Hey so a while back, me and my cousin got 5 guns for $250, a CYMA, 2 Echo1's, and a G&G. (And a GBB M9) The guy we bought them from was running a tenergy 12v on the G&G, and I recently traded a pellet gun for a stock pouch, foregrip, and the 12v. What Im wondering is if its usable in a practical sense, if I should upgrade it beforehand, etc. My other question is I recently got my 614 simple- MOSFET'd and from what they said, it limits the power that goes through the circuit. Sooo Im wondering if running the 12v would be okay in the 614 since its Mosfet'd. (On a side note last time i went out on the field my 614 would randomly stick on full auto; I.e. I would pull the trigger once and it wouldnt stop until I moved the selector switch to semi and safe multiple times, or I had to unplgu the Battery, Is this a common issue with Mosfets or is this really bizzare occurrence?) Theoretically, I'd run it in my G&G Raider I picked up a week back from a colleague. All and all, Whats best, in your opinion. 9.6's and other [non-lipo] batteries, or Lipos, and what I should do to [if even bother] run the 12v.