Battery Cost per kWh Calculator
Calculate the true cost per kWh of battery storage by dividing total installed cost by usable capacity. Compare battery economics across brands.
Free Battery Calculators
5 toolsBattery sizing, cycle life, depth of discharge, and cost calculators. Browse our free battery tools below — no sign-up required.
Battery Cycle Life Calculator
Estimate how many years your solar battery will last based on rated cycle life and daily cycling frequency. Plan battery replacement timing and costs.
Battery Depth of Discharge Calculator
Calculate usable battery capacity based on total capacity and depth of discharge. Compare lead-acid vs lithium usable energy for solar storage.
Powerwall Equivalent Calculator
Calculate how many Tesla Powerwalls or equivalent units you need for your energy storage requirements. Enter your capacity need to find the number of units.
Solar Battery Sizing Calculator
Calculate the optimal battery capacity for a solar-plus-storage system. Size your battery bank based on nighttime usage, backup needs, and depth of discharge.