Thread: Make Your Battery Last Longer
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egoshin is offline egoshin
2010-05-01 , 15:12
Posts: 992 | Thanked: 995 times | Joined on Dec 2009 @ California
#39
Originally Posted by egoshin View Post
In accordance with electronic charts the battery charger chip feeds battery through the same wire which is used to get power from battery. So, the green lamp is not a prove that battery charger chip doesn't feed 3.7V. At least the charger DEFINITELY feeds a system voltage while it charges a battery.

Tomorrow morning I will look into BQ27x00 gauge indicators then charger is attached but green lamp is lit.
OK, this morning, after all night on charger (green lamp on) and doing multiple measurements I see the current through charger chip in BOTH directions - battery discharge and battery charge.

But battery charge current is 10 times less than during charge start (yellow lamp slow blinking). And battery discharge current is also smaller (2 or 4 times) then usual, w/out connected charger.

So, the bottom line - charger feeds N900 with small current while battery is full. Sometime it powers N900 and charges battery-a-light but if I use a phone (unlock and run apps) then it's current is not enough and N900 is powered by both - battery and charger.
 

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