What's mAh mean with batteries?
I want to get a few 7.2v batteries for my remote control car. Some range from 1000mAh to 5000mAh. I currently have 2200mAh. Would I have a longer time driving it with a higher mAh? What's it mean and how does it work? Would a higher mAh ruin my car as well?
My cars:
Tyco Super Fast Traxx. Just fixed it today and excited as shit that it works after so many years.
Radio Shack Samurai
Radio Shack Tempest
All three take 7.2v batteries.
I currently bought the last two. I'd also like to know if I could consecutively use any of those cars with different batteries; if it'd effect it at all and if it'd effect the batteries.
It's a lot to answer but if you know these answers, thanks.
Ahmad:
mAh means milli-Amp hours. A milli-Amp is 1/1000th of an Amp, so 1000 mAh is the ability of the battery to deliver 1000 milli-Amps for one hour or you could say 1-Amp hour. 2200mAh means the ability to deliver 2.2 Amps for an hour. If you use a 7.2 V battery that's delivering about 16 watts non-stop for an hour. The voltage may drop below a usable level for the car before the battery has completely discharged. That's a pretty big battery for an RC car. The higher the number the more current the battery can deliver and the longer it will last before it runs down. I do not know the current draw specs for the cars you have, but you get the idea. The minimum operating voltage would be useful to know for each of your cars. After they run the down to the minimum car speed you wll accept, use your voltmeter to measure the voltage across the battery string. That would be a good way to compare the cars and decide if you need more mAh for a desired car to keep it going.
Good luck and have fun - 73 from the Fisherman
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