Matrix High Performance 7.4V Stick Type Airsoft LiPo Battery (Model: 1000mAh / 20C / Deans & Long Wire)

"WHEN these work they are great. So far I've had three and two inflated on the charger and third won't hold a full charge. Nothing against evike as their customer service was great in trying to resolve the issues. It's just that these batteries are garbage. Pay the extra cash and get a better battery.