ASG 11.1V 1500mAh LiPo Stick Battery. Designed to fit in AEGS that take longer style stick batteries with a thin fit.  Very specifically fits some airsoft gun models that are hard to fit.  Should fit in most M4 guns, rear stocks, and other special guns.  It’s a pretty long battery so check your length.  Has a mini Tamiya connector.    Charge on the 4-prong adapter.  Do not charge through its tamiya connection (output only).  Use a lipo charger only.

Dimensions: 7 inches long x 19mm x 16.5mm