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Unread 06-02-2014, 11:38 AM   #1
Gone Wild
Club Car
Join Date: Sep 2012
Location: Alberta - Canada
Posts: 902
Default OBC must get puzzled - but seems normal - why?

No problems - just seeking knowledge from OBC/charger smart people to know what my OBC is "thinking" (because of how I'm charging). The situation: Brand new battery pack with just over 20 rounds (4/wk) of golf so far. I use my Battery Minder to recharge after each of 3 rounds, and then the OEM Powerdrive Charger once each week (Sat/Sun). The Battery Minder@2amps recharges the pack in slightly less than 12 hours - and floats at about 54-55v. The Powerdrive Charger naturally shuts down more quickly - but looks normal (charges at 12+ amps and descends within an hour to 5-7 amps, then about 2 amps to finish in about 6 to 8 hours).

On the one day a week I use the OEM Charger, the OBC must think that a huge amount of energy has been used, since it is out of the loop and wouldn't see the Battery Minder charge cycles during the week. Yet it seems to recharge normally - I was expecting it to try to "overcharge/equalize" over a longer time period. Or is it equalizing over a short time period?

Or maybe it knows? The battery light never comes on - does sorta....twice or three times in a round. The battery light comes on - self tests - and after about 3-4 seconds, turns off (this is totally normal - it has done that since new). Is it possible the self test process helps the OBC to realize the batteries are not declining and somehow alters its "energy-used-data"? Anyone have a thought on the topic?
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