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Posted by bert (192.100.124.218) on December 18, 2003 at 12:05:28:
In Reply to: Cellular phone charger information (Re: Handy charger) posted by Tomi Engdahl on December 18, 2003 at 09:46:23:
: My original Nokia 6150 charger (traditional transformer) said it has output specifications: 3.7V DC 355 mA
: My table-top charger for the same phone model
: (not original Nokia product) says that the charging current for the phone is: 9.0V DC around 500 mA
: Some Nokia cellular phone battery powered pocket charger: Normal 9V battery seems to be directly wired to the output connector.
It's not wise to use that kind of stuff. The phone's charging circuit relies on the charger's current limiting abilities. You overstress the charging transistor and the battery by giving it 500 mA. I doubt that the table cradle has a current limiter.
Bert
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