How Many Batteries Do I Need For My Solar Panels

Batteries can be found in sizes ranging from under 2 kwh up to 16 kwh or more.

How many batteries do i need for my solar panels.

If you were using 200 watt panels you would need only three panels and four 300 amp batteries. Now of course this will depend on the wattage of your panels but you should be getting a better idea of what you need to power your setup. For the 9600 watt system i need sixteen 100 watt panels and four 200 ah batteries. It s usually a good idea to round up to help cover inverter inefficiencies voltage drop and other losses.

Think of this as the minimum battery bank size based on your typical usage. For this system you would need seven 75 watt solar panels and four 300 amp hour batteries. You may want to consider 600 800 amp hours of capacity based on this example depending on your budget and other factors. So in the case above to achieve my 9600 watts a day i would need sixteen 100 watt panels.

What this means is that to meet the typical energy needs for this time frame you will need a battery that is around 10 kwh in capacity with a power rating of at least 5 kw.