The Technik TR2148 is a protected, rechargeable Li-ion battery of type 21700, featuring high performance and safety characteristics. It is an ideal choice for high-power devices such as flashlights, portable devices, and other high-consumption electronics.
Main Features:
- Type: 21700 (21 mm diameter, 70 mm length, cylindrical design)
- Capacity: 4800 mAh (nominal)
- Voltage (nominal): 3.7 V
- Maximum charging voltage: 4.2 V
- Energy: 17.76 Wh
- Design: Flat Top (no button on the positive terminal)
Protection:
- Overcharge
- Over-discharge
- Short circuit
- Overcurrent
The built-in protection increases the battery’s lifespan and safety, ensuring safe use in most compatible devices.
Technical Specifications:
- Power size: 21700
- Series: TECHNIK Rechargeable Battery
- Nominal voltage: 3.7 V
- Capacity: 4,800 mAh
- Rechargeable: Yes
- Height: 70 mm
- Diameter: 21 mm
- Capacity
- 4800 mAh
- Size
- 21700
- Type
- Li-ion
- Voltage
- 3.7 V
Important information
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.