to power your home or business or to provide backup power during outages. A lithium battery is a type of battery that is known for its long lifespan, high efficiency, and low maintenance requirements.https://www.solarsquare.in/blog/solar-pcu/

Here are some of the benefits of using a solar PCU with a lithium battery:

Uninterrupted power supply: During a power outage, the solar PCU will switch to battery power, ensuring a continuous electricity supply. This is especially important for critical appliances and systems, such as refrigerators, medical devices, and sump pumps.

Energy savings: A solar PCU can help you save money on electricity bills by using solar energy to power your home or business. Lithium batteries are also more efficient than lead-acid batteries, which can further reduce your energy costs.

Long lifespan: Lithium batteries have a lifespan of up to 10 years, much longer than lead-acid batteries. This means you will have to replace your batteries less often, saving you money in the long run.

Low maintenance: Lithium batteries require very little maintenance, which makes them a more convenient option than lead-acid batteries. You do not need to add water to them, and they are less susceptible to sulfation.

Environmentally friendly: Lithium batteries are more environmentally friendly than lead-acid batteries. They do not contain lead, which is a toxic heavy metal.

Overall, a solar PCU with a lithium battery is a good choice for homeowners and businesses who want to save money on their electricity bills, have a reliable backup power source, and reduce their environmental impact.

Here are some additional benefits of using a solar PCU with a lithium battery:

The Bluetooth and Wi-Fi feature is added and can monitor the solar PCU.https://suvastika.com/benefits-of-bluetooth-hybrid-solar-pcu/

The lithium battery can be charged more quickly than a lead-acid battery, so you can get back up and running after a power outage more quickly.

Lithium batteries are more resistant to extreme temperatures, which makes them a good choice for areas with hot or cold climates.

Lithium batteries are lighter and more compact than lead-acid batteries, which makes them easier to install and maintain.

If you are considering installing a solar system, I recommend talking to a solar installer about the benefits of using a solar PCU with a lithium battery.

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What is Tubular Battery

12V Inverter with 150Ah Tubular Battery

A tubular battery is a lead-acid battery that uses tubular-positive plates. The positive plates are made of lead dioxide and are enclosed in a tubular separator. The negative plates are made of lead and are located between the positive plates in the electrolyte. These batteries are also called Deep Cycle batteries, which can be used in power backup applications like Inverter/UPS and Solar backup applications. https://en.wikipedia.org/wiki/Deep-cycle_battery

A Tubular battery uses High-pressure casted spines to reduce grid corrosion.

A tubular battery uses High-density active material to improve performance under deep discharge conditions.

In Tubular lead Acid batteries, Special additives chemicals are added to enhance the recovery from deep discharge.

Use a special Polyethylene separator to reduce water loss & stratification and increase puncture resistance.

For the life of Tubular lead Acid battery charging technique is very important.https://suvastika.com/how-to-charge-tubular-battery-in-inverter-ups/

Tubular batteries are typically used in applications where high discharge rates and long lifetimes are required, such as in electric vehicles, solar power systems, and UPS systems. They offer several advantages over other types of lead-acid batteries, including:

  • Longer lifespan: Tubular batteries can last up to twice as long as flat-plate lead-acid and VRLA batteries.https://suvastika.com/what-is-c-rating-in-the-battery-means-for-home-inverter-ups/
  • Higher discharge rates: Tubular batteries can be discharged at higher rates without damage as the tubular battery has a strong plate construction called tubular plates.
  • Better performance in extreme temperatures: Tubular batteries can perform well in hot and cold temperatures compared to other types of lead Acid batteries.
  • Less maintenance: Tubular batteries require less maintenance than flat-plate lead-acid or other lead-acid batteries.

The cost of a tubular battery varies depending on the size and capacity, but they typically cost more than flat-plate lead-acid batteries.

Here are some of the common uses of tubular batteries:

  • Electric vehicles: Tubular batteries are used in the propulsion systems of electric vehicles. They can provide these vehicles with high discharge rates and long lifetimes.
  • Solar power systems: Tubular batteries are used in solar power systems to store the energy generated by solar panels. They can provide backup power during power outages and can also be used to smooth out the output of the solar panels.
  • UPS/Inverter systems: Tubular batteries are used in Inverter/UPS systems to provide backup power during power outages. They can also protect sensitive electronic equipment from power surges and spikes.

A tubular battery is a good option if you want a long lifespan, high discharge rates, and good performance in extreme temperatures. However, they are more expensive than flat-plate lead-acid batteries.

