
Product Details
The ARB-L21-6000 is a high-capacity 21700 Li-ion rechargeable battery designed to deliver high power and extended runtimes for your devices. With a 6000mAh capacity and a 10A maximum output, this battery ensures your gear stays powered up for longer, even under demanding conditions. Built-in protection circuitry prevents short circuits, overcharging, and overheating, while pressure relief vents ensure added safety. Even after 500 charge cycles, this robust battery maintains 75% of its original capacity, guaranteeing reliable power for years to come. Compatible with Fenix HT18R, HT32, TK17, TK22R, TK30R, WF25RM, LR36R, CL27R, LD45R, PD45R ACE, PD40R V3.0, PD36R V2.0.
Features:
- Button-Top Design
- USB Type-C rechargeable battery
- Protective circuit inside the anode
- Multiple protection
- Over-charge protection
- Over-discharge protection
- Overheating protection
- Short-circuit protection
- 500 charging circles
Batery Measurement:
- Length: 77mm
- Diameter: 22mm
Delivery Information
🚚 Order Processing & Shipping Timeframes
We take pride in getting your order out quickly and efficiently.
* Orders are shipped within 24 to 48 business hours after payment confirmation.
* Our fulfillment center is located in the Province of Quebec, Canada.
📦 Standard Shipping:
Estimated delivery within 1–7 business days, depending on your location in Canada.
⚡️ Express Shipping:
Estimated delivery in 2–3 business days.
You’ll be able to choose the best shipping option for your needs at checkout, where real-time rates and estimated delivery times are shown based on your delivery address.
Customer Service
Happy to chat! Feel free to contact us using our form or chat service. Our hours of operations are from 10:00 am to 3:00 pm Eastern Time, Monday to Friday, not including Holidays.
What People Are Saying
Mitchel K.Fenix HMR65R-T V2.0 Review
Super stoked on the new V2.0 version of this headlamp. The new ratchet system is a great improvement. The update headband is fantastic. And the purple colour scheme is super cool. I’ve owned multiple Fenix lights over the past few years and I won’t consider any other brand for future purchase. Happy customer.
Martin H.Love my Nitecore Tini 3!
V-Awesome ‘lil keychain flashlight !!
Intuitive.
Very functional.
More than just a trinket ‘keychain flashlight’.
Nitecore quality.
—‘FLASHLIGHT WORLD’ is reputable, service oriented & is a decent vendor.. ..Kudos!!
Rob M.Pocket size protection
There are five reasons why I purchased this Klarus XT1C flashlight. It can be programmed for one button instant strobe. One,Defense from bears or people. Two, Offence, red light keeps you hidden at night. Three, USB-c battery usually an upgrade. Four, small pocket sized and five, Klarus is a good brand name.
Claudio C.Acebeam P20
Amazing quality. A powerful robust flashlight that suits my needs in the field of hunting and outdoor survival. Flashlight world were friendly and answered all my questions promptly. Great service.
Derek R.Another first time customer
Fenix ARB-L21-5000U Li-ion Rechargeable 21700 Battery with USB-C Charging Port.
I bought two of these batteries to add to the one that came with my flashlight.
Very happy with the original so I expect these will be the same.
Good customer service and quick delivery. Happy customer. Thanks.





















