DIY 220V Powerbank 300 Wh from 18650: a portable socket is always nearby DIY
14:07
DIY PowerBank 4/8 18650 batteries for smartphone, router and smart home 5/9/10 and 12 Volts
11:04
🔥 Incredible life for an old laptop power supply! Few people know about this feature
32:02
Сборка LiFePo4 аккумулятора своими руками на 320Ач литиевых ячейках с АлиЭкспресс. Тесты и проверки!
15:10
Auto switching mini UPS DIY, DIY ups for router 7 hours backup
31:05
e-scooter e-bike battery repair brief
20:51
Power Bank 65W для зарядки всего - своими руками
25:50
ALL BATTERIES CHARGER just use this PSU
24:46