Re: What batteries for the controller?

#16356
PandaBear
Participant
  • Posts: 1866
Quote:
Originally posted by z-beam on 23October2002

although the voltage is important the milliamperage (mAh) is the factor to be carefull of. some ni-cads at dickies give 1200 mAh and that is a problem if your still powering your bits on single ni-cad (standard) batteries UNLESS you used energiz%r max or ultra d%racells on the first charge. some thing about cell memory and limitations. the % batteries run at 800mAh supposedly.

Huh? :smiley5:Sorry, you aren’t making sense.

Capacity of the AAs don’t make much difference to charging, apart from how many charges you can make before they’re flat. Voltage however, does affect how fast the car charges and the end-voltage of charging.

Rechargeables (nickel+metal) are chemically defined 1.2V; whilst carbon-zincs are 1.5V. Lithiums are usually 3V per cell but with a different metal electrode, they can be made to ~1.6V. Nicad AAs go up to ~1000mAh whilst NiMH are 1800-1900 nowadays.

Generally you’ll find that alkalines will last longer than even NiMH. Lithiums last even longer but they’re still more expensive than the equivalent multiple of alkalines.