11.1V 4000mAh LiPo Battery for Compact Industrial Devices
Compact industrial and portable electronic devices often require a balance between sufficient runtime, stable discharge, and strict space limitations. This 11.1V 4000mAh LiPo battery was developed to deliver reliable power while fitting into constrained mechanical designs.

Key features:
- 4000mAh capacity for extended operating time
- Stable 2A continuous discharge
- Compact size: max 130 × 50 × 20 mm
- 300 cycles with 80% capacity retention
- Wide operating temperature range
| No. | Item | Parameter | Remark |
|---|---|---|---|
| 1 | Nominal Voltage | 11.1V | 3.7V/cell |
| 2 | Nominal Capacity | 4000mah | @0.2C |
| 3 | Minimum Capacity | 3900mAh | / |
| 4 | Shipment Voltage | / | / |
| 5 | Initial Internal Impedance | ≤90mΩ | AC 1KHZ |
| 6 | Standard Charge Voltage | 12.6V | 4.35V/cell |
| 7 | Standard Charge Current | 1A | |
| 8 | Max. Charge Current | 2A | |
| 9 | Standard Discharge Current | 2A | |
| 10 | Max. Discharge Current | 4A | |
| 11 | Burst Discharge Current | 6A | ≤5s |
| 12 | Discharge Cut-off Voltage | 9.0V | 3V/cell |
| 13 | Cycle Life | ≥300cycles | Retention: ≥80% |
| 14 | Charge Temperature | 10°C~+45°C | Standard Charge |
| 15 | Discharge Temperature | 0°C ~+60°C | Standard Discharge |
| 16 | Storage Temperature | -20°C~ +45°C | ≤3 Months |
| 0°C~ +35°C | ≤1 Year | ||
| 17 | Weight | About 210-230 | g |
| 18 | Special Request | / | / |
11.1V 4000mAh LiPo Battery Pack FAQs
Can discharge current be increased if the device load changes?
Yes. We can adjust cell selection and C-rate design based on peak load requirements, provided thermal limits are validated.
How do you manage thermal performance in enclosed devices?
We conduct temperature rise testing under maximum discharge conditions. If necessary, structure optimization or thermal insulation design can be provided.
Can connectors and cable length be customized?
Yes. Wire length, connector type, gauge, and insulation standard can be customized to match assembly requirements.
How do you ensure consistent performance across production batches?
We use cell grading, impedance matching, and capacity sorting before pack assembly. Each pack undergoes aging and function testing.
Can the battery be certified for export markets?
Yes. UN38.3 is standard. Additional certifications are arranged according to the final application region.
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.

