Matrix High Performance 11.1V Stick Type Airsoft Li-Ion Battery (Configuration: 2600mAh / 15C / Deans)

"This is a great battery, and works really well too, but for some weird reason, when using the battery for 7 months, it gave out on me and completely stopped working in the middle of the game. It didn't die out like when your battery is out of charge but it just started giving me problems in the game then like 5 mins after it just gave out. Tried charging it when i got home but it wouldn't charge and just made a squealing noise for some weird reason. I charged my other Li-Po batteries fine on the same charger but this one just wouldn't seem to charge. But other than that this is a great battery and made my gun into a 22 RPS beast on the field. (Echo 1 CPW) Makes your trigger response much quicker and is what you expect out of a battery. Overall though because of its longevity of life i wouldn't recommend this battery sadly. Thanks for reading.