3.7V 350mAh Lithium Polymer Battery AS751437
3.7V 350mAh rechargeable lithium polymer battery with PCM protection and Molex-compatible connector. Compact 39x13x7mm size ideal for TWS charging cases, portable fans, Bluetooth devices, and smart wearables. OEM/ODM customization available.
Description
Model AS751437 – Compact LiPo Battery with Molex Connector
Voltage: 3.7V | Capacity: 350mAh (1.295Wh) | Size: 39.0mm × 13.0mm × 7.0mm
The AS751437 is a compact rechargeable lithium polymer (LiPo) battery designed for portable electronics that require a balance of capacity and size. With a typical capacity of 350mAh and a slim 7.0mm profile, this cell delivers reliable power for mid-range portable devices.
Featuring an integrated Protection Circuit Module (PCM) and a pre-attached HDGC 51146H-1.25-3P connector (Molex-compatible) with UL3302 28AWG wire leads, the AS751437 offers built‑in safety against over‑charge, over‑discharge, and short circuits. Its lightweight design (approx. 6.1g) makes it an ideal power source for devices where weight and reliability are critical.
Technical Specifications
| Battery Type | Lithium-ion Polymer Battery |
| Part Number | AS751437 |
| Nominal Voltage | 3.70V |
| Typical Capacity | 350mAh (1.295Wh) @ 0.2C discharge |
| AC Impedance (Cell) | ≤160mΩ |
| AC Impedance (With PCM & Wire) | ≤200mΩ |
| Charge Voltage | 4.20V |
| Standard Charge Current | 70mA (0.2C) |
| Max. Charge Current | 350mA (1.0C) |
| Max. Discharge Current | 350mA (1.0C) |
| Discharge Cut-off Voltage | 3.00V |
| Dimensions (L × W × T) | 39.0mm × 13.0mm × 7.0mm |
| Connector & Wire | HDGC 51146H-1.25-3P (Molex-compatible) / UL3302 28AWG / 45mm |
| Weight | Approx. 6.1g ±2.0g |
| Protection Circuit | Built‑in PCM (Over‑charge, Over‑discharge, Short‑circuit) |
| Operating Temperature | Charge: 0~+45℃ / Discharge: -10~+50℃ |
| Storage Temperature | 25℃ ±2℃ |
Core Advantages
- ✔
Compact Form Factor: 39×13×7mm size with 350mAh capacity – ideal balance of power and footprint for portable devices. - ✔
Integrated PCM Protection: Built‑in protection circuit ensures safe operation and extends battery life. - ✔
Pre-attached Molex-compatible Connector: HDGC 51146H-1.25-3P with 45mm UL3302 28AWG leads – ready for easy integration. - ✔
Lightweight: Approx. 6.1g – ideal for weight‑sensitive portable devices.
Perfect For Applications
TWS earphone charging cases, Bluetooth headsets, portable MP3 players.
Portable glucose meters, smart temperature patches, portable pulse oximeters.
Smart bracelets, fitness trackers, portable sensors, GPS asset trackers.
Mini portable aroma diffusers and other low-power compact gadgets.
Customization Services (OEM/ODM)
We offer full flexibility to adapt the AS751437 to your project requirements:
- Connector Customization: Replace HDGC 51146H-1.25-3P with JST, Molex, or custom connectors to match your PCB design.
- Wire Length & Gauge: Adjust wire length (standard 45mm) or gauge to fit your assembly.
- Thickness & Capacity Options: Available in various thicknesses for different capacity requirements.
- Branding: Add your logo or specific labeling to the battery shrink wrap.
