2 Pack 3.7 Volt 18650 Rechargeable Battery 3400mAh 18650 Li-ion Battery for Flashlights, Headlamps, Doorbells, RC Cars (Flat Top)

Charges and has a long life for each charge

great

Got them but not the ones I needed. Just a bit short. Ordered more but a bit longer.

Great price, great delivery time.

Very disappointed. Not a direct replacement for the Model 18650 as indicated on line and on the packaging. It overheated in my flashlight while on charge and destroyed my flashlight. It was on charge for a couple of hours and I started smelling burnt plastic. When I opened it up, I realized the replacement battery was not a good choice. The new battery is about 1/8" shorter and has some type of cover over the center outer ring that would not let it make proper contact. Either way, ensure your replacement batteries are EXACT replacements before installing, as you don't want to have one of these melt down like I did.

Good power to run the neck fan. Charged up well.

Like the title said, these batteries are a must have! The reason why I chose to buy these batteries is because the ones that came with my outdoor motion detectors only lasted maybe 4-5 hours before before it drained up. These batteries? First, it's the same size as the OEM, it's rated at 3000mah which is nearly twice as much juice as the OEM battery and lasted all night and then some. For the cost, it's an absolute bargain. The fact that it's a rechargable battery means I can reuse it over and over which is in my opinion very important when it comes to waste. Overall, fantastic set of rechargeable battery and I will gladly buy them again for my other motion detectors.

Even though the product says it works in flashlights. they do not. I started to return them, but decided to see if I could get them to work. No matter what I tried they would not charge up inside the flashlight like my older 18650 batterys do, I checked contacts and made sure the had contact (they did) so left them charging for the day in both flashlights, the one flashlight charge indicator flashed on and off as if it was charging but never stayed on to show it was charged, the other flashlight indicator stayed lit but never turned blue to show it was charged, the size of these batterys 18650 are just a tad shorter than the 18650 ones that came with my flashlights, however the spring still made contact in both flashlights, I would not purchase these again and will not be using these I already have, will have to drop them off at the local store that take batterys for disposal. They should have charged as they made contact, they simply did not work.