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Is lithium battery good for Inverter/UPS

Pure Sine Wave UPS 24V VS Lithium Inbuilt ESS 900-2500

Lithium inverters are a type of inverter that uses lithium-ion batteries as its power source. The Lithium battery is a C1 battery compared to the Tubular Lead Acid battery, which is a C20 battery which is made for smaller loads back up. The concept of C20 and C1 is the major difference to understand before buying a battery for inverter/UPS, as the C20 battery can draw smaller wattage for running smaller loads, and the C1 battery is meant for running higher loads.https://suvastika.com/tubular-battery-is-c20-and-c10-and-lithium-battery-is-c1-capacity/

The Lithium based Inverter/UPS is called a battery Energy Storage system which is specially made for lithium batteries only and comes with inbuilt and external Lithium battery configurations.

ESS

ESS with Lithium battery

They offer many benefits over traditional inverters that use lead-acid batteries, including:

  • Longer battery life: Lithium-ion batteries have a much longer lifespan than lead-acid batteries, typically lasting 2,000 to 3,000 cycles. This means you can expect your lithium inverter to last 10 to 12 years without replacing the battery. At the same time, the tubular lead Acid battery needs to change every 2 to 3 years.
  • Faster charging: Lithium-ion batteries can be charged much faster than lead-acid batteries. This is important if you need to restore power after a power outage quickly. The Tubular batteries take at least 15 hours to charge, and the Lithium battery can be charged in 2 hours maximum.
  • Lighter weight and smaller size: Lithium-ion batteries are much lighter and smaller than lead-acid batteries. This makes them easier to transport and install.
  • Lithium-ion batteries are more efficient than lead-acid batteries, which waste less energy during charging and discharging. This can lead to lower operating costs.
  • Safer: Lithium-ion batteries are less likely to catch fire or explode than lead-acid batteries. Lead Acid batteries are prone to accidents as the charging creates gasses inside the battery, and if vents or maintenance of lead acid is not done properly, they can explode and create a lot of panic. This makes them a safer choice for applications where safety is important.https://suvastika.com/how-to-safeguard-against-the-explosions-of-tubular-or-smf-batteries/#:~:text=Inverters%20with%20tubular%20batteries%20can,than%20the%20battery%20can%20take.

Overall, lithium inverters offer many advantages over traditional inverters. A lithium inverter/UPS is a good option if you want an inverter with a long lifespan, fast charging, and lightweight design.https://suvastika.com/difference-between-tubular-and-lithium-battery/

Here are some additional benefits of lithium inverters:

  • Reduced maintenance: Lithium-ion batteries require very little maintenance, unlike lead-acid batteries, which must be regularly checked and topped up with water. Tubular battery needs regular water topping, and the biggest challenge is getting distilled water from the market to refill the battery.
  • After the water is filled in, the battery spillage on the Acid battery floor is another challenge that most users face, and the floor is permanently spoiled.
  • Environmentally friendly: Lithium-ion batteries are more environmentally friendly than lead-acid batteries, as they do not contain lead or other harmful chemicals. But Tubular lead batteries emit lead fumes that harm kids and older people.
  • Wide temperature range: Lithium-ion batteries can operate in a wider temperature range than lead-acid batteries, making them a good choice for applications in extreme climates. At the same time, the Tubular battery needs an ATC(Automatic Temperature Compensation) feature in the Inverter/UPS to run them properly in extremely cold or hot temperatures.https://suvastika.com/maximize-battery-life-in-ups-inverter-by-having-atc-feature-for-charging-lead-acid-batteries/

If you are considering purchasing a lithium inverter, there are a few things you should keep in mind:

  • The cost of lithium inverters is typically higher than traditional inverters. However, the higher upfront cost can be offset by the lower operating costs and longer lifespan of lithium-ion batteries. As the Lithium battery is a C1 battery and the Tubular battery is a C20 battery, you need to use a lower capacity battery than the Tubular battery, which is also a strong factor and saves the cost. So Lithium is cheaper than a Tubular lead Acid battery if you want to run higher loads.
  • The size and weight of lithium inverters can vary depending on the battery’s capacity. Make sure to choose an inverter that is the right size for your needs.
  • Lithium inverters/UPS require a different charging algorithm than Lead Acid batteries, so you need to buy the Inverter/UPS, which has the feature or option of lithium battery charging.

