Would a c/12 sized battery bank that is (ideally) never taken to more than 40% discharged appreciably outlast a c/10 sized battery bank that is (ideally) never taken to more than 50% discharged? I'm trying to determine if the added cost of extra AH can be warranted in terms of longevity. Or are there any serious downsides to oversizing the battery bank and intentionally limiting its discharge percentage?
Based on 36 maximum amps of charging current calculated for my 4 x 260 Watt panels (the Midnight Classic sizing tool says 1,040 Watts/28.8V = 36.1 charging Amps) the ideal C/10 battery bank for my 24V system would be 360 AH in capacity, but I'm considering batteries rated at 420 AH, so that's why I'm asking this.
Based on 36 maximum amps of charging current calculated for my 4 x 260 Watt panels (the Midnight Classic sizing tool says 1,040 Watts/28.8V = 36.1 charging Amps) the ideal C/10 battery bank for my 24V system would be 360 AH in capacity, but I'm considering batteries rated at 420 AH, so that's why I'm asking this.
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