HXJNLDC 3.7V 310mah 502030 Battery for VXI BlueParrott B250-XT Bluetooth Headset Battery Replacement dashcam Nextbase Dash cam 402G 412GW 512G Cobra 840 Keychain cam 808 Small Camera C3,C11 16

Red wire is positive, black wire is negative, Do not reverse-charge or reverse-connectreverse。 Do not use the battery with conspicuous damage or deformation！ Do not use leaky batteries! Do not put the battery into fire, water or get wet! Do not drive a nail into the battery, Strike it by hammer, or tread it Avoid charging near a fire or in direct sunlight