Tag Archives: battery capacity

battery bank, battery recharge

How long does it take to recharge?

To determine recharge time from the solar panels, just divide the utilized battery capacity (in kWh) by the daily solar harvest (in kWh/day).  For instance, the MS-225 has a battery capacity of 25kWh and solar array has a daily harvest of 9kWh/day.  Let’s assume you drain the battery down 80% (meaning 20% is left in the battery).  The math: 25kWh x 0.80 = 20kWh.  And 20kWh / 9kWh/day = 2.2 days of solar charge to bring the battery back up to a 100% State of Charge (SOC).

MS-375 inside

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