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Nitecore F21i iSeries Battery Charger and USB-C Powerbank
NITECORE F21i iSeries Battery Charger and USB-C Powerbank


 
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Price: $19.95


Availability: Usually Ships in 24 Hours
Product Code: CHG-NITE-F21I


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DESCRIPTION USER MANUAL
 

NITECORE F21I At-A-Glance

  • Multiple protection safeguards
  • Ultra compact and lightweight
  • EPDM elastic band
  • Touch sensor power display

Included in the Box

  • F21i
  • USB-C charging cable

iSeries Battery Charger & Powerbank

The Nitecore F21i turns your iSeries battery such as NL21500HPi into a minimalist battery charger and power bank. The F21i features a USB-C port that functions both as a battery charger when connected to a power adapter and as a power bank when connected to a device. The 3-dot blue indicator beneath the USB port flashes to indicate the charging progress. Supporting Quick Charge and Power Delivery (QC, PD) protocols, F21i delivers an incredible 18W of fast charging output. The F21i is a mini multi-functional battery charger and power bank as well as a must-have backup battery and accessory for any iSeries tactical flashlight.

Tough and Light

The F21i is ultra-compact, durable and safe to use. It is about 2 inches long when stowed away and only 4 inches long when fully stretched. Its rigid battery cap is made from fire retardant polycarbonate. It also comes with the same comprehensive safeguards as the other Nitecore chargers: overcharge protection, overcurrent protection, over-discharge protection, short-circuit protection, thermal protection, and overvoltage protection. Always be prepared by pairing a F21i with a iSeries battery for emergency power.

TECHNICAL SPECIFICATIONS

Input USB-C:5V⎓2A / 9V⎓2A
Output Battery:4.2V⎓4A (MAX) USB-C:5V⎓2.4A / 9V⎓2A / 12V⎓1.5A
Dimensions L-4.43"xW-1.08"xH-1.08"
Weight 0.78oz

Compatible Power Sources

BATTERY TYPE SIZE NOMINAL VOLTAGE COMPATIBLE
Nitecore 21700 i Series 21700 3.6 Y (Recommended)

*Battery Not Included
Nitecore F21i
Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 16 Write a review »


  0 of 0 people found the following review helpful:
 
5 of 5 Great little charger August 1, 2022
Reviewer: Kevin Tompkins from Texas  
This thing is SMALL.  I mean shirt pocket small.  And fast.  I charge several of the “i” series 5000 mah batteries that go along with my P10ix.  It not only charges quickly, but it’s there in case I need reserve power because it acts as a power bank.  I just love the convenient size.

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  0 of 0 people found the following review helpful:
 
5 of 5 Convenient June 30, 2022
Reviewer: Tony Snider from Wichita, KS United States  
Very convenient to have.

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  0 of 0 people found the following review helpful:
 
5 of 5 Get at least 1 June 18, 2022
Reviewer: Tony Snider from Wichita, KS United States  
I have 3 so far.  1 for each spare battery of the 3 pairs of flashlights I have.  Good for charging a battery while you use the fresh battery in the flashlight.  Also good for emergency power.  In each set of flashlights I will have one of these.

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  0 of 0 people found the following review helpful:
 
3 of 5 Cables are poor quality May 28, 2022
Reviewer: Bob Linn from Clovis, NM United States  
I ordered two F21i chargers. The batteries and charger are great. The cables on the other hand are poor quality. The metal ends get stuck in the phone and rip out of the cable. CS said I can send the charger back, so good on them for that but I want the chargers. I've ordered new cables on Amazon so this is a very expensive charger overall. All of their other USB-C cables have been great.

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  0 of 0 people found the following review helpful:
 
5 of 5 State-of-the-art Battery Charger. January 23, 2022
Reviewer: Jerry Davis from Lemooree, CA United States  
This Charger takes all Battery's that you have. It has four slots, Two for fast charging and two for regular charging. But it is a Hi-Tech charger. I am so glad I purchased it. Everyone that owns a Nitecore flashlight needs this charger.

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