502540 3.7v Battery 550mAh for Sena SMH5 Motorcycles Bluetooth Headset Battery Replacement Sena SMH5-FM SMH5D SPH10H-FM Battery Part Number (P/N): ICP40/25/40P fits Nextbase 312GW HD Recording DVR Cam

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