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JakeRich · 11-05-03, 03:38 PM

With only 400 ma available, it's actually depleting the battery faster than it can charge it. We have noted with some of the USB connector chargers that below about 70% battery strength a weak charger actually discharges the battery. Apparently what happens is that the charging unit sees the voltage on the connector and assumes it has the 2410 ma available that comes from the Dell unit. It starts to charge the battery, but the charging circuits start to draw a lot more power at 70% or so. The power supply can't handle it so the charging circuit starts to draw power from the battery to make up the difference. As a result the battery dies quickly.

So, get a charger with at least 2+ amp output at 5.4 v and you should be ok.

11-05-03, 03:38 PM	#7 (permalink)
JakeRich Aximsite Hall of Fame Join Date: Nov 2003 Posts: 7,875 Thanked 1 Time in 1 Post	With only 400 ma available, it's actually depleting the battery faster than it can charge it. We have noted with some of the USB connector chargers that below about 70% battery strength a weak charger actually discharges the battery. Apparently what happens is that the charging unit sees the voltage on the connector and assumes it has the 2410 ma available that comes from the Dell unit. It starts to charge the battery, but the charging circuits start to draw a lot more power at 70% or so. The power supply can't handle it so the charging circuit starts to draw power from the battery to make up the difference. As a result the battery dies quickly. So, get a charger with at least 2+ amp output at 5.4 v and you should be ok.