Small but powerful, the KBT 302030PL 3.7V 150mAh Li-Polymer rechargeable battery delivers efficient energy storage for compact electronics and industrial applications. Designed with built-in protection and high discharge capabilities, it is ideal for devices requiring consistent performance in a lightweight and compact package.
1. Overview of KBT 302030PL Li-Polymer Battery
The KBT 302030PL is manufactured by KBT Battery, a trusted brand in the lithium battery industry. Its specifications make it suitable for portable electronics, IoT devices, medical equipment, and small industrial tools.
Key Specifications:
- Model: KBT-302030PL
- Size: 20 x 30 x 3mm
- Capacity: 150mAh
- Nominal Voltage: 3.7V
- Maximum Voltage: 4.2V
- Discharge Cut-off Voltage: 2.5V
- Continuous Discharge Rating: 2C
- Weight: 3.5g
- Protected: Yes
- Rechargeable: Yes
This compact design ensures easy integration into devices where space and weight are critical.

2. Why Choose a Li-Polymer Battery Like KBT 302030PL
High Energy Efficiency in a Small Package
Despite its small size, the KBT 302030PL delivers stable voltage output and reliable energy density, ensuring consistent device performance.
Built-in Protection for Safety
The battery features protection circuitry, safeguarding against:
- Overcharging
- Over-discharging
- Short circuits
This makes it a safe and reliable choice for sensitive electronic devices.
Rechargeable for Sustainability
With rechargeable capabilities, this Li-Polymer battery supports multiple charge-discharge cycles, reducing operational costs and environmental impact.

3. Applications of KBT 302030PL Li-Polymer Battery
The compact and protected design makes the KBT 302030PL ideal for:
- Portable Electronics: Miniature gadgets, Bluetooth devices, smart wearables
- IoT Devices: Sensors, trackers, small controllers
- Medical Devices: Monitoring tools, handheld diagnostic equipment
- Small Industrial Tools: Compact power tools and devices requiring high reliability
4. Advantages Over Standard Batteries
| Feature | Benefit |
|---|---|
| Compact Size (20x30x3mm) | Fits small devices where space is limited |
| 150mAh Capacity | Provides reliable energy for low to medium power devices |
| Built-in Protection | Enhances safety and device longevity |
| Rechargeable | Reduces replacement frequency and operational cost |
| Lightweight (3.5g) | Ideal for portable and wearable electronics |

5. Conclusion
The KBT 302030PL 3.7V 150mAh Li-Polymer rechargeable battery is a highly efficient, compact, and protected solution for modern electronics. Whether for portable devices, IoT systems, medical equipment, or small industrial tools, it combines reliability, safety, and sustainability in a tiny package.
For engineers and businesses looking for a dependable miniature Li-Polymer battery, the KBT 302030PL stands out as a trusted choice.
❓ FAQ
Q1: What is the capacity of KBT 302030PL Li-Polymer battery?
A: The KBT 302030PL has a capacity of 150mAh and a nominal voltage of 3.7V.
Q2: Is the KBT 302030PL battery protected?
A: Yes, it comes with built-in protection circuitry against overcharging, over-discharging, and short circuits.
Q3: Can the KBT 302030PL be used in portable electronics?
A: Absolutely. Its compact size (20x30x3mm) and lightweight design (3.5g) make it ideal for mini gadgets, IoT devices, and wearable electronics.
Q4: How many times can the KBT 302030PL battery be recharged?
A: As a Li-Polymer rechargeable battery, it supports multiple charge-discharge cycles, offering long-term reliability and cost efficiency.