DC 3.7V 350mAh 602030 Lithium Battery for VXI BlueParrott B350 XT B450 B550 B350XT B450XT B550XT Bluetooth Headset,DIY 3.7 5V Electronic Products with Built in 2 Wire Replacement

Compatible with VXI BlueParrott B350-XT B450-XT B550-XT B350XT B450XT B550XT Bluetooth Headset,Compatible with Vantrue Dash cam Battery Replacement。It can also be used in other 3.7-5V electronic products with power less than 1.29Wh (350mAh).（ Not applicable to high-power electric tools and model aircraft） Please note that connector specifications and polarity are based on the product display image. The red wire is the positive terminal “+”, and the black wire is the negative terminal “-”. Do not reverse the connection! Some products' original batteries may lack plugs, have incompatible plugs, or exhibit mismatched polarity. No worries—you can simply cut the wires and use the included heat-shrink tubing to connect the wires of the same color from the old plug. 602030 rechargeable lithium ion polymer battery, nominal voltage 3.7V, full charge voltage 4.2V, capacity 350mAh, power 1.29Wh, size 6×20×31mm(0.236×0.787×1.22inch）(T*W*L), Weight:7g(0.247oz)，Maximum current:0.3A。 It can prevent overcharge, overdischarge, overcurrent, and short circuit. It‘s consists of of large-capacity A+ lithium battery, Japanese Seiko IC overcharge and overcurrent short circuit protection board, 3302-26 high temperature resistant silicone cable, and genuine JST Pitch1.25mm 2-pin connector module. If there are any quality issues within a year, please feel free to contact us via email for replacement.