2-Pack 3.7V 250mAh 402030 Rechargeable Lithium Polymer Battery for DIY Electronic Products

3.7V 250mAh 402030 Rechargeable Lithium Polymer Replacement Battery for DIY 3.7-5V Electronic Product, Bluetooth Headset, Watch 2-Pack

2-Pack 3.7V 250mAh 402030 Rechargeable Lithium Polymer Battery for DIY Electronic Products

Specifications: * Brand: OXWINOU * Battery Part Number: 402030 * Type: Replacement Li-Polymer Battery * Reachargeable: Yes * Chemistry: Ni-MH * Voltage: 3.7V * Capacity: 250mAh * Size 4×20×30mm(0.157×0.787×1.22inch)(T*W*L). Widely used for Aircraft,speaker,Tachograph Car DVR ,Bluetooth Earphone, mobile emergency power supply, MP3 ,MP4, GPS tracker, remote controllers, smart watch, MID, PDA, pos machines, interphone, voice recorder, leaning machine, backup powers, electric toys and other electronic devices Please replace your old broken battery with branded new OXWINOU rechargeable battery! Noted:Please double check the position of "+, -" before to order this battery. Please mind the direction of ‘ + ’red and ' - ' black wire when install the battery.You could watch YouTube videos for installation instructions.If you think our tools is not convenient to use,you could use your own tools.

Key Features

• ✅ This product is suitable for battery replacement of DIY 3.7-5v electronic products, 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.
• ✅ 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.
• ✅ 402030 rechargeable lithium ion polymer battery, nominal voltage 3.7V, capacity 250mAh, power 0.92Wh, size 4×20×30.5mm(0.157×0.787×1.22inch)(T*W*L).
• ✅ 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.
• ✅ It can prevent overcharge, overdischarge, overcurrent, and short circuit.

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