Overall, lithium inverters/UPS  offer many advantages over traditional inverters. A lithium inverter/UPS is a good option if you want an inverter with a long lifespan, fast charging, and lightweight design.

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Importance of BMS in Tubular battery

The importance of BMS in Tubular battery needs to understand in this blog. When the user uses two or more tubular Lead Acid batteries in an Inverter/UPS of high Ah value, like 100 Ah and above, then after six months to 1 year, the imbalance between these two batteries starts building up. As the Inverter/UPS tries to charge the 24 V system to 28.8 Volts, one of the batteries will be imbalanced. The total of 28.8Volt will remain the same, and the individual battery may reach 15.4 Volts. Other batteries might remain at 13.4, resulting in an overcharge of the battery, which has touched 15.4 volts, as the Inverter/UPS cant differentiate the individual battery voltage while charging and discharging the batteries. The Battery Management System can correct this Tubular Lead Acid batteries imbalance. A battery management system (BMS) is critical to any Tubular lead-acid battery bank. It monitors and controls the battery’s performance, ensuring it operates within safe limits and delivers optimal performance.https://suvastika.com/what-is-battery-management-system-bms/

The main functions of a BMS for lead-acid batteries include:

  • Overcharging and over-discharging protection: This is the most important function of a BMS. Overcharging can damage the battery and shorten its lifespan, while over-discharging can lead to sulfation, shortening the lifespan. The BMS monitors the battery’s voltage and current and prevents it from being overcharged or over-discharged.
  • Cell balancing: Tubular Lead-acid batteries are imperfect, and each battery in a battery bank will have a slightly different voltage. This can lead to uneven discharge and premature ageing of the battery. The BMS balances each battery by equalizing the voltage between them.
  • Temperature monitoring: The temperature of a battery can affect its performance and lifespan. The BMS monitors the battery’s temperature and takes steps to prevent it from overheating, such as reducing the charging current.
  • Fault detection: The BMS monitors the battery for faults, such as short circuits, open circuits, and battery imbalance. The BMS will shut down the battery if a fault is detected to prevent further damage.

A BMS is an essential component of any lead-acid battery bank. It helps to ensure the battery’s safety, performance, and lifespan.https://en.wikipedia.org/wiki/Battery_management_system

Here are some additional benefits of using a BMS for Tubular lead-acid batteries:

  • Improved battery life: A BMS can help to extend the lifespan of a lead-acid battery by preventing overcharging and over-discharging, as well as by balancing the individual battery.
  • Increased safety: A BMS can help to prevent fires and explosions by preventing the battery from overheating or being overcharged.
  • Improved performance: A BMS can help improve a lead-acid battery’s performance by ensuring it operates within its safe operating limits.
  • Reduced maintenance: A BMS can help to reduce the need for maintenance by monitoring the battery and alerting the user to any problems.

If you are using a Tubular lead-acid battery bank, it is important to use a BMS. A BMS can help ensure your battery’s safety, performance, and lifespan. The importance of BMS in Tubular battery is very important to understand.

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Top 5 Inverter industry Leader in India.

  1. Luminous Power Technologies : Luminous is the largest inverter manufacturer in India. It offers a wide range of inverters for residential, commercial, and industrial use. The company has a strong brand presence and is known for its reliable products and customer service.
  2. V-Guard Industries : V-Guard is another major player in the Indian inverter market. It offers a variety of inverters at different price points. The company is known for its innovative products and its focus on customer satisfaction.
  3. Microtek International : Microtek is a leading manufacturer of inverters, UPS, and other power backup solutions. The company offers a wide range of products for both residential and commercial use. Microtek is known for its high-quality products and its commitment to customer service.
  4. Su-vatika Systems Pvt. Ltd : Su-vastika is a well-known brand in the Indian inverter market. It offers a variety of inverters for different applications. Su-vastika is known for its affordable products and its wide dealer network. Su-vastika is a brand promoted by Mr Kunwer Sachdev Founder Su-kam and focussing on Lithium Inverter technology and they have launched a complete new range in the market. Su-vastika’s lift Inverters and Battery Energy Storage Systems are creating waves in the indian and International market.
  5. Exide Industries : Exide is a leading manufacturer of batteries in India. It also manufactures inverters under the brand name Exide Home. Exide inverters are known for their durability and reliability.

These are just a few of the many inverter manufacturers in India. The best inverter for you will depend on your specific needs and budget. It is important to do your research and compare different brands before making a purchase.

