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
Ambient Temps started at 44F and rose to 58F over 10 hrs. Just before test, OCV was @ 12.86v:
A1 1.295, 90, 80*
A2 1.295, 90, 80*
B1 1.295, 90, 95
B2 1.295, 95, 95
-----------------------
At 2 1/2 hrs:
A1 1.280, 75, 60*
A2 1.265, 60, 60*
B1 1.275, 70, 70
B2 1.265, 65, 75
----------------------
At 5 hrs:
A1 1.250, 45, 35
A2 1.240, 40, 35
B1 1.235, 40, 40
B2 1.235, 30, 50
----------------------
At 7.5 hrs:
A1 1.230, 10, 05
A2 1.210, 15, 05
B1 1.205, 10, 10
B2 1.205, 05, 15
----------------------
At 10 hrs:
A1 1.190, 75, 75
A2 1.190, 90, 80
B1 1.180, 80, 75
B2 1.175, 65, 75
Any thoughts, observations, queries, conclusions appreciated.
A1 1.295, 90, 80*
A2 1.295, 90, 80*
B1 1.295, 90, 95
B2 1.295, 95, 95
-----------------------
At 2 1/2 hrs:
A1 1.280, 75, 60*
A2 1.265, 60, 60*
B1 1.275, 70, 70
B2 1.265, 65, 75
----------------------
At 5 hrs:
A1 1.250, 45, 35
A2 1.240, 40, 35
B1 1.235, 40, 40
B2 1.235, 30, 50
----------------------
At 7.5 hrs:
A1 1.230, 10, 05
A2 1.210, 15, 05
B1 1.205, 10, 10
B2 1.205, 05, 15
----------------------
At 10 hrs:
A1 1.190, 75, 75
A2 1.190, 90, 80
B1 1.180, 80, 75
B2 1.175, 65, 75
Any thoughts, observations, queries, conclusions appreciated.
