12v Laptop Power Supply

Parts Required

Old/Spare power supply for your laptop*
Cigarette/12v plug

* My laptop requires 15v 5A but using a 12v supply will power the laptop but not charge it, this is fine for emergency power if the battery gets low and I haven't finished observing.

Build Process

1. Cut the cable from the transformer

Cut cable

2. Open 12v plug

12v plug

3. Strip cable, work out polarity then solder wires to connections in the 12v plug

Solder

4. Replace covers to plug and test.

Finished Power Supply

END OF PROCESS
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Copyright 2014 Andy Hutcheon