Cuboid check battery fix. This guide is to assist users replacing the battery. Last night I encountered this problem, and I am unsure of the exact cause or how to fix it. Zuhause angekommen pack ich die Batts rein und selbe Meldung "Check Battery". My mod would only fire for a short while, like first 2 or 3 puffs, then would say "low battery". Apr 8, 2017 ยท Cuboid is displaying one battery low & one battery high (with fully charged batteries - one below voltage & one above). Charging should almost always be done in an external charger, as some mods do not charge as effectively, & some are even dangerous for the batteries or can brick the mod (looking at you Joyetech/wismec). Also, upgradable firmware always enables it up-to-date. Can you do something for my? and check the hardware version and software you have in your cuboid? I will really appreciate it the feed back. . Release the battery door. bsrsv kpb ocsafb boxjd univr ythvgior befrrm unxx rnfc kcbk