Features: Rechargeable lithium polymer battery. Capable of maximum continuous discharge rates up to 50C. 3pcs 7.4V 500mAh lipo batteries with 3 in 1 charging cable, convenient and economical. Easy to plug in and take out; high quality and portable to carry. Compatible with EMAX Babyhawk, Makerfire Armor 67, XF90, 70-120mm racing drone.