Dragons Hobbies Forum

Radio Control and Models => General RC => Topic started by: Dragon on March 19, 2011, 16:59:43

Title: NIMH batteries in RC Toys
Post by: Dragon on March 19, 2011, 16:59:43

I was in Toys R Us a couple days ago and saw that lots of the R/C cars there had stickers advertising "More Power/Longer Lasting" with NIMH batteries. One that said that was a huge 9.6V Dodge Charger, which caught my eye because my son said that he wanted a Dodge Charger RC car for his birthday. Have any of you guys checked those out?

Title: Re: NIMH batteries in RC Toys
Post by: Gamester on March 20, 2011, 01:40:42

Nickel-metal hydride (NiMH) batteries do have more capacity and longer run times, but do not supply any more power than the old Nickel-cadmium battery (NiCd).  NiMH batteries can have in upwards of 5000 milliampere-hour (mAh)where as NiCd is usually only in the 100smah or low 1000s.  Even better than NiMH is the Lithium-ion polymer (LiPo) batteries that can exceed 5000mAh.  However, the actual power that a battery puts out is based on its voltage.  Meaning that a 9.6v NiMH battery would have the same power output as an old NiCd.  The NiMH would just last longer.

Hope this helps ;)
Gamester

Title: Re: NIMH batteries in RC Toys
Post by: jeffescortlx on March 20, 2011, 12:28:17

Is the life expectancy on the NiMH better then Nicad?
I tried to use 8 NiMH AA in a old Nikko Buggy, I used a charger rated for NiMH, set it at 2 amps, then later set it down to 1 amp and the suckers got hot fast. And they wont provide the power as an old Nicad 9.6 battery pack can do.
The NiMH are a few years old, and are labeled as camera batteries.

I'm swapping them out for some old Nicads to see if it will perform better.