Vitaliy wrote:
> Jake Anderson wrote:
>   
>> The torches use ultra caps I think (the LED ones) and the toys use
>> lithium ion polymer cells way beyond what they are speced at ;->
>>     
>
> Time to reveal the embarrassing details.
>
> I got a hold of a small RC car. It gets charged from the remote (4 AAs), 
> which has a barrel type plug on the side. You plug it in, wait a few 
> minutes, the red LED on the remote goes off, the car is charged.
>
> Skipping the obscure reasons why anyone would do this, I decided to charge 
> the car from a 5.6V Nokia charger. Unfortunately I got distracted, and left 
> it plugged in far longer than intended. I was reminded of the fact by the 
> smell of melting vynil and plastic.
>
> The battery inside the car has two small cells connected directly to the 
> power jack. I opened up the remote, and confirmed that it has some sort of 
> overcharge protection circuitry.
>
> The cells are about as wide as a AA battery, but only about 1/3 as long. At 
> this point, I can try to find an exact replacement, or try another solution. 
> I doubt that a supercap would hold enough charge to be practical?
>
> I have an LED flashlight that has to be cranked for about a minute to fully 
> charge it (it stays nice a bright for about 3 minutes or so). The 
> manufacturer also recommends charging it once a month to keep the battery in 
> good shape.
>
> Vitaliy 
>
>   
Take a look at
http://www.hobbyking.com/hobbycity/store/uh_listCategoriesAndProducts.asp?catname=ZIPPY+Lipoly&idCategory=235&ParentCat=85

see if you can replace it with LiPo ;->
moar powah!
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