Ive noticed in last few weeks that when k recharge my tab, it sometimes quit showwing thst flash in battery and % does not charge up.... when i re-plug tablet % increases 30% or 1% (depends how long i keep it without re-plugging). Any one else experiencing these "lags/bugs"? (im on 4.4.2 lastest build tab 4 7.0 SM-T230)