My DIY 18650 Battery Charger
44:07
Building an 18650 battery pack ALL BY MYSELF
14:25
Make Your Own Lithium Battery Charging Station
12:19
Estación de Carga Para Baterías de Litio 18650 12 Celdas, Cargador de Baterías Casero
16:29
Cordless Drill Conversion - With Laptop Batteries??
15:02
96 Cell 18650 Battery Charger
15:10
Auto switching mini UPS DIY, DIY ups for router 7 hours backup
16:57
Home-made spot welder (very powerful)
17:00