The Zeee 6200 mAh 7.4 V Lithium-ion Polymer (LiPo) battery is a high-quality power source designed for RC cars, FPV planes, and boats. brand new, never used, box slightly opened only to check the battery specifications. this item was sent to me in error by a retailer. the seller refunded me and let me keep the item, so i am selling it here as it's not needed. thanks for watching.