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Old 08-24-2012 | 08:28 AM
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raptureboy
 
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From: Kempton PA
Default RE: A123 Question

<div style="text-align: center; margin: 0in 0in 0pt" align="center"><font size="3"><span style="color: black">1. Non Balancing 'smart chargers' and the myth that A123's 'don't need balancing'.<span style="color: black">A close tofully charged pack, deeply discharged pack or out of balance packmay be easily mis-identified by a 'smart'charger WITH THE WRONG CELL COUNT. The results are usually always a ruined pack. If a qualitybalancing charger is used and correctly connected, the charger will see the individual cell voltages in the pack, correctly identify it's cell count and usually report on the individual cell voltages all the way through the charge routine. If 'smart' means stabbing a button and waiting for a green light... well; that mightnot be an appropriate charger for a critical application battery pack.</span></span></font></div>
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.