Hi everybody!
I'd like to add a battery charger for a 4xAAA NiMH pack to a portable headphone amplifier. Charging speed doesn't matter to me. After a bit of search and some thoughts (possibly wrong: I'm not a EE!) I had the idea of using a trickle charger at 0.05C with a voltage limiter. In my mind, even if voltage limit is not considered a proper charge termination strategy, my charger should:
- not overcharge the cells, if mistakenly left ON forever (yes, I'm most of the time absent-minded);
- not discharge the cells, if left OFF forever (except for the few uA leakage of the 1N4001).
Would my schematics work the way I expect?
Thanks very very much in the anticipation for every comment about it.
Massimo
I'd like to add a battery charger for a 4xAAA NiMH pack to a portable headphone amplifier. Charging speed doesn't matter to me. After a bit of search and some thoughts (possibly wrong: I'm not a EE!) I had the idea of using a trickle charger at 0.05C with a voltage limiter. In my mind, even if voltage limit is not considered a proper charge termination strategy, my charger should:
- not overcharge the cells, if mistakenly left ON forever (yes, I'm most of the time absent-minded);
- not discharge the cells, if left OFF forever (except for the few uA leakage of the 1N4001).
Would my schematics work the way I expect?
Thanks very very much in the anticipation for every comment about it.

Massimo