.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?

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!

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.

This is the best battery that I’ve have used in my laser light it’s brighter and more accurate than the original one

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.

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.

Very high mAh, last a long time, well made

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.

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.

Very good battery. Holds charge really good.

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.

Would buy more again soon

Product arrived as described, and I saved some money buying them here.

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.

Well built, charges good, very happy.

Well made battery

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.

This is a really good battery not sure of how long it will last. Time will tell

This batter is the only type Iâ€â"¢ll use in my g35. I get fantastic run time, and full power.

I always have a least one spare battery for each light. Great battery and reliable power.

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

Bought this battery to upgrade my present flashlight. This battery last longer than other batteryâ€â"¢s I have purchased.

Great battery . The best for high current draw that's on the market.

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!

These batteries have a long run time and enable my light to reach its maxium output.

A great battery from a great name. Plenty of power to spare.

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

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.

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.

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.

Does all that is advertised ... excellent power source.