3400mAh 18650 Battery ORBTRONIC Protected Button Top Rechargeable High Performance Li-ion 3.7V for High Power Flashlights (Pack of: 2X Batteries)

Great Batteries. I have fallen to cons on here batteries claiming to be 2000 or 3000 mah when they are really less. so I bought a machine to check the mAh, All over 3400. Thanks.

After many failed attempts, I finally located some batteries for my SCUBA diving flashlights that will not only last the entirety of my dive, but provides enough power to produce an ultra bright beam. Previously, I was using some $10/2 batteries in a $50 dive flashlight, and the light beam was so weak my friend's $20 alkaline-battery powered flashlight was over-powering two of mine (add to that the insult of running out of juice after only 30-40 minutes).With these Orbtronic 18650 batteries, I can enjoy 60+ minute dives in the darkest depths without any worry. Overall, the batteries provided ultra-bright light beams for two approximately 45-minute dives (in the same $50 dive light). Charge time was like most others: full after charging overnight.Though there was an initial sticker-shock with the purchase, after 4 weeks of use with my dive lights, these batteries were well worth every penny; I was so satisfied with my purchase, I would definitely purchase these again if I get more diving flashlights.

I bought this battery for my nitecore headlight because after throwing money at all these other ultra"fire" 16850 batteries that do not hold a charge, holds a weak charge, or failing to hold a charge after 6 months of use. These batteries so far I have charged and drained these batteries several times. In my 540 lumen nitecore headlamp I tested it on high at continuous use and it powered my headlamp for an hour and 50 minutes. That is far longer than any of the other fire based batteries out of China.

My Flashlight lasts 30 to 45 minutes with cheaper 18650 Batteries (2500 Lumens Flashlight) & I constantly had to change batteries in the middle of Walk or exercise. After researching for a couple of weeks, I came across at least 4 independent sites that recommended Orbtronics as best available 18650 batteries in the market.I debated for a while whether I should spend $60 for these batteries or not. But I finally gave in and bought a set of four. I have had these batteries for almost a year now and they last 4 times longer than my cheaper 18650 batteries that I bought 10 of them for $25. Same 2500LM flash lights runs about 3.5 hours on these batteries.4x 3400mAh ORBTRONIC Protected 18650 Battery Rechargeable Cells Li-ion 3.7V High Capacity for High Power Flashlights-18650 Battery Holders Included

after watching a review on YouTube comparing these to JETBeam batteries, i had some concern that these might be too snug to fit my Nitecore flashlights. however the opposite turned out to be true. the circumference is slightly less than the Nitecore equivalent, and on my Nitecore SRT7 flashlight the Orbtronic 3400mAh outperformed my more expensive Nitecore NL189 3400mAh by 5~6%.as if better fit, and more juice for less money still wasn't enough, they throw in two free 18650 battery cases. these are by far the best value 18650 3400mAh style batteries i've bought.

These are now my go to batteries when I buy 18650 batteries. They store the amount of power listed and have good run times. The length even with the PCB/protection is not too long and will fit most if not all devices with spring contacts.I have also ordered the 3500 mAh version, same quality with a little higher storage capacity and a higher voltage output.The wrapping of this battery is first rate. No sloppy construction, the PCB is attached solidly and centered. I recommend and will myself, be buying more of these in the future. I have been giving these as gifts along with Nitecore and ThruNite flashlights that use these. My NiteCore P36 really benefits from these and the 3500mAh batteries.I also like Olight batteries that came with the lights I ordered, but prefer these Orbtronics a bit more.

I have purchased a variety of other brands and rated capacity 18650 batteries and while they worked and seemed okay, I was becoming skeptical that they were NOT the good ones. So I looked around much more closely than other buys and bought these ORBOTRONIC units. Certainly more expensive than those others, but after using them a time or two, it became very clear that these actually last in a way that totally meets expectations. I have come to realize that buying those others that claim really high mah ratings - well - save your dollars for these and you will be much happier for sure. I got them for my high power flashlight and the old cheapies would flash or dim farily early in usage but these maintain output longer than any of the others. They came in these nice cases so I now have a collection that I can keep neatly packaged as I rotate them. I will never go back to those cheap batteries again.