3.7V 500mAh Li-poly Battery for Medical & Interactive Devices
Mid-capacity Li-poly batteries are commonly used in medical and interactive devices that require balanced runtime, compact size, and reliable discharge performance.
This 3.7V 500mAh lipo battery solution was engineered to deliver higher current output without increasing footprint, enabling consistent device behavior under load.
Key features：
- Increased capacity to 500mAh while maintaining compact size
- Supported 1A maximum discharge for short power bursts
- Defined 0.25A standard / 0.5A max charge current for charging safety
- Stable cell matching ensured consistent performance across batches
- Verified 300 cycles with 80% capacity retention
| No. | Item | Parameter | Remark |
|---|---|---|---|
| 1 | Nominal Voltage | 3.7V | 3.7V/cell |
| 2 | Nominal Capacity | 500mah | @0.2C |
| 3 | Minimum Capacity | 450mAh | / |
| 4 | Shipment Voltage | / | / |
| 5 | Initial Internal Impedance | ≤100mΩ | AC 1KHZ |
| 6 | Standard Charge Voltage | 4.2V | 4.2V/cell |
| 7 | Standard Charge Current | 0.25A | |
| 8 | Max. Charge Current | 0.5A | |
| 9 | Standard Discharge Current | 0.25A | |
| 10 | Max. Discharge Current | 1A | |
| 11 | Burst Discharge Current | 1A | ≤5s |
| 12 | Discharge Cut-off Voltage | 3V | 3V/cell |
| 13 | Cycle Life | ≥300 cycles | Retention: ≥80% |
| 14 | Charge Temperature | 10°C~45°C | Standard Charge |
| 15 | Discharge Temperature | 0°C ~+65°C | Standard Discharge |
| 16 | Storage Temperature | -20°C~ +45°C | ≤3 Months |
| 0°C~ +35°C | ≤1 Year | ||
| 17 | Weight | About 10 g | / |
| 18 | Special Request | / | / |
3.7V 500mAh LiPo Battery Pack FAQs
What is the main difference between 450mAh and 500mAh LiPo batteries in real applications?
The 500mAh version provides longer runtime and slightly higher discharge capability. This is often required when devices have intermittent power peaks or extended operating time.
How does CMB manage discharge stability under higher load?
CMB optimizes internal resistance control and defines safe discharge limits during the design phase. This ensures stable voltage output without stressing the cell.
Can this battery support devices with short high-current pulses?
Yes. It supports higher peak discharge compared to smaller-capacity cells. For pulse-heavy applications, CMB can further tailor the cell selection and protection parameters
What certifications can CMB support for this battery pack?
CMB can support common certifications such as UN38.3, MSDS, and shipment-related compliance. For medical or region-specific requirements, we assist customers during the certification preparation stage.
How early should customization requirements be defined?
The earlier the better. Providing electrical, mechanical, and regulatory requirements at the beginning helps avoid redesign and delays.
Tailored Customization
Our design team can create custom battery designs for just about any device or machine.
Timely Delivery
Our efficient production and distribution process gets your product delivered in a timely manner.
Quality Guarantee
We stand by our products and guarantee you’ll be happy with your purchase.
