Re: 82002A Battery Charger voltages Message #2 Posted by Tony Duell on 7 Mar 2005, 1:58 p.m., in response to message #1 by Pyerre
I am pretty sure you can download an ascii-art schematic for
this type of charger from somewhere on this site. If not, then e-mail me and I'll send it to you.
The 35 should run off the charger even without a battery pack (the 2 outputs from the charger are a constant-voltage supply, supposidly 4.2V, for the logic, and a constant current supply to charge the battery. The battery is disconnected from the logic when you connect the charger).
Most likely the output from your charger has excessive ripple. The voltage looks fine, but you'd not see ripple on a voltmeter. Again most likely the 400uF electrolytic capacitor on the charger PCB has dried up. Try replacing it (a 470uF is fine).
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