18650 Rechargeable Battery,Soonbuy 3.7V 3500mAh Protected Lithium-ion Batteries 4 Packs for Flashlight Torch

Very good AUTHENTIC batteries, unlike a lot of fake ones on the market today. No 18650 lithium ion battery has a capacity of more than 3500 mAh, and yet you see so many advertised as having 5000 mAh or even 9800 mAh. Any 18650 that claims to have a capacity of more than 3500 mAh is fake.. The ultimate test is in the weight of the battery. A genuine 18650 should weight anywhere between 42 and 50 grams. This is because their cells are that much heavier than the cels used in fake batteries. Anything that weights less than 42g is fake. I weighed these and they all weighed above 44 grams, confirming their authenticity. Great buy for the price.

Needed some button tops for my fairly big led flashlight. As soon as I pulled them out of the box, these were the test results. While overrated as expected, pleased with value.

Probably good batteries. Because of the button top, they don't fit in my electronic cigarette. That's what I get for not reading the manual and product description carefully.

One cell died in a few charges other one lasted 4 charge cycles. So only 2 out of 4 lasted longer than a few weeks. Avoid at all costs...

So far so good. Packaging wasn't the best but they worked as advertised.

Tried several other manufacturer battery's ,.... these do really well in my solar power garden lights. Best I've used.

these are the best bang for your money they all work great and i bought 1 more 4 battery pack of them. best deal on amazon.

No problems with them so far. Charged and used multiple times. Price was very good.