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Posted by Tomi Engdahl (195.197.151.211) on December 18, 2003 at 09:46:23:
In Reply to: Handy charger posted by may on December 16, 2003 at 22:03:23:
: >Feature
: This generator suits varies circumstances,charge your mobile phone, camera or PDA. charging with high efficiency and high saturation .Fully utilize your phone/camera/cell. Built-in safe circuit, constant current,
: regular voltage, to protect your valuable mobile phone. Fashionable design, Mini size, portable and convenient.
: >Specification
: Max output voltage:8VDC
: Max output current:320mA
Those figures looks as an interresting reference. It seems that this device works with wide variety of devices, so I quess that those specifications could be used as a quite nice reference for building cellular phone chargers.
What is said here seems to match what I have looked at earlier from some Nokia cellular phone accessories:
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.
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