Build your own MacBook MagSafe adapterBy Jeff Crystal
If you have an old MagSafe power cable available, you can build your own adapter to connect with the Voltaic Generator battery. Depending on your MacBook, you will get between 1 to 3.5 hours of runtime from a full Voltaic battery. |
| Warning: Your Apple is an expensive machine and we would not want to see you damage your power supply. Please be careful with the polarities. Voltaic Systems is not responsible for any damages to your machine.
Parts: Step 1: Prepare the DC Out cable |
| Step 2: Prepare the MagSafe Cable Cut the cable about 12 inches from the MagSafe connector (you can remove less or more depending on your needs).The MagSafe cable is a Coaxial cable. Strip away about an inch of the outer insulation and coil / braid the outer fibers into a single wire. Strip away about a quarter to a half inch of the inner core. You want to make sure that you leave room between the inner and outer wires so that they do not connect.   |
| Step 3: Solder and join the two cables
The outer cable, like most charging cables, is negative. The inner cable is positive. Twist the outer MagSafe wire to the white / negative wire from the DC Out. Twist the inner MagSafe wire to the red / positive wire from the DC Out. Solder the connections, then wrap each connection with electrical tape. Wrap the complete connection with tape so that it is secure.
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| Step 4: Test Turn on the Generator battery and select the 12-20 Voltage range. Plug the cable into the battery and the MacBook. You should see the lighting bolt symbol on you MacBook. 
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