Call Us M-F 8 to 5 PST 1(800)472-1142 or 1(530)926-2900 E-mail us email@example.com or Request a Quote
Battery Bank Sizing Calculator
How much storage you would like your battery bank to provide? Base this on the number of days your system will have to provide power without solar input. How many cloudy days in a row are typical for your location? Do you have an alternate source of powergrid intertie or generatorduring these days?
It's not good for batteries to be completely drained (ever), nor is it good for them to be consistently undercharged. It is best to size your battery bank so that it gets regularly charged to capacity.
If you are installing a system for a weekend home you may want to consider a larger battery bank, because your system will have all week to charge and store energy. Alternatively, if you are adding an array as a supplement to a generator-based system, your battery bank can be slightly undersized since the generator can be operated if needed for recharging.
When you sized your solar panel array, you were dealing with watts per hour that you need to produce. Now you will be dealing with amps per hour that you need to store. Remember watts = volts X amps. Now grab a calculator and do the math..........