Check battery issue keeps coming up, i don't think its the batteries i have multiple sets and have tried a bunch of different types. Brand new device will not read an atomizer but is making contact with 510. Any time i try to fire it says check battery, and the battery percentage reads %4 no matter what batteries i put into the thing. I have tried pretty much all the normal stuff like setting it to default, hard reset, updating software. I have used, mixed, and new married batteries none will work properly. I have opened the mod up and looked on the inside and nothing looks dodgy, the soldering looks decent. Pic is device monitor picture with 3 batteries married same type in (LG).