18650 Rechargeable Battery 9900mAh Button Top 2 Pack 3.7V Li-ion Battery for LED Flashlights Headlamps

Great seller, price item, communication, promt safe deliver. I highly recommend this seller. A+++++ 5 Gold Stars.

This product is a scam. There are no 18650 size Li Ion batteries with capacities higher than around 3500mAh (milli-Amp hours). Part of the scam is to lure you to buying it and then refusing refund if you opened the package. DO NOT BUY. Look at all the other reviews on similar products, as well as videos testing this exact battery. The findings are shocking.

So I was given 4 flashlights by my mom because the took non standard batteries. I was a bit skeptical but took them home anyways. Obviously needing batteries I ordered these. For flashlights at the very least they are great. The power the provide gives my flashligh brightness I have not seen before. Down side and the reason I am giving it a four star is. Needed new charger for it and the batteries are kind of a one trick pony. If I had been given 1 flashlight I would have just tossed the flashlight but now I am curious what else I can use these for.

Wish I could give less than one star. Battery’s came pre charged. After they ran dead either one or both won’t charge now. Heck it could be the charger. Reach out to who ever about my problem but no response. So look else where for your battery needs.

After discharging and charging fully with a professional charger, these "18650" (in name only) batteries hold about 600mah. Literally the most mAh an 18650 can hold is about 4,000 and those are quite expensive. These are D-tier cells with a wrapper that says 9800 on them.

Did not perform as advertised. Also got hot when used in a headlamp.

tested at 2400mah not 9900 Don't buy

The current maximum capacity of the 18650 battery can reach 3500mAh - 3600mAh.The highest capacity for an 18650 battery is the NCR18650G which clocks in at 3600mAh. A high capacity cell that is readily available is the 3500mAh.