Quote:
Originally Posted by midnight
Deep cycle and occassionally vrla batteries are used in solar and hence are designed for discharges well beyond 30% due to their thick wall plates. It is actually possible to discharge some more expensive types up to 85% without major damage if re-charged quickly - Yes this is true as we often do discharge tests in industry to prove the capacity to clients.
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Yes this is true Darrin but you have neglected to add this will greatly reduce the amount of duty cycles your battery would be capable of if this was done on a regular basis.