2 NiMh in series

More frustration -

Just ran the 4s and it was hella fast - for less than a minute. When I had it on the charger (Hyperion 0606i) it only charged for ~40 minutes. It's a 4s/5350. I set the charger to 5350 maH and it doesn't even come close to this charging rate (I read the lengthy post on this issue). I didn't have it hooked up the the balancer because it naturally has a different plug than what's on the included hyperion balancer tray.

Now, to summarize. My two 7.2 NiMh's in series only runs for ~2 minutes and now my 4S only runs for ~1 minute. When I'm running the NiMh's, I have the MM set on "No Limit" and when running the 4S, I have the cutoff set on "12V". I've calibrated the MM, but no dice.

Surprising, my 2s is the ONLY battery that runs for >15 minutes.

Oh, I took new pics of my "series" plug for the NiMh's.