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Old 08-24-2012, 03:06 AM
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Luchnia
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Default RE: A123 Question


ORIGINAL: Truckracer


ORIGINAL: Taz_Hobbies


ORIGINAL: Truckracer

Taz, I don't question your findings and the capacity used out of the battery on each flight .... .but I certainly do question that voltage reading on your charger! That is in line with a fully charged two cell LiPo, not a LiFe battery! Are you sure your charger is operating in the LiFe mode? I would expect to see 7.2 V on the display at the end of a LiFe charge cycle.
Yes, it automatically detects the LiFe batt over the Li-Po and goes into auto mode. It always reads 8.38V when the charge cycle is complete. During charging it is around 7 to 7.5v.
Battery ''B'' took 23Mah earlier but I got sidetracked and forgot to snap a photo. It also read 8.38v.
Hmmmmm, seems strange to see any reading at any time higher than 7.2V or two LiFe cells!
I manually set my LIFE settings at 6.6 and max cut-off at 7.2. I found the "Auto" functions on some chargers simply do not work correctly. I once overcharged to 8.4 on "Auto" and once I found out, I then discharged the pack and charged back up to LIFE 6.6 with a 7.2 cut-off. Now the charger goes up to 7.2 and charges the battery correctly.

I think the problem is that the charges cannot properly identify the difference and just catagorizes the batteries as LIxx even though they say they can correctly charge on "Auto" settings.