F4 Flex Power Bank Charger

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F4 Flex Power Bank Charger

Ultrafast 1000mA. Charge your 18650 batteries AND your mobile devices on the go!

4-SLOT POWER BANK & BATTERY CHARGER:
Power up your next adventure with the NITECORE F4, a four-slot battery charger that also serves as a power bank and battery organizer. 2 USB outputs allow you to quickly charge and power devices with a maximum output current of 2A.

LCD DISPLAY & SMART CHARGING:
LCD shows key information including voltage, charging current, charging volume and battery slot. The smart charging independently controls each slot.

ULTRA-COMPACT & ULTRA-SAFE:
Ideal for backpacking, this is the perfect charger for the rugged nature-lovers needing a lightweight power source and battery charger. A sliding cover helps organize batteries and enables you to carry batteries safely.

How fast does it charge?

Battery Type (Capacity)	One at a time 1000mA	Two at a time 1000mA	Four at a time 500mA
18650 (3500mAh)	3hr 30min		7hr
18650 (2600mAh)	2hr 36min		5hr 12min

Charging duration uses this formula:
Battery Capacity (mAh) / Charger Output Current (mA) = Hours

What's in the box

1x F4 Flex Charger
1x USB charging cable

Order with Batteries

F4 charger (without batteries) - $69
F4 charger + 4x NL1826 (2600mAh) batteries - $185
F4 charger + 4x NL1835HP (3500mAh) batteries - $265

Specifications
Input	DC 5V - 2A
Capacity	60Wh (MAX)
Output	4.2V±1% (Battery) / 5V±5% (USB)
Output current	21A, 40.5A (Battery) / 2*2A (USB)

Dimensions
Length	113.4mm
Width	86.1mm
Height	27mm
Weight	122.5g (without batteries and power cord)

Compatible with
Li-ion/IMR: 18650

"Not only does it save space in my pack, it also doubles as a battery organizer."

by Henry G.

What happens after payment?

You will receive a purchase receipt through Paypal after payment.
Your order will be processed within the next working day and we will email you a tracking code once your package has been shipped.

When will I receive my lights?

Deliveries in Singapore will take up to 4-6 working days by Courier.

Returns and warranty

If our lights don't work the way they should, let us know and we'll do our best to get you sorted. 1-year repair warranty.

User manual

Download in PDF

We believe in this product so strongly that we're giving you a 60 days money back guarantee! If for whatever reason you are unsatisfied with your purchase, ship the entire package back to us with your Order #number and we'll give you a full refund!

100% NO-RISK MONEY BACK GUARANTEE

F4 Flex Power Bank Charger

Customer Reviews

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