GK61XS stuck, can't turn off, software doesn't detect it and even unplugging the battery didn't work : r/GK61
FIX: No battery is detected Windows 10
4 Ways to Revive a Dead Laptop Battery - wikiHow
TOSHIBA Portégé Z30 series 4-cell 3380mAh (52Wh) laptop battery, When I try to charge the battery, the computer doesn't detect the battery or it says “plugged in, not charging.” – Canada battery