Its something do do with the charging indicator or something. If I put in a full brand new battery (tried 2: Efest and SubOhmCell) it will hit 1-2 times then say low battery or check battery. Then will keep saying check battery unless I let it sit for a while with no battery in then it will recognize the battery agian, but do the same thing over agian.
Basically it does exactly the same thing in these videos of the Cloupor Mini. The Mini had a lot of people with this problem, but the Mini Plus was supposed to have been fixed, but my Plus found a way to replicate the exact problem. (not my video)