Adapter+Battery or Battery Only
Ground Shipping Only. No Priority Mail or Express Mail.
Lower 48 States Only. No AK, HI, PR, AS, GU, MP, VI, MH, FM, PW. No APO/FPO/DPO - AA, AE, AP.
No International Orders
The Nitecore® F21i Minimalist Power Bank is one of the lightest 5000 mAh USB-C power banks out there. 1458 mAh/oz and 29% lighter than Anker. This ultralight unit is a combination of a revolutionary Nitecore 21700 iSeries battery with the Nitecore F21i power bank adapter. Charge your phone or recharge the battery, with the same adapter. Perfect for shorter adventures or take along an extra battery for longer trips.
The main body is made of lightweight, durable polycarbonate. The battery is securely held in place with an EPDM elastic band which is UV and ozone resistant. High performance, without all the extra weight.
F21i supports 2-way 18W fast charging with Quick Charge QC, Power Delivery PD, and more protocols automatically detected. Multiple protection safeguards ensure safe and efficient charging.
Tap the USB-C port to turn on the blue power level indicators. 3 dots for 100%, 2 dots 70%, and 1 dot 30%. During battery charging or USB output, a white indicator will turn on to indicate access of Fast Charging Mode if the external device is equipped with fast charging protocol.
During charging, the blue indicators will flash to display the power level. When fully charged, all three blue indicators will be steady on.
F21i is specifically designed to charge Nitecore iSeries batteries with dual polarities on both ends. It is NOT compatible with other batteries. DO NOT use with other batteries. Because the positive and negative terminals are close to one another, when storing an iSeries battery loose in your pack or pocket you must install the included battery end caps to avoid contact with metal objects that could cause arcing.
Specifications
Cell: Li-ion iSeries battery only
Materials: Polycarbonate body, EPDM rubber strap
Capacity: 5000 mAh, 3.6 V (18 Wh)
Capacity Density: 1458 mAh/oz (51.4 mAh/g)
Energy Density: 5248 mWh/oz (185 mWh/g)
Input: USB-C, 5V-2A | 9V-2A
Output
Battery: 4.2V-4A max
USB-C: 5V-2.4A | 9V-2A | 12V-1.5A
Recharging Time
Fast Charger: 2.5 hours approx., 18W-2A charger, USB-C to USB-C cable (charger not included), charges 80-90% in 90 min
Dimensions
Power Bank (DiaxL): ø1.08 x 4.43 in. (ø2.7 x 11.3 cm)
Charging Cable: 6 in. (15.2 cm) long
Weight
F21i + Battery: 3.43 oz (97.2 g)
F21i only: 0.78 oz (22.1 g)
Battery only: 2.65 oz (75.1 g)
Battery End Caps: 0.12 oz (3.5 g) pair
Charging Cable: 0.19 oz (5.4 g)
Operating Temperature: 14 to 104°F (-10 to 40°C)
Storage Temperature: -4 to 140°F (-20 to 60°C)
Included – F21i + Battery
1x F21i Adapter
1x NL2150HPi Li-ion iSeries Battery, 5000 mAh
2x Battery end caps
1x Charging Cable, USB-C to USB-C, 6 in. (15.2 cm) long
Included – F21i only
1x F21i Adapter
1x Charging Cable, USB-C to USB-C, 6 in. (15.2 cm) long
Included – Battery only
1x NL2150HPi Li-ion iSeries Battery, 5000 mAh
2x Battery end caps
User Manual
In no event shall Litesmith, LLC be liable for any direct, indirect, punitive, incidental, or special consequential damages, to property or life, whatsoever arising out of or connected with the use or misuse of its products.