Male hand draws not fully charged battery on blackboard, need recharging, plus, minus. Closeup, 4K Ultra HD.

Name: Male hand draws not fully charged battery on blackboard, need recharging, plus, minus. Closeup, 4K Ultra HD.
Uploaded: 2017-03-09
Duration: 22 s
Channel: computerman
Description: Male hand draws not fully charged battery on blackboard, need recharging, plus, minus. Closeup, 4K Ultra HD.