Lumenier LU-1800-4-35 1800mAh 35c Lipo Battery Powers small crafts that require a compact battery, but need high amperage that the XT60 connector can provide Comes with a black vinyl cap to protect the XT-60 discharge adapter during transport and from the elements Fits all of Lumenier's air-frames including the QAV250, QAV400, QAV500, and QAV540G