7.4V 300mAh LiPo Battery for Compact Control Modules
In compact control systems and portable electronics, space limitations and low power consumption requirements often conflict with stable dual-cell voltage output. Off-the-shelf batteries frequently struggle with inconsistent discharge behavior, limited lifecycle, and integration constraints in tightly packed enclosures.
To support reliable operation in space-constrained designs, CMB developed a 2S 7.4V 300mAh LiPo battery optimized for low-current stability, lightweight construction, and predictable long-term performance.

Key features:
- 2S Configuration: Stable 7.4V output for compact electronics
- Lightweight Design: Only 15g for portable applications
- 300+ Cycle Life: ≥80% capacity retention
- Safe Operating Window: 0–65°C discharge
- Integration-Ready: Connector and cable options available
| No. | Item | Parameter | Remark |
|---|---|---|---|
| 1 | Nominal Voltage | 7.4V | 3.8V/Cell |
| 2 | Nominal Capacity | 300mAh | @0.2C |
| 3 | Minimum Capacity | 285mAh | |
| 4 | Shipment Voltage | / | |
| 5 | Initial Internal Impedance | ≤180mΩ | AC 1KHZ |
| 6 | Standard Charge Voltage | 8.4V | 4.35V/Cell |
| 7 | Standard Charge Current | 0.2A | |
| 8 | Max. Charge Current | 0.3A | |
| 9 | Standard Discharge Current | 0.3A | |
| 10 | Max. Discharge Current | 0.6A | |
| 11 | Burst Discharge Current | 0.9A | ≤5s |
| 12 | Discharge Cut-off Voltage | 6.0V | 3V/Cell |
| 13 | Cycle Life | ≥300cycles | 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 |
| -20°C~ +35°C | ≤1 Year | ||
| 17 | Weight | About 15 | g |
| 18 | Special Request |
7.4V 300mAh LiPo Battery Pack FAQs
Is this battery suitable for compact devices with strict weight limits?
Yes. This pack is designed for lightweight systems where space and weight control are critical. Structure and wiring can be adjusted to match tight internal layouts.
Can the battery be optimized for low-current, long standby operation?
Yes. The discharge profile can be tuned for stable low-current output to support long standby or intermittent-use devices.
Can protection circuits be added without increasing size significantly?
Protection solutions are selected based on current and voltage needs, with minimal impact on overall dimensions.
Is this battery ready for certification-related projects?
The design can be aligned with UN38.3 and IEC requirements, and documentation support is available during certification preparation.
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.

