3.8V 1000mAh High Voltage Li-polymer Battery for Compact Electronics
In ultra-compact electronic devices, designers face a constant trade-off between battery compact dimension, light weight, and electrical stability. Standard 3.7V batteries often limit runtime, while higher-capacity cells usually exceed mechanical constraints.
CMB engineered a slim, lightweight 3.8V 1000mAh Li-polymer battery optimized for tight internal layouts while maintaining consistent cycle life and safety margins.

Key features:
- Nominal Voltage: 3.8V
- Capacity: 1000mAh
- Max Dimension: 5 × 25 × 60.5 mm
- Lightweight design: 17g
- Charge Voltage: 4.35V
- Max Charge / Discharge Current: 1A
- Operating Temperature: -20°C to 60°C
- 300 cycles with 80% capacity retention
| No. | Item | Parameter | Remark |
|---|---|---|---|
| 1 | Nominal Voltage | 3.8V | 3.8V/Cell |
| 2 | Nominal Capacity | 1000mAh | @0.2C |
| 3 | Minimum Capacity | 950mAh | |
| 4 | Shipment Voltage | / | / |
| 5 | Initial Internal Impedance | ≤70mΩ | AC 1KHZ |
| 6 | Standard Charge Voltage | 4.35V | 4.35V/Cell |
| 7 | Standard Charge Current | 200mA | |
| 8 | Max. Discharge Current | 1A | |
| 9 | Standard Discharge Current | 500mA | |
| 10 | Max. Discharge Current | 1A | |
| 11 | Burst Discharge Current | 2A | ≤5s |
| 12 | Discharge Cut-off Voltage | 3V | 3V/Cell |
| 13 | Cycle Life | ≥500 cycles | Retention: ≥80% |
| 14 | Charge Temperature | 10°C~+45°C | Standard Charge |
| 15 | Discharge Temperature | -20°C ~60°C | Standard Discharge |
| 16 | Storage Temperature | -20°C~ +35°C | ≤3 Months |
| 0°C ~ 25°C | ≤1 Year | ||
| 17 | Weight | About 17 | g |
| 18 | Special Request |
3.7V 10000mAh LiPo Battery Pack FAQs
What are the main risks when integrating an ultra-thin LiPo battery into a compact device?
The biggest risks are mechanical tolerance, swelling control, and voltage stability. In slim designs, even small deviations in thickness or internal resistance can affect assembly yield and product reliability.
CMB addresses this by validating cell thickness tolerance, pouch reinforcement, and charge profile matching during the design stage.
Can the battery size and shape be customized to fit a tight enclosure?
Yes. For compact products, CMB supports custom pouch dimensions, thickness optimization, and tab orientation adjustments to ensure seamless mechanical integration without redesigning the device housing.
How does CMB ensure safety with a 4.35V high-voltage charging system?v
High-voltage LiPo systems require stricter control of charging parameters and cell consistency.
CMB evaluates: Charge voltage accuracy, Charge current limits and Cell aging behavior under 4.35V to ensure stable long-term performance.
What certifications can be supported for this battery type?
Depending on the target market and application, CMB can support: UN38.3, MSDS, IEC 62133 (cell level or pack level) and UL testing (project-dependent).
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.

