31 Reviews
90% (28)
0% (0)
0% (0)
3% (1)
6% (2)
48% Recommend this product (15 of 31 responses)
By Thomas S.
2 out of 3 ....
January 9, 2022
.ordered 3 18650 batteries two of them working good, the third will not take a charge! Check with meter DEAD DEAD..SO that is that?
By Victor
June 23, 2021
Hands down the best 18650 cell out there. A little pricey but pays for itself with the high capacity and long drain. You won't regret these!
By Cody
Bracken, Texas
High Performing Battery
January 25, 2021
The price of this battery proves its worth over time. They really perform as expected. Definitely not the cheapest 18650s out there, but IMO the best.
By Frank
Bear Delaware
Better than the original battery
December 13, 2020
This is the best battery that I’ve have used in my laser light it’s brighter and more accurate than the original one
By Gary
Vero Beach, Fl
April 16, 2020
Good performing battery. I have been using one rechargeable in LED flashlight for over a year almost nightly and it still retains long running time. Rated to operate the flashlight on high for one hour.
By John
The Great State of Texas
March 15, 2020
Two out of three of these have died on me after only 2 charges and are no longer rechargeable. However, kudos to Battery Junction's great Customer Service for addressing this issue.
By David
Kalamazoo, MI
Long lasting
February 7, 2020
Very high mAh, last a long time, well made
By Mark M.
Oceanside, NY
Great extra Battery that I currently charge in my new everyday Carry!
December 23, 2019
This battery holds a charge longer than the similar battery my new everyday carry came with. It has a higher mAh number than the battery that cam with my flashlight. Will purchase additional ones soon.
By Kultin
Campbell, Texas
Will buy again
November 4, 2019
I put these batteries through a work out, after a year of heavy use I only have one that the cell is fair and the rest are good. When I need some more I will definitely buy these again.
By Males I.
Severna Park, Maryland
Klarus 18GT Battery
July 10, 2019
Very good battery. Holds charge really good.
By Robert
Mundelein, Illinois
Exactly what I needed
February 14, 2019
My klarus battery died and I ordered this battery through battery junction. What can I say? It's exactly what needed at a great price.
Great 18650
January 8, 2019
Would buy more again soon
By AirThunder
Brandywine, MD
Good product, good price, fast shipping
December 31, 2018
Product arrived as described, and I saved some money buying them here.
By Bob
Very poor performance
September 9, 2018
Sorry gang, I have to break with the crowd on this one. I tried this in my Fenix HL 55 head lamp. It does not run the headlamp for the specificed duration. Not even close. Spec is 3 hours 45 minutes @ 420 lumens. This battery ran the HL 55 less than two hours. Olight and Fenix batteries with lesser capacity run the light to spec and even a bit longer. I would not recommend this battery.
By James
Martinez, GA
Good Battery
July 5, 2018
Well built, charges good, very happy.
By Darrell
Sacramento, CA
Klaus 18GT
July 4, 2018
Well made battery
By L B.
Sunnyside, Washington
Excellent performance
April 27, 2018
I recently purchased a high capacity pocket variable output and function flashlight from Battery Junction and found that it malfunctioned immediately on standard rechargeable 18650's. I sent the flashlight back and learned that I missed the notice that this unit requires high capacity, high amp 18650's. I purchased several of the recommended brand and, although the problem was slightly improved, these too failed to allow the flashlight to perform properly. So, I tried one more time with several Klarus 18GT'S and the problem not only disappeared but the flashlight has continued to now work flawlessly for an extended period much longer than I expected. I have several types of high capacity flashlights and spots using 18650's. I'll soon be replacing all the older batteries and spares for these units with the Klarus 18GT's. Well worth it.
By none
works great
April 17, 2018
This is a really good battery not sure of how long it will last. Time will tell
By Mark
Sturtevant, WI
Great 18650
March 7, 2018
This batter is the only type Iâ‚"ll use in my g35. I get fantastic run time, and full power.
ProsSo far, charges perfectly and holds power for a remarkably long tome.
By Eric
Rock Island , IL
Klarus 18GT 18650 3600mAh for XT11GT
February 4, 2018
I always have a least one spare battery for each light. Great battery and reliable power.
By jason
allentown, PA
powerful and long lasting
November 29, 2017
have 2 higher powerd Klarus lights that require these hi mah batteries and they preform well.will probably buy more to use in some of my 1000 lumen average lights and definite spares when you need it for long periods of time
Proshigh mah means better or longer runtimes
By Phil
Trenton, ohio
Powerful battery
October 17, 2017
Bought this battery to upgrade my present flashlight. This battery last longer than other batteryâ‚"s I have purchased.
By George W.
Vincennes Ind
18GT 18650 Battery
September 7, 2017
Great battery . The best for high current draw that's on the market.
By Stu
Northern New Hampshire
High cap battery
September 7, 2017
The 3400 lumen flashlight I purchased needed enough battery to keep up with the demand so I chose these batteries. I have not been in a situation yet that would test the capacity of these batteries. I don't expect to be disappointed!
ProsLargest battery available
ConsNone yet.
By Laurence
Nashua, NH
Best battery I've had
September 3, 2017
These batteries have a long run time and enable my light to reach its maxium output.
ProsRun time
By Joe
Oakville, CT
Power to spare
September 2, 2017
A great battery from a great name. Plenty of power to spare.
ProsGreat battery
By Paul
Phoenix, AZ
protect cells
July 6, 2017
I only use protected cells the in the EC4S nitecore Flashlight long run time too with the 3600mah XHP 50 led can handle this battery good
By Michael
Phoenix, NY
Best 18650 I own
June 6, 2017
The headline pretty much says it all. I won't name the other brands I own or rechargeable 18650's because I don't want to be a fanboy or trash other people's stuff but this is hands down the BEST I own in all aspects.
By Edward
Duarte, CA
Great 18650 battery
May 17, 2017
Superb. I highly recommend it. I am using it in my Fenix SD11 mule and this battery is definitely robust and powerful enough for any high drain CREE LED. Impressive and well-built, I like the shape of the non-nipple type, flat plateau style button-top. Does not hurt the positive contact spring of the Fenix SD11.
ProsGreat shape. Superb capacity and power for all high drain LED lights.
By Damon J.
Klaurus battery
March 7, 2017
This is the most powerful battery's in my collection these things r awesome my run times have increased drastically.they simply keep em shining for unbelievable hours.
Excellent Battery
November 17, 2016
Does all that is advertised ... excellent power source.
ProsMighty power in a small well engineered power source.
ConsCan run a bit hot, so be careful. That said ... built in overcharge and operating temp protection seem to be working fine.

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