Last night I checked my power level on my Apex and it was at 100%. I just now turned the apex on to read the manual and about fifteen minutes after turning it on, apex says battery is critical and I see 0% for the power level. Why is the battery draining when I am not using the apex, it is turned off and the adapter is still on. This has happened to me a couple of times and I can’t figure out what is going on. I then have problems trying to get the unit to start charging again. Can anyone help me figure this out? Donna tcorson2@xxxxxxxxxx