Tool
Will my 12 V lithium setup last?
Pick your lithium battery, chargers, inverter, solar and appliances to see whether the parts fit each other's published limits and how many days the bank lasts. One 100 Ah 12.8 V LiFePO4 battery plans as 1,024 Wh usable at the default reserve calculated. Everything runs in your browser. Updated .
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What it checks
Every part is a 12 V part; the batteries in parallel are within the maker's stated count; the converter has a lithium mode at a voltage inside the battery's range; charger currents are within the bank's max charge current; the inverter's full-load and surge draw are within the BMS ratings; and the coldest night is above the battery's minimum charging temperature. Each check is explained on the checks page, and the methodology lists every formula and assumption.
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