My biggest problem with the Forma is that, even when completely turned off, the battery dies and refuses to charge for days on end. One day, the device says it

My biggest problem with the Forma is that, even when completely turned off, the battery dies and refuses to charge for days on end. One day, the device says it is charged to 100%; the following day, it dies without an apparent reason. I’ve calibrated the battery many times, but the issue remains. I agree that if it didn’t happen, the device would be excellent.