21700 Rechargeable Battery Case Set, 2pack 5000mah Large Capacity 3.6Volt 21700 Tip Battery for flashlights ect,

These batteries were ordered as backups for a pair of flashlights that we own and they perform flawlessly. The quality of the product and quick charging is well worth the price to pick a few up for yourself. We live in a hurricane prone area of Florida and feel confident that these will perform just as they have when the time arises.

Great batteries that provide a powerful long lasting charge.

These are used in my new Jumper T15 radio. These batteries perform and charge as expected, arrived quickly. I only have one set of batteries for my radio since they last so long. One thing I thought was odd is that the batteries seemed to pop out of the plastic housing in my radio for the 21700 batteries. So much so that I had to wrap the battery enclosure in electrical tape to keep them from popping out on their own. I thought it was the fault of the Radio manufacturer or perhaps it was a housing for an 18650 but it's possible based on comments of others that these batteries are a little thicker than they should be.

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They are shorter then my Fenix and imalent 21700.Bought them for my xtar pb2sl power bank. They barely fit. Some mods might be needed.I will run tests on to see true capacity, I can almost promise you the are not a true 5 ah battery.I would say just buy the tenerg, LG, Panasonic, batteries and know you’re buying quality.Too early for me to really tell. I probably wouldn’t buy again.After testing they are only 4 ah these are false advertising shame on this sellerBuy real cells, Panasonic, tenergy, lg

These are great cells. I've cycled them a few times in my bicycle light and they're performing as expected. Battery life is excellent.

These do NOT fit the Geekvape L200 Classic Vape mode. You need to get the flat top batteries. The button top style won't allow the battery lid on the bottom to close.I managed to make them work by squishing down the button face against a table so they would fit.

Perfect fit for my Fenix HM71R Head Lamp. I needed extended battery life for my head lamp and a weekend worth of use without charging. Just pop these in when running low and your good to go! Great quality!