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| Ev Archive for October 2002 |
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| 1331 messages, last added Tue Oct 22 14:03:22 2002 |
[Date Index][Thread Index]
Optima batteries - acceptable temperature range
Just reviewing the battery temperature range for Optimas, because if too hot
they vent (lose moisture) and too cold they cannot deliver full capacity.
According to specs:
BCI is based on 80 degrees F (26.7 degrees C)
BCI = 120 minute at 25a discharge,to 10.5v cut-off
Victor's controls try to keep batteries no less than 20 degree C (= 68.0
degree F)
For charging:
Series String base on <125 degrees F (51.7 degrees C)
Series String = 14.7v (max individual voltage < 15.6v)
What is the percentage performance with batteries get cold?
How about the (apparent) increase in performance when batteries get warm?
Trying to do some planning for the coming cold weather.
BR,
Ed Thorpe
Sparrow getting a replacement pack
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