8650 li‑ion battery pack, 3.7V 4000mAh, built‑in connector. Stable output, rechargeable, ideal for portable electronics, speakers, LED lights, small DIY equipment. Custom service available
No custom attributes available for this product.
✅ Short Description
✅ Key Features
- High‑capacity 4000mAh, nominal voltage: 3.7V
- Built‑in XH 2‑pin connector, easy wiring & installation
- Stable voltage output, low self‑discharge rate
- Rechargeable lithium‑ion, no memory effect
- Durable blue PVC heat‑shrink protective casing
- Compact integrated pack, ready‑to‑use, no extra assembly required
- Support custom connector, capacity and dimension upon request
- ✅ Product Specifications
Item Parameter Model 18650 3.7V 4000mAh Battery Pack Battery Type Lithium‑ion (Li‑ion) Nominal Voltage 3.7V Nominal Capacity 4000mAh Connector XH 2‑Pin Plug (as shown in picture) Charge Cut‑off Voltage 4.2V Discharge Cut‑off Voltage 2.75V Shell Material PVC Heat Shrink Tube -
✅ Applications
Perfect replacement power supply for:Portable speakers, LED strip lights, LED lamps, surveillance cameras, small medical devices, handheld equipment, IoT devices, robot models, various DIY electronic projects and other 3.7V powered devicesMade-in-Ch...
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