Forum Discussion
wa8yxm
Nov 01, 2016Explorer III
First if the battery has a CCA rating (Cold Cranking Amps) or an CA or MCA rating (Cranking amps or Marine cranking amps) it is MOST LIKELY a starting battery not a true deep cycle (Thoguh there is no reason not to computer the cranking amps for a Deep cycle, that's not their primary use so it's not common)
With batteries in paralles. if one is "Very thirsty" compared to the other, there are only two (well 2.2) possible answers
1: Bad connection, only one battery actually in use, other just taking up space
2.1 One battery failed: High resistance, Just sitting there taking up space
2.2 One battery failed, Shorted cell, sucking up water as a result.
In either case, Take 'em out, Charge them one at a time and haul to Auto store for testing.. Replace with a pair of GC-2 Six volt Golf car batteries in SERIES 230 amp hours at 12 volts, cost about the same as 150 amp hours of 12 volt type and are TRUE deep cycle.
With batteries in paralles. if one is "Very thirsty" compared to the other, there are only two (well 2.2) possible answers
1: Bad connection, only one battery actually in use, other just taking up space
2.1 One battery failed: High resistance, Just sitting there taking up space
2.2 One battery failed, Shorted cell, sucking up water as a result.
In either case, Take 'em out, Charge them one at a time and haul to Auto store for testing.. Replace with a pair of GC-2 Six volt Golf car batteries in SERIES 230 amp hours at 12 volts, cost about the same as 150 amp hours of 12 volt type and are TRUE deep cycle.
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