Description
This battery is applicable to electronic products with DIY 3.7-5V less than 2.035Wh 550mAh.（ mobile energy storage, power supply, LED light, wireless Bluetooth game headset, outdoor video and audio electronic scale, GPS Watch recorder, e-book, USB Fan tester, dash cam controller, mouse and keyboard）（★ Not applicable to high-power electric tools and model aircraft）.Please carefully compare the polarity of the connector before use,★the red wire is the positive "+" and the black wire is the negative "-"，Do not reverse-charge or reverse-connectreverse. ★The primary battery of some products has no plug or mismatched plug or mismatched polarity. It doesn't matter, you can cut and solder the plug directly or use our heat shrinkable insulating sleeve to connect the same color wire..902030 rechargeable lithium ion polymer battery, nominal voltage 3.7V, full charge voltage 4.2V, capacity 550mAh, power 2.035Wh, ★size 30.5×20×9mm(1.2×0.787×0.354inch）(L*W*T), Weight:11g(0.4oz)，Maximum current:0.5A。 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 Pitch 1.25mm ★2 wire connector module..If there is any quality problem within one year, ★please contact us by email at any time and replace it free of charge..Please carefully compare the polarity of the connector before use,the red wire is the positive "+" and the black wire is the negative "-"，Do not reverse-charge or reverse-connectrevers。 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
