Thread: N900 Wireless Charging
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biketool is offline biketool
2014-06-05 , 14:52
Posts: 1,432 | Thanked: 2,630 times | Joined on Jan 2011 @ Touring
#23
Originally Posted by sixwheeledbeast View Post
Looking at one of the links above it has been done.
If it is putting strain on the charging circuitry inside the device it yet to be proven.
It seems the battery charges without the device knowing about it. I would assume shorting the Data pins would trick the device into thinking it's charging.
Shorting data pins makes the N900 able to charge as normal from 5v run through the ground and USB 5v+ pads.

If you have a Li-ion charge board to add to your phone that charge logic will handle the required 4.1v charging voltage and terminating charge for a full battery on your 3.7v BL-5J battery, it takes a reboot in my experience to get the N900 to report correct charge state once you are finished charging.using an auxiliary charge manager circuit.