Deruicent Flat TOP Rechargeable Batteries 2600mAh (2 Pack) and Battery Charger for 14500 18490 18350 17670 17500 16340,Ni-MH/Ni-Cd: A,AA,AAA,AAAA

The fast shipping was great on this charger and the charger looks nice but sadly I cannot use the batteries which makes the charger useless as I have no other batteries that I need it for. The insulation is far too thick for them to fit into my device. SO disappointed that I now have to spend money on more batteries. :( There should be a note on this product that they have extra thick insulation.UPDATE: While I still can't use the batteries for the device I got them for, the seller reached out to me and gave me a full refund and allowed me to keep the charger and batteries. The seller is VERY professional and understanding, I would certainly do business with them again! I bought new batteries and the charger works well, I really like it! Changed my review to 5 stars!

I purchased this as an extra set of batteries and a charger for a OPOLAR Operated Fan. These batteries lasted even longer in the fan than the original batteries. Very simple to use and very handy to have. Both of these products were lifesavers at summer camp this year.

The product came packaged nicely and I was very surprised how fast the charging was! I always hate to wait for long charges to be done but getting 2 batteries was a deal breaker for me and it was great with the usb charging fan I got here from amazon too. If you need a portable small fan it is worth checking out! The 2nd battery will be handy to have while out and about. Now I can have my fan running a lot longer.

*UPDATE*The seller contacted me immediately and offered a replacement charger, free of charge. Also, they assured me that, although the box comes with this warning, the charger will actually automatically cease charging once the batteries have reach full capacity. I am overwhelmed with this seller's kindness and certainly expect to buy more from them in the futureI got this charger a few days ago to charge the extra batteries for my vape (Li-ion 18650s). The charger works well and is able to charge them, however, the charging LEDS always indicate that the batteries are empty, despite them being 75% charged (verified on my vape which gives specific percentages). This will most certainly make it much harder to determine when charging is finished, something I am very disappointed about especially given the warnings on the box that say specifically to not leave batteries charging once full.

Nice little charger. I would say it takes about 2 hours to recharge an 18650 battery from dead. Both the batteries that came with, were 90 percent charged out of the box. Perfect for my eleaf istick pico that the micro usb port wore out on. Just drop in a new battery and its ready for another day. They say the 18650 batteries will do about 800 cycles, well I've been using the original battery for right at 3 years so that's even alittle better than 800 cycles. The charger is stupid simple. Positive side up, connect cord, watch pretty meter slowly climb. The batteries are the flat top variety, exactly what I was looking for. For the vape mod. Works exactly as described.

Have charged multiple sets of batteries thru the device with great success; charged quickly. So far, so good - charger is as advertised. Highly recommended if you need a flat top charger.

I really like the big display showing me how the battery’s percentage. I also noticed that it charges faster compared to the other two I had in the past. One thing that I like the most about this charger is that it’s power source is via usb, so I can actually use my power bank to charge the batteries if I needed to!Very happy with this purchase

I own many dozens of chargers for all types of batteries and I'd have to say that this is one of the best I own. The batteries fit snugly, the displays are quite legible, the unit exhibits excellent build quality and the price is right. The batteries I've put in so far have charged, and displayed, perfectly. Not super-fast charging, but fast enough to be helpful and to feel safe for the batteries. I'm impressed and am glad I purchased multiple of this charger. I recommend it.