The Fenix ARB-L18-3400 is a high capacity 18650 Li-ion rechargeable with a protection circuit in the anode to help prevent short circuits, over charge/discharge and over heating. The battery also includes pressure relief vents which expel waste gas in the rare case of an internal short circuit preventing an explosion.
This new battery only can be recharged to 3.7 volts. The other three older batteries can be recharged to 4.2 volts. All charging was performed on a Fenix 4-battery charger at the same time.
5star Flashlight/Battery Life. Hearty/
Reliable. Bought mine after a 25
Year Use Of a customer at the sales
Counter who’s testimony told me Fenix is the best. I did buy Two and
So happy I did.
I needed a replacement battery for my TK20R and a rechargeable battery for my TK16. Now with the single port charger and 2 batteries I should never be without a good light.
The Fenix ARB=L18-3400 is a great battery. Be careful of counterfeits sold elsewhere for the same or less money. The counterfeits fail early. I will only buy these batteries from Fenix.
Ben (verified owner) –
This new battery only can be recharged to 3.7 volts. The other three older batteries can be recharged to 4.2 volts. All charging was performed on a Fenix 4-battery charger at the same time.
Dianne (store manager) –
Warranty will contact you to see what’s up.
Mike (verified owner) –
Lasts a long time on one charge
Richard Peabody (verified owner) –
Batteries were shipped super fast and have performed beyond expectations.
Thomas K. (verified owner) –
5star Flashlight/Battery Life. Hearty/
Reliable. Bought mine after a 25
Year Use Of a customer at the sales
Counter who’s testimony told me Fenix is the best. I did buy Two and
So happy I did.
Bryan P. (verified owner) –
These batteries last a while and recharge fast.
Donald MCSHAN (verified owner) –
It’s a good battery
Anonymous (verified owner) –
Have only had the battery for a short period of time but it seems to be holding up as expected.
Mark Fassio (verified owner) –
The battery work but when I turn it on bright it gets dimmer and dimmer like I was using the button but I’m not.
Dianne (store manager) –
I will have someone from warranty contact you
Seth (verified owner) –
Love that I can use the same battery for a long freaking time!
Anonymous (verified owner) –
The batteries are excellent just like the previous ones.
john p. (verified owner) –
does what I want
Robert G. (verified owner) –
I needed a replacement battery for my TK20R and a rechargeable battery for my TK16. Now with the single port charger and 2 batteries I should never be without a good light.
ERIC (verified owner) –
Run time is great
Mathew A. (verified owner) –
Much better than cr123s. Holds a charge for a long time.
Anonymous (verified owner) –
My favorite 18650
ernest (verified owner) –
Awesome!
William (verified owner) –
The Fenix ARB=L18-3400 is a great battery. Be careful of counterfeits sold elsewhere for the same or less money. The counterfeits fail early. I will only buy these batteries from Fenix.
Carlos Gomez (verified owner) –
The best battery out there
Rose B. (verified owner) –
These batteries are great. I always like to have extras, just in case. And these work great.
Kenneth B. (verified owner) –
Great bstteries. Last a good work time