How To Make 12v Battery Charger From Laptop Charger. In this video i will show youhow to make a 12 v battery charger using laptop or 12 v output power adapterMATERIALS NEEDED. Reading the incredibly fine light-grey print on the charger that came with my Macbook Air I can see that it takes in 100-240 volts at 1 amp and converts it to charge at 1585 volts DC at 305 amps.

4Jumper cables Wires would work but jumpers would be safe 5 Laptop Charger 10-17v only Ask Question. In each of these steps theres a power loss. Uses Of 12v Solar Battery Charger.
Depending on your laptop.
4Jumper cables Wires would work but jumpers would be safe 5 Laptop Charger 10-17v only Ask Question. Itll provide constant voltage and constant current. Depending on your laptop. Use a silicon diode a light bulb base 16-gauge insulated wire and a connector to the inverter to create an AC-powered battery charger.

