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Charging calculators

How fast will your battery charge from the alternator, a mains charger or solar? Size a DC-to-DC charger and estimate charging times.

Battery charge time calculatorHow long a charger takes to fill a lead-acid or lithium battery.DC to DC charger size calculatorChoose a battery-to-battery charger to suit your alternator and battery.Solar battery charge time calculatorHow many sunny days or hours solar takes to charge your battery.Battery charging voltage calculatorAbsorption, float and cut-off voltages for LiFePO4 and lead-acid at 12/24/48 V.

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