Li-Po 7.4V 550mAh suitable for all common AEP pistols with Mosfet. Can be used without modification.
Can be used e.g. for all Cyma AEP pistols in exchange.
These special pistol Li-Po batteries must be charged via Li-Po chargers / balancers (the small white plug).
Under no circumstances should these be charged using the standard Ni-MH chargers that come with the standard variants of the pistols.