Solar Panel And Battery Bank Calculator

When using an inverter the current draw on the battery side can be extremely high so you may need a battery bank that is larger than the minimum.

Solar panel and battery bank calculator.

The lithium batteries we use are purpose built for off grid solar and utilize a special lithium chemistry called lithium ferro phosphate lifepo4 commonly called lfp. The off grid solar panel system calculator helps you size the battery bank watts of solar panels and the solar charge controller you need. The calculator assumes you will need to size your system to get you through average amount of sun light in the least sunniest month of the year for your location. Please remember that this calculator works out the minimum battery bank size for a given power consumption.

At a bare minimum most customers will have have a solar panel that can output two day of power in a single day and they will often select a battery that can withstand two days without solar and still not. Batterystuff tech i would suggest running your numbers into the calculator. For example 1200w drawn at 240v is only 5a whereas at 12v this current increases to 100a. Because of the better efficiency and deeper discharge depth lithium battery banks tend to be only 50 60 of the size of a comparable lead acid bank.

By using the very same solar battery calculator you can define as well the number of solar batteries connected in parallel if your solar battery bank is composed of solar batteries of voltage equal to solar panel nominal voltage i e solar power system voltage.