The Nitecore F21i is an ultra-compact fast charger specifically designed for use with Nitecore 21700 i Series batteries and includes a Nitecore NL2150HPi 5000mAh cell. The F21i can also be used as a powerbank and weighs in at just 22 grams (without battery).
Nitecore 21700 i Series batteries are a patented product by Nitecore which feature dual way output with positive and negative polarities at both ends and a high energy density. Enables a highly efficient output by minimising the loss of power due to internal resistance.
When used with a Quick Charge Adapter (available separately) the F21i can charge at 18W. Three blue indicators light to show the charging status.
Multiple protection safeguards including overcharge protection, over-discharge protection, short-circuit protection and thermal protection.
Input: USB-C: 5V-2A / 9V-2A
Output: Battery: 4.2V-4A (MAX)
USB-C: 5V-2.4A / 9V-2A / 12V-1.5A
Package includes: F21i, USB Charging Cable (USB-C to USB-C) and NL2150HPi 5000mAh 21700 battery.
- Diameter: 27.4 mm / 1.08"
- Length: 112.5 mm / 4.43" (with battery)
- Weight: 22 g / 0.78 oz (without battery)
- Input: USB-C 5V - 2A / 9V - 2A
- Battery Output: 4.2V - 4A (Max)
- USB-C Output: 5V - 2.4A / 9V - 2A / 12V - 1.5A