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What is Battery Management System (BMS)

Lithium battery bank with BMS

BMS stands for Battery Management System. It is an electronic system that manages a rechargeable battery. https://en.wikipedia.org/wiki/Battery_management_systemA BMS is typically required to control the batteries installed in series in a battery bank. This is required for Lead Acid batteries, Lithium batteries of all types and generally, the battery bank made of several cells in a series requires the BMS, As the cells installed in series or parallel in a battery bank need to have similar voltages when charged and discharged if the cell voltage varies beyond a certain limit than the one or two cells get over charged or under charged which creates an imbalance in the battery bank. If these cells are not balanced in time, then these cells will make the battery unusable. And its main advantages are:

  • Monitor the battery’s state of charge (SOC), voltage, current, temperature, and other parameters.
  • Protect the battery from operating outside its safe operating area.
  • Balance the cells in the battery pack to ensure they all have the same voltage.
  • Optimize the battery’s performance.
  • If that feature is activated, report the battery’s status to an external device.
  • The BMS is required for most battery types if the cells are in series in a battery bank.

Lithium battery bank

Lithium battery bank

There are two main types of BMSs: centralized and distributed. A centralized BMS uses one control unit to manage all of the battery cells in the system. A distributed BMS uses multiple control units to manage the battery cells in the system.

BMSs are used in a variety of applications, including:

  • Electric vehicles
  • Hybrid electric vehicles
  • Solar power systems
  • Uninterruptible power supplies (UPSs)/Inverters
  • Portable devices
  • Industrial machinery

BMSs ensure rechargeable batteries’ safety, reliability, and performance.

Here are some of the benefits of using a BMS:

  • Improved battery safety: A BMS can prevent the battery from overcharging, over-discharging, overheating, and other conditions that can damage the battery.
  • Extended battery life: A BMS can help extend the battery’s lifespan by preventing it from operating outside its safe area.
  • Improved battery performance: A BMS can optimize the battery’s performance by balancing the cells and managing the battery’s temperature.https://suvastika.com/battery-management-system-bms-for-lead-acid-battery/
  • Reduced maintenance costs: A BMS can help to reduce maintenance costs by preventing battery failures.
  • Increased uptime: A BMS can help increase uptime by preventing battery failures and ensuring that the battery always operates optimally.

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Sizing of the battery and Solar charge controller

Solar Panel Configuration for 24V Solar Hybrid PCU

The sizing of the Solar charge controller according to the battery sizing is very important to understand so that we don’t design a system that can be harmful to the batteries or can explode, especially Lead Acid batteries. A solar charge controller is a device that regulates the flow of electricity from solar panels to batteries.https://www.sciencedirect.com/topics/engineering/charge-controller It prevents the batteries from being overcharged or undercharged, which can damage them. Solar charge controllers are sized based on the following factors:

  • Solar array output: The solar array output is the total power the solar panels can produce. This is typically measured in watts.
  • Battery bank voltage: The battery bank voltage is the voltage of the batteries the solar charge controller will use. This is typically 12, 24, or 48 volts or a multiple of 12 Volts in the case of lead Acid batteries.https://suvastika.com/how-to-match-the-solar-panel-voltages-and-battery-voltage-in-solar-hybrid-pcu/
  • Battery bank capacity: The battery bank capacity is the amount of energy the batteries can store. This is typically measured in amp-hours. So, generally speaking, the Tubular lead Acid battery needs to be charged by 10% of its rated capacity. So, for example, if we use a 150 Ah Tubular battery, we can give 15 Amps of charging to charge the tubular battery. So if we are installing a single 150 Ah Tubular battery in a Solar System, we should ensure that we don’t charge this battery beyond 20 Amps charging current; otherwise, the Tubular battery may be bulged initially and might explode if we try to charge with 40 or 50 Amps charging current.

