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tatums4 04-04-2011 06:16 PM

How to convert AAA batteries?

Is there way to convert 3 AAA batteries to a thin round lithium battery, in that our son plays with a toy that uses A LOT of AAA batteries and since the product uses 3 AAA's at a time, I thought I would try converting it to a lithium battery instead to see if it saves us a little money.

Thanks for the feedback!

DangerMouse 04-04-2011 06:19 PM

It seems to me it'd be easier to get re-chargeable AAAs and a charger?


Dahammer 04-04-2011 06:53 PM

Just pick up some Sony Eneloop rechargeable batteries and a charger.

DangerMouse 04-04-2011 07:01 PM

Isn't that what I just said? Brand name should not matter.


BigJim 04-04-2011 07:39 PM


Originally Posted by DangerMouse (Post 623351)
Isn't that what I just said? Brand name should not matter.



Red Squirrel 04-04-2011 07:42 PM

Watch out with rechargeables, they are usually only 1.2 volts instead of 1.5. Some devices wont care, but others will. The more batteries it takes, the bigger difference it will make.

ex: 3x normal AAA @ 1.5 volt = 4.5 volts. 3x rechargeable AAA @ 1.2 volts = 3.6. If you can somehow fit a 4th battery in there by modifying the toy, you could get away with it as it would bring you to 4.8 volts which is slightly over what it needs but should not be too much more. Or if it's easier you could try to convert to AA. They are normally more readily available in bulk packs, and they'll last slightly longer.

davido30093 04-04-2011 07:47 PM

First, there is no way that you can convert to the smaller type batteries because the amp hour rating is way to small, lithium or not. Second, the easiest way to convert to lithium batteries for you would be to pick up some AAA lithium batteries. Done.

DangerMouse 04-04-2011 07:49 PM

ORRRRR, just do like "I" do and RECHARGE the AAA Alkaline batteries!
Then there's not a problem!


Red Squirrel 04-04-2011 07:51 PM


Originally Posted by DangerMouse (Post 623385)
ORRRRR, just do like "I" do and RECHARGE the AAA Alkaline batteries!
Then there's not a problem!


Is that actually safe? I've done it before by accident, and it actually works! But I thought it had a chance to explode or something, or is that just a cheap label they put to scare you?

davido30093 04-04-2011 07:54 PM

No, it is not safe. They can explode if you charge them too fast, or for too long. They will re-charge for a limited amount for a few times, then they are gone. If you are not sure about the charging rate or charging time, it is best to not do it.

pyper 04-04-2011 07:54 PM

NiMH rechargeable batteries rock. They work in absolutely everything I've tried. It really wouldn't shock me if I found out that all portable electronics were designed for the 1.2V they put out.

The only reasons I'd buy lithium batteries:

1) I needed shelf life. Example might include a flashlight in a glove compartment.

2) I was stuck somewhere needing to use my AA camera and my NiMH batteries had exceeded their useful life. This happened to me.

DangerMouse 04-04-2011 07:54 PM

ummmm, I use a Battery Master which is MADE to recharge alkaline and nicads.... you can get DOZENS of recharges from good (read Duracell or Eveready alkalines) alkaline batteries. It does aa, aaa, c and d cells.... I just wish it did 9v too....


davido30093 04-04-2011 07:59 PM

Read the label on your akaline batteries and see if it says that it is safe to recharge them. It does not matter what the maker of the charger says, it matters what the maker of the battery says.

davido30093 04-04-2011 08:01 PM

BTW a "real" rechargable battery can be recharged hundreds of times during its normal life cycle.

DangerMouse 04-04-2011 08:14 PM

This thing has recharged hundreds of alkaline batteries with no problems....


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