Powering Clear Audio Playback: High-Performance AS751437 LiPo Battery for Portable MP4 Players
Modern portable media players keep evolving. Premium MP4 devices are no longer simple music players, but multi-functional portable gadgets supporting HD video playback, Bluetooth audio, storage expansion and long-hour outdoor use.
This trend sets stricter standards for built-in power sources. Slim, high-output lithium polymer batteries are essential to sustain all-day video and music playback for pocket MP4 players. Many device manufacturers compare li polymer battery vs lithium ion battery when sourcing power cells for compact portable media hardware.
At A&S Power, we found generic miniature lithium ion batteries fail to satisfy the continuous power draw of modern multi-function MP4 players. To fix this industry pain point, we developed the AS751437 LiPo battery — a high-capacity power solution that balances strong endurance and slim, space-saving sizing for compact MP4 player housings.
About the AS751437 Battery
The AS751437 is custom-engineered for next-gen portable MP4 media players. Compared with traditional small button cells and low-capacity lithium ion packs, this high-drain lithium polymer cell delivers steady power output, ultra-compact footprint and full safety protection, perfectly matching slim portable audio-video playback equipment.
It serves as an ideal OEM built-in power cell and replacement battery for multiple MP4 product lines:
- Slim HD video MP4 players with Bluetooth function
- Pocket lossless music MP3/MP4 players
- Student portable media players with built-in speakers
- Mini touchscreen MP4 players with USB-C fast charging
Key Specifications
| Parameter | Specification | Benefit for MP4 Players |
|---|---|---|
| Model Number | AS751437 | Customizable to fit unique MP4 internal structural designs |
| Dimensions | 7.5mm (T) × 14mm (W) × 37mm (L) | Ultra-thin profile, easy to embed within slim player casings |
| Nominal Voltage | 3.7V | Fully compatible with mainstream MP4 mainboard PCBs |
| Capacity | 350mAh (1.295Wh) | Supports 8–12 hours of continuous music or 4–6 hours HD video playback |
| Shell Material | Soft-pack Aluminum Laminated Film | Lightweight, space-efficient and anti-explosion for sealed compact devices |
Core Technical Advantages
1. High Energy Density & Ultra-Slim Design
Packing 350mAh capacity into just 7.5mm thickness, the AS751437 maximizes internal casing space efficiency. Its streamlined slim body lets designers craft lightweight, pocket-friendly MP4 players, while reserving enough internal room for touch screens, speaker modules, Bluetooth chips and USB-C circuits. This lithium polymer battery is purpose-built for thin portable audio-video gadgets.
2. Stable Voltage & Long Continuous Playback
Consistent power delivery is critical for smooth MP4 video and music playback. Even under heavy load — continuous video decoding, Bluetooth audio streaming and screen backlight operation — this li ion polymer battery maintains stable voltage output. It prevents playback freezes, screen flicker and unexpected shutdowns, protecting player circuit boards and extending device service life. When comparing lithium ion battery vs li polymer battery for portable media gear, consistent voltage stability makes our cell a top choice.
3. High Safety & Consistent Batch Quality
Safety is non-negotiable for consumer portable electronics. Featuring soft aluminum-plastic composite film packaging, the AS751437 drastically reduces swelling risks and internal cell damage inside narrow sealed MP4 casings. Integrated built-in protection circuits largely eliminate fire or short-circuit hazards during daily charging and playback. All cells are produced under strict full-traceability quality control, delivering uniform, reliable performance for mass-produced MP4 player lines.
Product Comparison: Standard Micro Battery vs. AS751437
| Feature | Standard Micro Battery | AS751437 LiPo Battery |
|---|---|---|
| Main Application | Basic low-power mini MP3 players | Multi-function Bluetooth HD video MP4 players |
| Common Capacity | 40–150mAh | 350mAh |
| Total Energy | < 0.6Wh | 1.295Wh |
| Playback Endurance | 2–4 hours music only | 8–12 hours music / 4–6 hours HD video |
| Overall Adaptability | Too bulky or insufficient runtime | Slim form + high energy density, ideal for all slim MP4 designs |
Custom OEM & ODM Integration Service
As a direct professional lithium battery manufacturer, A&S Power delivers one-stop customized battery solutions to accelerate your MP4 product development cycles:
- Custom Connectors: Compatible with JST, Molex terminals and custom wire harnesses to match your mainboard layout
- Optional Integrated BMS Protection: Built-in over-charge, over-discharge and short-circuit protection circuits
- Personalized Modifications: Adjustable dimensions, printed labels and outer packaging for special player housing structures
We also provide full professional guidance on eco-friendly, regulation-compliant lithium ion battery disposal once cells reach end-of-life.
Why Choose AS751437?
- 350mAh high capacity: Supports all-day outdoor music & video playback
- Ultra-slim compact sizing: Matches lightweight portable MP4 design trends
- Consumer-grade reliable safety: Traceable standardized mass production
- Flexible OEM customization: Shortens your product R&D timeline
- Direct factory supply: Competitive pricing + responsive global after-sales support
Get in Touch
Power your next generation portable MP4 players with dependable AS751437 lithium polymer batteries. Custom-built for slim multi-function media playback devices, it balances long runtime, full safety and pocketable compactness.
Contact our sales team today to request free product samples and complete official technical datasheets.