Compatible with Logitech MX1000 MX-1000 MX-1000 M-RAG97 Wireless Bluetooth Mouse Battery Replacement 190247-1000, 190247-B000, L-LB2, NTA2253。Also suitable for DIY electronic products with 3.7-5V and less than 7.77Wh 10500mAh built-in 3-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 "-"，yellow wire is thermistor "NTC"，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. 103450 rechargeable lithium ion polymer battery, nominal voltage 3.7V, full charge voltage 4.2V, capacity 2100mAh, power 7.77Wh, size 51×34×10mm(2.007 x 1.338 x 0.393inch）(L*W*T), Weight:42g(1.481oz)，Maximum current:2A。 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 3-pin connector module. size 51×34×10mm(L*W*T)If there are any quality issues within a year, ★please feel free to contact us via email for replacement.

Package:103450 2100mAh LiPo battery x 1,heat shrinkable insulating sleeve x 1

Compatible with Logitech MX1000 MX-1000 MX-1000 M-RAG97 Wireless Bluetooth Mouse Battery Replacement 190247-1000, 190247-B000, L-LB2, NTA2253。Also suitable for DIY electronic products with 3.7-5V and less than 7.77Wh 10500mAh built-in 3-wire battery replacement.（★ Not applicable to high-power electric tools and model aircraft）

Size:51×34×10mm(2.007 x 1.338 x 0.393inch）(L*W*T)
Capacity:2100mAh
Weight:42g(1.481oz)
Maximum current:2A