G&P 7.4V 1200mAh 20C Stick Type Lipo Battery (Fits M4 buffer tube / Standard Deans)

"I've had this battery for about a week now, I must say it's a great little battery. The one problem is that it doesn't fit my Thompson. I just attached to the side of the stock using a few rubber bands. It defiantly made my Thompson shoot a lot faster and the trigger response was also increased.

Pros:
Charges fast
Lasts a long time
Increases ROF and trigger response (compared to NiMh battery)

Cons:
Didn't fit the battery compartment in my gun

"Great battery, My E&L is shooting around 390, with the high torque motor and good shim work these batteries are giving me a nice zap. no clue on ROF, that wasn't my concern. the Trigger Response is great. PLUS THEY COME WITH DEANS.


TIGHT fit in my E&L. Great battery.

"This is a great battery for the price, it fits in the buffer tubes pretty nicely if you stuff it down in there, if you use a lipo alarm with it you'll have more trouble with it but it should still fit. This battery uses the standard deans size connector, from what i have gathered the red connectors are standard and the black ones are the mini type connectors, the GP863B battery is the same as this but it uses the black mini deans connector, I don't think evike sells that one however.