How do you recharge them????
1708764
Probably a standard NIMH recharger. You can buy them for $5 and up -- I have a $40 one. The more expensive ones make your batteries last longer.
1381632
They take rechargeable AA. Not that it matters. I replaced them thinking cheap factory batteries might be the issue. Nope. The units in my opinion are just junk, plain and simple.
1878945
You will have to use a "dumb" charger to charge them up a bit before your can use them with this charger. Hope this helps.
1235666
They do need to be plugged in. I suppose that is what allows the phone's battery to recharge.
604582
triple AAA batteries. where do they go, how to put them in?? can't figure it out. ????
2264265
Hmmm.... I'm sorry.... Im really not sure. Do they even have a battery? How long have you had yours for? Maybe just order some more
1212965
Recharges by USB. Which, ironically, is the same way it charges other things...Basically, if you have the ability to recharge it, you probably do not need it right then.
1480556
Yes. They are rechargeable. They are great but mine only work about 1 month
360866
They should recharge in the sunlight. I had about 4 arrive not working tho and they never have.
1107369
No, they are no rechargeable. The old brush was a plug where you could keep it charged, but the new one has batteries that need to be replaced.
1371681
Do not drain them. Charge overnight BEFORE you use them. I know in the past to drain then charge, but not with these.
527941
Ken,I did not think these were rechargeable. I have never tried to recharge them.Dan
1153207
Recharge these anytime. In fact, best to NOT let these run down entirely, as these (unlike Ni-Cad) have no 'memory.' Mainly don't overcharge. These take about a 2 hour charge, and overcharging in an attempt to bring them up to full capacity cause battery 'stress.' You can get the full, more scientific answers to your questions if you Google. Also, remove from charger after charging.
223172
You charge them by placing the battery into the charger so that the 3 contacts meet. As soon as you do that, the light will turn Blue. After that, plug the charger into the wall. If your battery is not charged, the light will turn a pinkish color (purplish-red to me) indicating that it's charging. When it turns blue again, the battery is fully charged.Hope that helps too.
437082
They each use a pair of AAA batteries, I haven't had to replace them yet. You could put rechargeable batteries in them if you wanted but they would have to be charged externally.
543228
Regular aa's will work but I used rechargable. I do not recomend this product
416612
The previous answer is right. You insert a AA battery in them, and then use them like a D battery, but you have to buy the AA battery first, and I imagine that they don't last very long, since you are trying to use an AA battery to do a D battery's work. But, if you want a rechargeable replacement for a D battery, then this is your option.