- 804050 rechargeable lithium ion polymer battery,★ size 2 x 1.574 x 0.314 inch(51×40×8mm) (L*W*T),nominal voltage 3.7V, full charge voltage 4.2V, capacity 2100mAh, power 7.77Wh, Weight:1.16oz(33g)，Maximum current:2.1A。 It can prevent overcharge, overdischarge, overcurrent, and short circuit..
- 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.。
- This battery is applicable to electronic products with DIY 3.7-5V less than 7.77Wh 2100mAh.（ 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 suitable for power tools and model aircraft）。
- It‘s consists of of large-capacity A lithium battery, Japanese Seiko IC overcharge and overcurrent short circuit protection board, 3302-24 high temperature resistant silicone cable, and genuine JST Pitch 2.0mm ★2 wire connector module.。
- If there are any quality issues within a year, ★please feel free to contact us via email for replacement.
