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.

The batteries hold a good charge, but 1 of them the plastic started peeling off and sometimes it'll spark when putting it on the charger.

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.

I mistakenly bought these batteries without noticing that they are 70mm long. I need flat batteries that are 65mm in length. So I returned them. They seem to work well, though.

One of these blew up in my backpack starting a fire inside my commercial vehicle. Luckily, I was parked and inside the cab at the time. I tossed my flaming pack outside the vehicle but lost most of the contents. I found the shell and pieces of the battery.In addition, these batteries did not have the same life and power of other brands. They tended to really slow down operation of my vape when around 50% and below. My other battery types all outperform these.