![]() if the battery receives 15 Amp it will take 10 hours to charge.Ī Solar panel is typically 9 Amp, so typically 2-3 solar panels will be required. So a battery will take:Īssuming 150 Ah battery and 15 Amp of power, i.e. On an average, sunlight is there for 10 hours. This depends on the sunlight’s availability. **Now let’s calculate in how much time will a battery be charged and how many solar panels are required to be installed, which are other common questions in the minds of the buyers. Considering a small home needs a minimum of 300 W. ![]() Taking a lead acid battery with 70% efficiency only 1400 W load should be available and will work for 4-5 hours. Simple Calculation is 150 AH battery * 12V = 1800 W Typically a 150Ah battery with 12V rating can store upto 1800 W of power. Now, the time for which appliances will work on back up depends on the battery’s capacity. Let’s calculate and see what is the load of the house in use in case of a Power failure. Must read this example, a small home needs a minimum of 300 W to run a fridge, fan, and light which can be easily supported by a 1 kVa inverter. A panel’s range should be double that of the battery. Home load depends on inverter load capacity and back up power and time depends on the battery’s range. One important point to highlight here is that the function of a solar panel is to charge the battery and not to make appliances work. Solar Panel Buying GuideĬustomers are often confused as to how much load can be supported by solar panels. Price of a 24V solar panel can vary in between Rs. Price of a 12V solar panel can vary in between Rs. To see our case studies.ġ2V solar panel is available in 10W, 20W, 40W, 50W, 125W, 160W and 180W, whereas 24V is available in 330W and 350W. Solar panels are also available in different ratings e.g.Ī 12V solar panel can be used for different applications like street lights, tourist van, shops, small homes, home lighting, mobile charging, solar bag, science project, solar water pump, office, fishing boats, etc.Ī 24V solar panel can be used in big homes, hospitals, banks, offices, on grid applications like factories, apartments, parking, parks, government building, solar parks, etc. For instance, a 9 Ampere solar panel cannot be paired with a 6 Ampere charge controller.Ī Charge controller is available in a wide range of ratings from 6 Ampere to 53 Ampere. One important thing to keep in mind here is that the solar panel’s rating should not be higher than that of the charge controllers. If a 12V battery and a 12V inverter is there, a 12V Charge controller should be used. The rating of a charge controller should match with the ratings of the inverter and the battery. 24V battery (connected in series) - 24V inverter - 24V solar panel will be connected.12V battery - 12 V inverter - 12 V solar panel will be connected.Inverters are available in different ratings like 12V, 24V, 48V, etc. For example, a 12V solar panel should be paired with a 12V inverter and a 24V solar panel should be used with a 24V inverter. Like the battery, solar panel should also be compatible with the rating of the inverter. Solar power battery 12 v 24 watts 2.0 amps series#24V panel - 24V (2* 12V batteries in series connection).An important point to be noted here is that a 24V rating battery is not available in the market, but you can create one by joining two 12V batteries in a series connection. Generally, a 12V solar panel should be paired with a 12V battery and a 24V solar panel should be used with a 24V Battery. ![]() The choice of the rating of a solar panel depends on the rating of the battery used. We have tried to differentiate between them basis five points: Other than this basic thumb rule, there are different technicalities to consider when deciding between the two. A 12V solar panel is generally suitable for small residences or projects of smaller size in contrast to a 24V solar panel. ![]() It tries to differentiate between a 12V solar panel and a 24V solar panel. We also receive many queries from our readers and potential buyers who are confused about the rating of the solar panel they wish to buy. A solar panel is available in a wide range of wattages and volts. Then you need to decide the rating of your panel. ![]() You first screen through hundreds of brands available in the market and then come to a final decision, based on the manufacturer’s credibility, warranty, services, etc. It becomes difficult to choose between the tons of choices available in the market today. But there are many different parameters to screen before deciding upon your final solar panel and being a common man, it becomes difficult to decide. Your decision will not only result in savings for you but is also a good option for the environment. It is awesome that you have decided to go solar. ![]()
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