4PCS Rechargeable 18650 Battery Canserin 9800mAh TR 18650 3.7V Li-ION LED FLASHLIGHT EXPERT Ship From USA CA

I had to buy once just to see if they were anywhere close to 9800mah. As suspected, each cell (total of 12) tested out at less than 2000mah.If it seems to good to be true, it probably is......

9800 mAh capacity seems too good to be true...and it's not! I measured the capacity of four of these batteries, purchased two weeks ago and freshly charged. My 18650 battery charger gives capacities of 1100 to 1200 mAh, and my own discharge measurements give capacities of 1000 to 1100 mAh. This product is being falsely marketed.

The capacity of battery is only 1100mAH to 1200mAH. I checked it. I am going to return the product....DO NOT PURCHASE. IT IS SCAM

These last a little bit longer than my standard 2200 mhA batteries; not 9800 mhA.

Something is not right here... These 18650 don't fit in my atomizer, and if you look at the picture, you will see why.

No tiene la capacidad que se indica en la venta

Capacity is a flat out lie. These were outperformed by 2000mah batteries. I would estimate them to be somewhere around 1200mah.

I have several other brands of 18650 batteries acquired from Amazon over the past two years. The ratings vary, and the actual run time of the batteries is not always correlated to the mAh rating.I even found one of these 18650 type batteries hiding in a rechargeable drop-light, where the original battery was defective. It was soldered in, and I replaced it with a 6,800mAh battery. That battery is a higher rating than the 3,000mAh original battery, but I get half of the actual run-time of the original battery, when it was working.My testing has been brief and un-scientific. The main basis for my timing on my bluetooth speaker / headlight combo is that my typical ride is 90 minutes, although I do a 2 hour ride once per week. This new battery lasted through 2 full rides, including one where I went a few extra miles, so roughly 3.5 hours, give or take a few minutes. It quit about half a block from my house when returning from the second ride.My LED flashlight test consists of checking the time, and turning the light on high power, and letting it shine on the ceiling next to my desk while working. I then note the time when it becomes too dim to see on the ceiling.I cannot comment on the actual mAh rating of the battery. I can tell you that this 9,800mAh battery runs flashlights and other devices considerably longer than some 5,000mAh and 6,800mAh batteries I purchased from Amazon.My MicroMall 5,000mAh batteries outlast the 6,800mAh UltraFire in LED flashlights and a Bluetooth Speaker / headlight combo I use on my bicycle.After deep cycling (full discharge), and complete recharging these 9,800mAh batteries, I got over four hours continuous run time on a LED flashlight, where the 5,000mAh will do just over an hour, and the 6,800mAh will only do about 45 minutes.The 9,800mAh battery ran my Bluetooth speaker & headlight (flashing mode) for about 3.5 hours. The 5,000mAh battery will only run it for 2.5 hours, and the 6,800mAh battery will only run it for about 90 minutes.I use a single-slot EBL charger to recharge my 18650 batteries because the dual-slot charger that came with one of my LED flashlights doesn't seem to charge the batteries fully. They all seem to last much longer when I use the EBL charger.Only downside is these 9,800mAh batteries take several hours longer to recharge than the other batteries I have used. It probably makes sense that they would, but I was starting to think there was something wrong with the first one because it took so long.