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Factory-Direct | High-Quality | Multi-Application
3.7V 800mAh Rechargeable Li-Polymer Battery
slim, extremely lightweight batteries based on Lithium Ion chemistry.
Competitive Price, Factory Outlet, Fast Delivery, Meet ISO GB, CE, and UL Standards.
Reliable Power, Built to Last
Our 3.7V 800mAh lithium polymer battery (model: 383562) is made with genuine high-quality cells. Each one comes with a built-in explosion-proof safety valve, evenly distributed electrolyte, and a multi-layer high-temperature separator to ensure safety and long life. The internal resistance is low, giving you stable power output and excellent performance over hundreds of charge cycles.
Smart Protection, Peace of Mind
Every battery includes multiple layers of intelligent protection — overcharge, over-discharge, short circuit, overcurrent, overvoltage, and high-temperature protection. It also features a voltage balance module, reverse connection protection, and automatic power-off when overloaded — keeping your devices and users safe at all times.
Low Self-Discharge, High Efficiency
With high energy density and low self-discharge, this battery stays ready even after long storage. It performs well across a wide temperature range, maintains stable voltage output, and provides reliable energy for your products.
Durable and Eco-Friendly
This Li-ion polymer battery is safe, stable, reusable, and pollution-free. It has no memory effect, so you can charge or discharge it anytime without worrying about capacity loss.
Versatile Use
Perfect for MP3/MP4 players, GPS units, Bluetooth headsets, electric toys, power banks, medical devices, and other smart or portable electronics.
Customization Available
We offer full OEM customization — choose your preferred shape, size, capacity, or connector to match your product design perfectly.
Technical parameters of polymer lithium battery pack: (specifically can be designed according to customer requirements-voltage/capacity/size/circuit)
| Specification | Details |
|---|---|
| Model | Apsenx-383562 |
| Cell Voltage | 3.7V |
| Battery Pack Voltage | 3.7V |
| Voltage Range | 2.5V – 4.2V |
| Cell Capacity | 850mAh |
| Battery Pack Capacity | 850mAh |
| Power | 3.145Wh |
| Battery Pack Size | 3.8 × 35 × 62 mm |
| Cycle Life | >500 cycles |
Maximum Discharge Current:
800mA (current can be increased or decreased according to customer requirements)
Instantaneous Discharge Current:
1600mA (current can be increased or decreased according to customer requirements)
Maximum Charging Current:
0.2–0.5C (current can be increased or decreased according to customer requirements)
Charge and Discharge Cycles:
3.7V 800mAh Li-ion Polymer Battery — Long Life & Smart Protection
Durable Performance — Over 500 Charge Cycles
This rechargeable 3.7V 800mAh Li-ion polymer battery is designed for long-lasting use, with a cycle life of more than 500 times. It delivers steady power and reliable performance for your electronic devices.Built-in Protection Features
Our batteries come with a smart protection circuit to keep your devices and users safe.
Main Chip:
We use high-quality protection ICs, and the chip scheme can be customized depending on your project needs.Overcharge Protection:
When the battery reaches 4.2 ± 0.05V, the circuit automatically stops charging to prevent overcharging and extend battery life. (Custom voltage settings available.)Over-discharge Protection:
When voltage drops to 2.5 ± 0.1V, the discharge path is automatically cut off to prevent deep discharge damage.Short-circuit Protection:
If the battery terminals are shorted, the protection circuit reacts instantly (within 5–50µs) to stop the current flow and prevent damage.Overcurrent Protection:
When excessive current is detected, the circuit cuts off within milliseconds to protect the battery and connected devices.Excellent Temperature Performance
- Discharge Temperature: -10°C to 60°C
- Charging Temperature: 0°C to 40°C
- Storage:
- Up to 1 year: -20°C to 25°C
- Up to 3 months: -20°C to 45°C
- Up to 1 month: -20°C to 60°C
This wide temperature range makes it suitable for different environments and applications.
Vibration & Durability Test
Each battery passes strict vibration testing:
- Frequency: 10Hz → 50Hz → 10Hz
- Amplitude: 1.5mm
- Duration: 45 minutes (no load condition)
Ensuring stable and safe performance during transport and use.
Quality Assurance
Every battery meets national safety and performance standards.
All Li-ion polymer batteries are fully tested, calibrated, and ready to use before leaving the factory.Flexible Customization Options
We support full OEM/ODM customization:
- Capacity & Voltage: from 1500mAh up to 3000mAh or more.
- Wire Length & Connector Type: tailor the design to fit your device.
- Branding & Packaging: add your logo or custom packaging for wholesale orders.
Get a Quote or Sample
Looking for a trusted manufacturer of compact Li-ion batteries?
We offer wholesale, bulk orders, and custom battery solutions to fit your project.Email us: sales@anpsglobal.com
Our team will get back to you with pricing, samples, and lead time details.3.7V 800mAh Li-polymer Battery FAQ
Can this battery be customized for my device?Yes — we can adjust size, capacity, voltage, discharge current, connector, and protection IC according to your project requirements.
What devices commonly use the 3.7V 800mAh Li-poly battery?It is widely used in MP3/MP4 players, GPS trackers, Bluetooth earphones, handheld smart devices, medical electronics, and compact power banks.
How long is the expected battery lifespan?The battery delivers 500+ cycles under standard conditions, depending on charge rate and operating environment.
What protections are included in the battery pack?Built-in IC provides overcharge, over-discharge, over-current, short-circuit, over-voltage, reverse-connection, and high-temperature protection.
What is the recommended charging method?Use a constant-current/constant-voltage (CC/CV) charger at 0.2C–0.5C until 4.2V. Fast charging can be enabled if OEM design requires.
Can you provide samples before bulk orders?Yes. Samples are available, and we also support pilot runs for new projects before mass production.
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