Solar System with battery and Solar Panels

Solar System with battery and Solar Panels

For example, if you have a solar array with 1000 watts of output and a 24-volt battery bank, you will need a solar charge controller with a minimum amperage rating of 1000 / 24. It will be 41 Amps charging current; theoretically, we get it from the solar panels. So if there is a tubular battery, the charge controller will Charge the battery depending upon the PWM or MPPT charge controller. The PWM will give approximately 30 Amps of charging from the 1000 Watt Solar panels, and MPPT will give approximately 38 to 39 Amp Charging current as the 100% of the Solar panels’ output is impossible to get. There will be a loss in wires, and the maximum solar peak power will be for 3 to 4 hours. As cleaning the solar panels in most areas is impossible, a loss will also be added to that account. The Tubular lead Acid batteries need to be charged in 10 hours, but what will be the result if we charge them faster? As we see in most of the recent installations done in India and Africa and other such countries where the Solar PCU IS USED TO INSTALL HYBRID SOLAR OFF-GRID SYSTEMS, THE MANUFACTURER is giving HIGH AMPERE CHARGE CONTROLLERS IN SIDE THE PCU to give the option of installing higher capacity of Solar panels to destroy the battery life. Battery explosion incidents are happening in Tubular Lead Acid batteries. Then a few of the manufacturers are trying to convince that their PCU does the Load Sharing when the grid is available so that the solar will share the Load between the battery and Load, which is a false propaganda by the manufacturers. No one is checking that in the Solar PCU, the power from the solar panels can only charge the battery and can’t run the Load when the grid power is available. In most if the Solar PCUs available in the market the solar panel charges the Tubular battery to 100% And than the PCU switches on the Inverter mode and start giving power to tge load even when the Grid is available and that time load is shared between solar panel and battery. So one should consider the Charge controller and solar panels rating before installing the panels. Having more panels with a smaller battery will create more problems for the user as the water topping will be more required. Battery life will be reduced, and if the panel size is too big for the battery to handle, then the chances of battery explosion cant be avoided in the Solar PCU system.

Lithium Battery option for bigger charge controller designing: the Lithium battery can be charged at 50% of its capacity, so with a Lithium battery, one can use a bigger charge controller and can install a higher solar panel size bank.https://suvastika.com/lithium-battery-option-in-inverter-ups-solar-pcu/#:~:text=We%20at%20Su-vastika%20have%20provided%20our%20inverter%2FUPS%2FSolar%20hybrid,only%20connect%20Tubular%20SMF%20and%20lead%20Acid%20batteries.

Here are some additional tips for sizing a solar charge controller:

  • You may need to size your solar charge controller for a higher amperage rating if you have a bigger battery bank sizing or installing a Lithium battery bank.
  • If you plan on using your solar system to power high-wattage appliances, you may need to size your solar charge controller according to battery bank sizing and than use higher battery bank voltage like 48V or 96 or 180volt battery bank sizing so that the current is reduced through the solar panels.
  • If you are unsure how to size a solar charge controller, it is always best to consult a solar installer. They can help you choose the right solar charge controller for your needs.
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What is MPPT Solar Charge Controller

Input voltage is Low

Maximum PowerPoint Tracking, frequently referred to as MPPT is an electronic system that operates the Photovoltaic (PV) modules in a manner that allows the modules to produce all the power they are capable of. MPPT is not a mechanical tracking system that physically moves the modules to make them point more directly at the sun. MPPT is a fully electronic system that varies the electrical operating point of the modules to deliver maximum available power.https://en.wikipedia.org/wiki/Maximum_power_point_tracking

solar panel graph

MPPT charge controllers offer several benefits over PWM charge controllers, including:

  • Increased charging efficiency: MPPT controllers can increase the charging efficiency of a solar system by up to 30%. This is because they track the solar panel’s maximum power point (MPP) and adjust the voltage and current accordingly. In low-light or cold conditions, where the solar panels produce more voltage than the battery bank can handle, MPPT controllers can still extract the maximum power from the panels.
  • Flexible design enables the user to use panel and battery rating as required.
  • Smart MPPT tracking algorithm to provide a current boost of up to 30%
  • Faster charging of the batteries compared to the PWM Charge controller
  • Temperature-compensated Battery charging to protect the battery
  • Auto/Manual Periodic Equalization charging for reducing the lead Acid battery sulfation and enhancing life.
  • Increased power output: MPPT controllers can also increase the power output of a solar system by up to 30%. This is because they can track the MPP of the solar panels and adjust the voltage and current to match the changing conditions of the solar irradiance and temperature.
  • Reduced wire size and length: MPPT controllers can operate at higher voltages and lower currents than PWM controllers. This can reduce the wire size and length between the solar panels and the battery bank, saving money and installation time.
  • Compatibility with more solar panels: MPPT controllers are compatible with a wider range of solar panels than PWM controllers. This is because they can track the MPP of solar panels with different voltage and current characteristics.
  • More features: MPPT controllers often have more features than PWM controllers, such as temperature compensation, load control, and battery type selection. These features can make MPPT controllers more versatile and user-friendly.https://suvastika.com/maximize-battery-life-in-ups-inverter-by-having-atc-feature-for-charging-lead-acid-batteries/#:~:text=ATC%20monitors%20the%20battery%E2%80%99s%20temperature%20and%20adjusts%20the,the%20battery%20from%20overheating%2C%20leading%20to%20premature%20degradation.

