I got this battery for my JG m16 A3, and am very impressed. Aside from the obvious increased longevity, this battery also increased the FPS and probably doubled the ROF. It fits, snug, into the JG's full stock; so, be advised, it is a large type battery. Takes a decent amount of time to charge, after all it is 5000mAh, so I highly recommend a smart charger so you don't accidently overcharge it. The only cons to this battery are those that can be expected due to its size and capacity.
- Ridiculously large mAh
- Best price for mAh
- Slight increase in FPS
- Major increase of ROF
- Fits inside a full stock
- Long time to charge, that is to be expected.
- Large type pretty much requires a full stock to accommodate its size.
- Will ware out your gearbox and motor faster than a stock battery, due to increased ROF.