E-Cigarettes Battery Kit Discoball Authentic GS Ego II Rechargeable Battery and USB Charging Cable for 510 Thread Vape Pen Nicotine Free (Black+Steel, 2200mAh, 2 PCS)

Great, work as they should. I originally had one that only charged from the top but the threading eventually rubbed away leaving it useless and not chargeable. These ones are so much better because they have a mirco usb charger in the base, which in my opinion makes for safer charging and also takes the strain off the threads because you're not constantly screwing chargers into them.The batteries last ages, haven't had an issue with these ones, when fully charged the light goes off and stays off.I use them with the GS H2S Dual coil tanks and also recommend these tanks for them as they're well built, have changeable decent enough coils and are cheap, always try and prime the coils if you can though and leave the tank, full of eliquid for at least 5 minutes before taking afew steady and gentle draws, if it tastes slightly off, your coil isn't saturated enough ( assuming the coil isn't a dud ) so leave it for longer to soak through and then the coils last a good amount of time.Also doesn't matter what battery it is, never leave them charging if you can't closely monitor them, this goes for anything, not just ecig batteries. Better safe than sorry.

Consistently good quality product and great battery life. Never had any problems.

One of the batteries appeared to stop working after a month then started working again. The cause came down to one particular clearomiser that will only work on my old 420ma batteries and not on the new batteries. All the others work fine. Unfortunately I can't tell you which make of clearomiser is affected but these batteries seem fine and I'm planning on buying more.

They hold their charge well, last longer than the screw top charging ones and although slightly more to buy in the first place have lasted twice as long as their predecessors.

Product faulty after 6 weeks. Seller not interested in faulty goods

3rd time I've bought these works really well and the 2 choices of charge are great.

fab product. after using batteries that you have to screw into a charger I'm so glad I changed to these. so much better.

Very good batteries, and the USB charge point works really well