3.7V 503040 Battery 620mAh for cozmo Vector robot replacement,SkyBell HD WiFi Video Doorbell replacement,Flysight FPV Watch、 wireless speaker replacement

Compatible with COZMO Vector robot SkyBell HD WiFi Video Doorbell Flysight FPV Watch wireless speaker Battery replacement。Also suitable for DIY electronic products with 3.7-5V and less than 2.3Wh 620mAh 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. 503040 rechargeable lithium ion polymer battery, nominal voltage 3.7V, full charge voltage 4.2V, capacity 620mAh, power 2.29Wh, size 5×30×41mm(0.197×1.181×1.614inch）(T*W*L), Weight:13g(0.46oz)，Maximum current:0.6A。 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.