2 Packs 18650 Rechargeable Battery 3.7V 3500mAh 18650 Button Top Battery for Headlights etc

My batteries came on time and I soldered them into my bluetooth speaker.Took a few hours for a full charge. Now the capacity is almost 24 hours at 1/3 volume . Up from 8-10 with original batteries.The original batteries were generic with the blue wrap just like these and they lasted 5 years.I had bought these other ones with the green label claiming really high amp hours, and they petered out after a few months , and had actually less capacity than the original batteries.Don't buy those , green label called SKY something or other, total crap .So far so good , and I would definitely go with any of the generic batteries with the blue wrap over most of the others with flashy names and unrealistic claims .

The batteries work great, fit my flashlight nicely and so far the one I've used has lasted way longer than the original battery

Works Great , Low Price , Fast Shipping

They’re pretty decent, and seem to be the best seller. When they get below 60 or 50%, they start to drain pretty quick, but overall, I can get an entire day of excessive vaping without charging.

Just like apparently every 18650 battery sold on Amazon these are falsely advertised as being a different capacity than they actually are. Many other vendors will advertise capacities that are not possible like 9900mAh, but these appeared to be real as they advertised 3500mAh which is pretty much the max you can get out of 18650s other than some really expensive newer ones that go up to 3600mAh. When tested, these came in well short of the advertised capacity. One tested at 2136mAh and the other tested at 1782mAh. Combined that is barely over what one of them was advertised to be. They don't last long and don't hold a charge. Don't waste your time buying these or any other 18650 batteries on Amazon. Do yourself a favor and go buy them at a hobby shop or vape shop where they have real ones at the advertised capacity.

This is my 2nd order for these rechargeable batteries. At this time I have not used them, however I am currently using the second battery from my original purchase. The batteries work well and last along time between charging.

Great batteries.The original in hair clippers for my dog would die too quickly.Each one of these lasts 3 times as long.

Quick delivery.