Overall, MPPT charge controllers offer several benefits over PWM charge controllers. If you are looking for the most efficient and powerful way to charge your solar batteries, an MPPT controller is the best option.

Here are some additional considerations when deciding whether to use an MPPT charge controller:

  • The size of your solar system: MPPT controllers are typically more expensive than PWM controllers. However, the cost difference may be offset by the increased efficiency and power output of an MPPT controller. If you have a large solar system, then the cost of an MPPT controller may be worth it.
  • The climate you live in: If you live in a cold climate, then an MPPT controller is a good option. MPPT controllers can extract more power from solar panels in cold conditions.

POWER SECTION: The power Section consists of a Buck converter, a DC-DC Converter used to Step down the Panel Voltage to charge the battery with the maximum current. Because the duty cycle of the buck converter Will be decided according to the Vmp and Imp Of the solar panel.https://suvastika.com/difference-between-mppt-and-pwm-solar-charge-controller/

MPPT Solar Charge Controller has the Four Stage Battery Charging Process (Bulk, Absorption, Float, Equalization)

MPPT charge controller has this Protection Against

Reverse Battery Connection

Surge Protection

Ambient Temperature Compensation

Heat Sink Temperature Compensation

Reverse Battery Current Flow Protection

PV High Current Protection

Overload and Short Circuit Protection

Conclusion: MPPT Solar Charge Controller increases the efficiency of solar panels.

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Difference between MPPT and PWM Solar Charge Controller

MPPT Vs PWM charging curve

The main difference between PWM and MPPT charge controllers is how they track a solar panel’s maximum power point (MPP).

  • PWM (Pulse Width Modulation) charge controllers use a simple method of charging a battery by switching the current on and off at a very high frequency. This method is relatively inexpensive and easy to implement but less efficient than MPPT controllers. PWM controllers also have a lower voltage range than MPPT controllers, which can limit their use in some applications.
  • MPPT (Maximum Power Point Tracking) charge controllers use a more advanced method of tracking the MPP of a solar panel. This method involves constantly adjusting the voltage and current output of the controller to ensure that the panel is always operating at its maximum power point. MPPT controllers are more efficient than PWM controllers and can be used with a wider range of solar panels.
  • Maximum Power Point Tracking, frequently referred to as MPPT is an electronic system that operates the Photovoltaic (PV) modules in a manner that allows the modules to produce all the power they are capable of. MPPT is not a mechanical tracking system that physically moves the modules to make them point more directly at the sun. MPPT is a fully electronic system that varies the electrical operating point of the modules to deliver maximum available power.

solar panel graph

MPPT Vs PWM charging curve

MPPT charge controllers are generally the better choice for most solar applications. They are more efficient, can be used with a wider range of solar panels, and can provide a longer lifespan for your battery. However, MPPT controllers are also more expensive than PWM controllers.https://suvastika.com/whats-pwm-solar-charge-controller/

There are important features which should be there in the MPPT charge controller to give a better performance, like Four Stage Battery Charging Processes (Bulk, Absorption, Float, Equalization) and ATC (Automatic Temperature compensation) for the temperature change to be compensated while charging through the Solar panels.

ATC Logo

 Also, these Protection Against

Reverse Battery Connection

Surge Protection

Ambient Temperature Compensation

Heat Sink Temperature Compensation

Reverse Battery Current Flow Protection

PV High Current Protection

Overload and Short Circuit Protection

Here are some factors to consider when choosing between a PWM and MPPT charge controller:

  • The size of your solar system: A PWM charge controller may be sufficient if you have a small solar system. However, an MPPT charge controller will be more efficient if you have a larger solar system, and the cost of Solar panels Vs an MPPT charge controller can be compared. There will be great savings in cost as the bigger the system higher the savings in cost if we use MPPT solar charge controller compare to the PWM solar charge controller.
  • The type of solar panels you have: If solar panels have a high maximum power voltage (Vmp), an MPPT charge controller can extract power from your panels.
  • Your budget: PWM charge controllers are less expensive than MPPT charge controllers. However, the extra cost of an MPPT charge controller may be worth it if you have a large solar system or want to maximise your solar panels’ power output.https://en.wikipedia.org/wiki/Charge_controller