GH2 GH2 Battery Charger?
- Thread starter Boncrek
- Start date
I bought one from this eBay seller: http://cgi.ebay.com/BLC12-BATTERY-C...731?pt=Batteries_Chargers&hash=item231029cecb
It arrived in about two weeks and I've put it through about 30 charge cycles so far, testing it. It comes with a 12 V car adaptor, which could come in handy. If my digital multimeter is to be believed, the charging terminates at 8.30 volts, resulting in a small loss in capacity of about 20-30 mAh compared to when I charged the battery on the bench at 8.40 volts, the voltage to which it should be charged. But I can't verify that my meter is correct, so what I thought was 8.30 volts may have been 8.40 volts (1.2% difference, and my meter is rated at +1%, so the voltage could have been 8.40 volts)
Anyway, if you can't find a charger elsewhere, you won't lose much by paying $13 (including postage) for this one.
It arrived in about two weeks and I've put it through about 30 charge cycles so far, testing it. It comes with a 12 V car adaptor, which could come in handy. If my digital multimeter is to be believed, the charging terminates at 8.30 volts, resulting in a small loss in capacity of about 20-30 mAh compared to when I charged the battery on the bench at 8.40 volts, the voltage to which it should be charged. But I can't verify that my meter is correct, so what I thought was 8.30 volts may have been 8.40 volts (1.2% difference, and my meter is rated at +1%, so the voltage could have been 8.40 volts)
Anyway, if you can't find a charger elsewhere, you won't lose much by paying $13 (including postage) for this one.
adolgin
DVXuser Sponsor
Guyburns, just fyi if the charger is undercharging at 8.3V, the small capacity loss of 3%-5% comes with much better cycle life. Overcharging just by a bit increases charge capacity but damages the cells. That is why conservatively designed Li-Ion chargers intentionally undercharge the cells, their end of charge voltage is set to 4.1V or 4.15V/cell instead of more common 4.2V.