Capacity Testing and 20 HR Rating
I'm thinking about doing a capacity test on my four GC2's. They have a 20hr rating of 215Ah. One thing I'm curious about is how the 20hr rating would have been determined. Being 6v, would they h...
Forum Discussion
Uh who actually cares about capacity below 50% ?
Sort of like determining gas mileage at 110 mph
The BCI test is great for OEM to qualify 20-hour verification standards but it ain't 1954 no more. Do yourself and others a favor by measuring amp hour capacity at a more realistic 10-ampere discharge until specific gravity reaches 50% SOC.
Such would make comparitive analysis useful for determining the difference when the battery was new versus when the battery reaches 100-cycles in age.
CCA ratings are useful. The 20-hour test is too specialized a target to make sense these days. If you wish to test durability perform destructive discharge cycle tests.
Sort of like determining gas mileage at 110 mph
The BCI test is great for OEM to qualify 20-hour verification standards but it ain't 1954 no more. Do yourself and others a favor by measuring amp hour capacity at a more realistic 10-ampere discharge until specific gravity reaches 50% SOC.
Such would make comparitive analysis useful for determining the difference when the battery was new versus when the battery reaches 100-cycles in age.
CCA ratings are useful. The 20-hour test is too specialized a target to make sense these days. If you wish to test durability perform destructive discharge cycle tests.
