can you charge lets say 8 maybe 12 AA rechargeable batteries using the ouput from a rechargeable toothbrush ?

Is the power that normally charges the small batteries of an electric toothbrush strong enough to charge 8 to 12 AA ?

I don't think you would have enough amps to charge all 12 batteries at once. And if you used just a few then you would have to watch it to prevent overcharging and damaging the batteries. A better solution is just to buy a dedicated battery recharger. I have an energizer 15 min charger and its pretty smart. I accidentally put some regular alkaline batteries in it and it gave an error light before it attempted to charge them.
lemonie7 years ago
I wouldn't have thought so. You can't fit 12 AAs in a toothbrush, they're not designed to charge that many cells. L