Genuine Efest 2500mAh IMR 18650 BATTERY - 35AMP BATTERY - FLAT TOP

I bought this for a larger e-cigarette battery box most of these require a 18650 cell and a "flat" top v a nipple end; but you can also use it for other devices such as LED torches/tools.The battery comes boxed with a watermark on the plastic covered sticker with a QR scan code no reason to doubt the authenticity of the battery. For testing I ran the cell though a battery capacity test this gives an accurate idea of the actual battery capacity rather than the stated one - the Efest did perfectly here with an actual capacity of 2520mAh.In use I'm running this with a 30w box and it's working very well giving around a day's heavy use and up to 2 days for lighter vaping. Charging is around 5.5 hours up to 6 hours charge in a dedicated battery charger it's a little longer if you use the micro USB on the battery box (nearly 7 hours) No complaints on this one a solid battery.

These don't last very long at all unfortunatley! :(

I bought this for £7.24 and it's cheaper than anywhere else I could find when I purchased, however there seems to be one for £6.30 "newer version" with good reviews.. I got this on 5th of sep and it's still working and I've noticed nothing different. As long as it's legit and made properly, go for the cheapest option, don't be ripped off.

Have used this make and type of battery for months, excellent quality and they last a long time. Amazon deliver in a box that could hold 200 of them I guess mainly because of lithium transport warning label, even though the delivery label on this box covered it!

Battery is bang on... Perfect for my mod box. Would recommend using a proper charger to keep life of battery

This battery blew up my mod box tc60w almost lost my hand if I didn't act fast do not buy! I'm phoning Amazon because I have no vape box that cost me £65

Ordered for a friend. He's just asked me to send it back as it doesn't charge.

Battery works straight out of the box. Quick charge and longer life than my last battery. Using it in a kangertec nebox (not the best vape "one star" due to leaking) and once fully charged it lasts a good hour vaping.

Good, solid battery with great life. Arrived WAY over packaged in a giant box. Flat top isn’t very flat and is nearly round.

Perfect

Fitted this in an ecig and it’s been excellent; charges quickly and last a long time.

gave it the benefit of the doubt bit as the others said don't hold charge won't be buying again

Good genuine battery, however not as long lasting as some others on the market

good

Can be charged so many times I lost count. Well worth the purchase.

good

Happy with order.

cant go wrong with these had a few of them now for well over a year and still going strong