ORIGINAL: Jester241
I wanna run a backup rx battery in case my rx battery fails. I got a couple questions though. I'll have to use 2 different batteries,but all are nimh's. 1) Can I use one 6v battery and one 4.8v battery(yeah I doubt it). 2) Can I use 2 different nimh 6v batteries,but with different mah's?
Thanks.....
Different voltages: No
Different capacities: Yes. I've done this on a couple planes and found each battery was drained proportionally. For example, each battery would be drained by say 40% of it's capacity at the end of the day. (not exact numbers, just an example)
I'd also use a separate switch for each battery to add redundancy there too.