As long as the Volts are the same the mAh doesn't matter, its just an indicator of how long the battery will last each discharge. But some bigger capacity batteries have different connectors, so beware to check that or have a soldering iron ready. And also nimh dont have memory like nicad, and nimh is lighter but usually a little bit less able to deliver amps thouh.
I ONLY use nimh for my planes, they are a preference choice for R/C cars I think.
As long as the Volts are the same the mAh doesn't matter, its just an indicator of how long the battery will last each discharge. But some bigger capacity batteries have different connectors, so beware to check that or have a soldering iron ready. And also nimh dont have memory like nicad (having memory is BAD in this case), and nimh is lighter but usually a little bit less able to deliver amps though.
I ONLY use nimh for my planes, they are a preference choice for R/C cars I think.