scheduleOur stores and their opening hours
Localisation
home navigate_next Electronics and lights navigate_next Batteries navigate_next Fenix Li-Ion 21700 rechargeable battery, 5 000 mAh
Fenix

Fenix Li-Ion 21700 rechargeable battery, 5 000 mAh

25.90 €
Found a better price?
Add to the list contact_supportProduct question
In-store pickup
From 28.01.2026 (Wednesday) Check availability
chevron_forward
delivery_truck_speed
By courier to your home Express courier delivery GLS Express courier delivery DPD
Delivery method on Thursday 29.01.2026
location_on
At collection points
Delivery method on Thursday 29.01.2026
replay
Extended return option up to 100 days More info
Rating (4)
Show all reviews
5/5
shopping_cart
more than 50 customers
have already purchased this product

Fenix ​​Li-Ion 21700 rechargeable battery

The Fenix ​​Li-Ion 21700 rechargeable battery with a capacity of 5,000 mAh (V2.0) offers high performance, long life, and advanced safety protection. Thanks to modern technologies and protective electronics, it is ideal for powerful LED lights and other devices requiring a reliable power source.
Product features
Advanced internal and electronic protection against overheating, overcharging, deep discharge and short circuit
Low self-discharge rate, no memory effect
Designed for selected Fenix ​​LED flashlights (not compatible with 18650 models)
Product details
Weight 73.5g
Range 5000 mAh
Dimensions 21.5mm x 76mm
Nominal voltage 3.6 V
Battery life More than 500 charging cycles
Maximum charging current 5 A
Maximum current input 7.5 A
Recommended chargers Fenix ​​ARE-X1 V2.0
Fenix ​​ARE-A2
Fenix ​​ARE-D1
Fenix ​​ARE-D2
Fenix ​​ARE-A4
FC2, SC1, VC8
Diameter 21.5 mm
Length 76 mm
Disclaimer do not discharge below 2.5 V, do not short-circuit, do not throw into fire or water, do not insert upside down, use an adequate charger
product ID 192086
Product rating  (4 ratings)
5/5
(4 ratings)
(4 ratings)
(0 ratings)
(0 ratings)
(0 ratings)
(0 ratings)
How do you rate the product?
Add a review
Help others, earn points and shop better prices thanks to the loyalty system
Reviews verified Verified purchases
Add rating
comment Product question

There are currently no questions

Fenix
Batteries Fenix
Fenix is a recognized brand in the field of lighting, known for their high-quality and reliable products. Founded in 2004, Fenix has built a solid reputation for manufacturing a wide range of flashlights, headlamps, lights, and other lighting solutions for a variety of outdoor, tactical and everyday uses. With their commitment to innovation, durability and reliability, Fenix has become a trusted name in the lighting industry.
Contact information
Shopping FAQ

All the answers to questions about delivery, payment, security, returns, warranty and much else.

Similar products
You can try these searches
Batteries, Fenix
You may find these products complementary
All products from the category
Bicycle multi tools
Show all
Fenders and mudguards
Show all
Bike socks
Show all
Sports nutrition and cosmetics for cyclists
Show all
Why shop with us?
Find out what makes us special
1 000 000+ orders

We are the largest cycling e-shop in Slovakia, verified by 100,000+ customers.

Unique customer service

We are available via e-mail, online chat, phone or in person at our MTBIKER stores.

We actively support the cycling community in Slovakia

Thanks to your order we can support cycling development.

Secure payment methods

The payment process is safe and we offer you a wide range of options.

Loyalty system

We will reward you for your purchase and also for quality contributions in the MTBIKER forum, e-shop, trips and photo gallery.

MTBIKER centre and showroom

Visit our store with a pump-track and trail access or our showroom in a historical bulding in central Bratislava.

navigate_beforeprevious navigate_nextďalší
keyboard_arrow_up