2PCS 18650 Rechargeable Battery 3.7 Volt Lithium 9900mAh Large Capacity Flat Top for Flashlights Headlamps

First of all, the seller was great at responding back as soon as they could. Sometimes it was tricky due to time differences but regardless seller still answered every inquiry. My package got lost in the mail and the seller immediately offered a refund or re-shipment of the product. Seller was also kind enough to throw in some extra batteries for the inconvenience.Product works great! Haven’t had any issues at all, the batteries are great quality. Battery life is excellent and lasts forever! Will definitely be repurchasing in the future. Price point is pretty good too compared to other places I have purchased similar batteries at.

Excellent product. still using them today

Died within the week. Would not recommend. Only got two uses from them.

I have used these batteries for a year. The capacity is ok, their durability is good for all except one. The battery capacity is decent and it takes around 35 minutes to charge full.The 18650 battery cases will take these batteries and they fit snug.

They really put out, and they are rechargeable. They are much more useful than smaller AA or AAA batteries. I am very happy with them.

This works so much better than what came in my flashlight. Will definitely be purchasing again if the need arises.

My hope was to replace a bad battery in a Dewalt battery pack. But when I opened it up, I discovered battery was welded in place, and would have to break plastic housing. The batteries supplied by the vendor came almost next day in a very secure package, and were completely charged, and ready to go.

So... they're cheap.That's about the only saving grace.Yeah, they work - but their manufacturing process either produces inconsistent results or some of the batteries were sitting around collecting dust for well over a year. When they arrived exactly half worked just fine - got a good several hours out of them... but the other half would die in 30 min, tops. To make things even more annoying, there didn't seem to be any rhyme or reason to how they were packaged as no single four-pack sleeve were consistently good or consistently bad.