- Tue Jun 13, 2006 4:26 am
#14472
Techincally you should be able to reverse any chemical reaction. It just depends how much energy you need to throw at it. I don't believe, alkaline's aren't the most efficient in terms of recharge. Recharging is still better than throwing them out in my opinion.
One thing that would be a good idea on that recharger would be also limiting by temerature. 24 ohm PTC termistor in stead of a straight resistor with mounting near the battery would make it a little safer on the initial charging of weak batteries (since this is a regulated current source now).
I also don't think charging batteries in series is a good idea either, since you don't know the distribution of charging. Parallel with some diodes would work the best. As well as having an input voltage of around 1.5V + the average voltage drop of the circuit so that the current would be reduced to 0 on a full charge.
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