DK64,

You're right; it IS something to think about. I believe I'll check both of mine next time I cycle.

BTW, I still use an Ace VoltMaster II, which has been calibrated with a known voltage source, to double-check my rx batteries. The real advantage of the GEM is it lets you know if a pack is about to puke while you're flying.

But it does sound like yours was not working right.

Steve