The Technik rechargeable Li-Ion battery in the 21700 format with a capacity of 4800 mAh and a voltage of 3.7 V is ideal for high-power devices such as flashlights, portable electronics, and appliances with higher current draw. Thanks to integrated protection electronics, it offers higher safety and a longer service life.
The Technik 21700 battery is designed to reliably power devices that require stable performance. It stands out for its high energy capacity and safe operation in compatible devices.
Built-in protection (PCB) helps protect both the battery and your device:
- protection against overcharge
- protection against over-discharge
- protection against short circuit
- protection against overcurrent
The 21700 format (cylindrical cell) is a popular choice for modern high-performance flashlights and other devices with high current draw.
Specifications
- Brand
- Technik
- Battery type
- Li-Ion (lithium-ion)
- Format
- 21700
- Shape
- Cylindrical
- Dimensions
- diameter 21 mm, length 70 mm
- Capacity (nominal)
- 4800 mAh
- Nominal voltage
- 3.7 V
- Maximum charging voltage
- 4.2 V
- Energy
- 17.76 Wh
- Protection
- yes, against overcharge, over-discharge, short circuit, and overcurrent
