18650 Battery Case 4Pack Battery Set, 3400mAh Battery for Flashlights, Headlights, Fans, Digital Cameras, Toys, Radios, Speakers, Surveillance Equipment, etc.

These are not 3400mAh, but they are 320mAh'ish.I use these to power my dual 18650 vape box mod. When they get low enough the mod box will stop me from over draining them.Afterwards they go on my EBL digital read out 4 bay charger.the first few times they charged to just over 3000mAh.After having used them every day they now (from the box mod preset cut off point) charge to 3200mAh and the most has been 3265mAh.These work just as well as my old LG HE2(??) Samsung 3000mAh and all the best batteries for high drain devices like vape mods. I get a full days' worth of vaping out of them, and I vape all day every day and these are just as good as any brand I've ever purchased.They fudge the weight too. I have a .001-gram jewelers scale that I use to mix my own juice and they weigh 45.375,The other e2 are in use but that gives you an idea of the weight. Which is on par with the much more expensive batteries that I was unable to find at a price I was willing to pay.For the price of 2 LG HE2's that are 3000mAh or so new you can get 4 of these in a better than average carry case.I'll post pics next time I charge them from empty and I'll even pop them in a flashlight for a few minutes, so they get as close to dead (for good dead) as possible prior to charging and post pics of the read out.I've purchased 2 more sets of 4 so I could have all new batteries for all my devices.I'm not sure when I bought the 1st 4 pack but today is 2-1-25 and they show no signs of getting weak.

I have these for a vape mod and they work perfectly and charge as expected. Recommend

I've never been dedicated lithium battery user. But when I started using a battery operated mod for vamping. I had to find some decent batteries. These past the test and have not let me down.On one charge they will last up to a day and a half. That's with heavy use. Hardly using the device it will last up to 2 to 3 days. So yes these batteries function Great.Charging them takes about 3 hours on a speed charger for lithium batteries. I think it could be better. I need to research chargers. However these batteries I strongly recommend, they are cheaper than other brands and perform the same if not better. Thank you for your time.

while these are not the crappy way-over-rated batteries sold by other Amazon vendors, these batteries are 10% short of advertised capacity. I received 4 batteries and the capacities were: 3141, 3128, 3199 and 3130 vs the 3400 mAh ratings in the description. For $6 per battery - not bad, but could be better. I still need to put these through some more tests to see how long they perform.

Great product. Exactly as described. Will buy again!

Definitely recommend using these instead of purchasing from vape store. You basically get 4 for the price of 2. They hold battery all day.

Got these for an LED dress. They worked very well. I'm not sure how long they lasted because I didn't time them. I got through half the night(3-4 hours) before I noticed them getting weak. My dress has hundreds of led lights- so it uses a lot of power.They came with a case to keep them together and safe.I would buy again.

This battery did not work in my NEBO flashlight. Apparently it lacks a built-in protection circuit and it is about 1 mm shorter that the OEM battery.