Lumenier LUM-1300-4-60 1300mAh 4s 60c Lipo Battery Each battery comes with a black vinyl cap to protect the XT-60 discharge adapter during transport and from the elements. We also use the vinyl cap to indicate a fully charged battery at the field The dimensions are sized to easily fit in all of Lumenier's air-frames including the QAV250. This is our recommended battery for any 250 sized mini quad running on 4s Length: 70mm. Width: 34mm. Height: 32mm. Weight: 153g. C-Rating: 60c - Burst 120c Connector: XT60