DC 3.7V 550mAh 303450 Rechargeable Lithium Polymer Battery Suitable for DIY 3.7-5V Electronic Products with Built-in 2-Wire Replacement and LED Lights

This battery is suitable for DIY electronic products with 3.7-5V and less than 2.035Wh 550mAh built-in 2-wire battery replacement.（ Not applicable to high-power electric tools and model aircraft） Please note that the specifications and polarity of the connector are based on the product display image,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. Rechargeable lithium-ion polymer battery 303450, rated voltage 3.7 V, full charging voltage 4.2 V, capacity 230 mAh, power 2.035 Wh, size 51 x 34 x 3 mm (2 x 1.34 x 0.12 inches) (L x W x D), weight: 10.7 g (0.377 oz), maximum current: 0.7 g. .55A。It can prevent overcharging, over-discharge, over-current and short circuit. It consists of a large capacity A+ lithium battery, a Japanese Seiko IC overcharge and an overcurrent short circuit protection board, a high temperature resistant silicone cable 3302-26 and an original 2-wire JST pitch 1.25 mm connection module. If there are any quality issues within a year, please feel free to contact us via email for replacement.