11.1V 4050mAh LiPo Battery for Instrument Equipment
This 11.1V 4050mAh LiPo battery was customized to meet strict dimensional and electrical requirements in professional instruments.
For precision instruments, the battery is more than just a power. It can affect how stable the device runs, how accurate the data is, and the overall user experience. Many equipment manufacturers face problems during development, such as batteries that do not fit the device design, unstable voltage causing system issues, short runtime, or battery heat affecting sensitive components. Standard batteries also may not meet special requirements for connectors, PCM/BMS, or certifications.
Compared with off-the-shelf batteries, custom LiPo batteries can better fit the device structure and performance needs, helping the equipment run more reliably and reducing maintenance issues later on.

Key features:
- Balanced 4050mAh capacity
- Compact size: max 85 × 30 × 11 mm
- Stable 2A discharge
- Long-term cycle reliability
- Suitable for precision equipment
| No. | Item | Parameter | Remark |
|---|---|---|---|
| 1 | Nominal Voltage | 11.1V | 3.7V/cell |
| 2 | Nominal Capacity | 4050mah | @0.2C |
| 3 | Minimum Capacity | 3848mAh | / |
| 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 200-220 | g |
| 18 | Special Request | / | / |
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11.1V 4050mAh LiPo Battery Pack FAQs
How do you guarantee voltage stability for sensitive instruments?
Cells are impedance-matched before assembly. We also simulate actual working current to validate voltage consistency.
Can the battery size be slightly adjusted to fit existing housing?
Yes. Minor dimension adjustments are feasible through cell layout modification and insulation redesign.
What protection features can be integrated?
Protection PCB parameters such as overcharge, over-discharge, and overcurrent thresholds can be customized based on system design.
What documents are provided before mass production?
Specification sheet, test report, impedance data, and compliance documentation are provided for approval.
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.

