Step by step guide for the internal battery mod

[Remzi]

A friend from Italy asked me to help him making this mod.I will go in to more detail.

STEP 1 Building the battery pack:

Shopping list.

1 X Battery Charger Protection Board Module

6 X 18650 Batteries

1 X DC-DC Step down buck converter

1 X Soldering Iron

1 X Multimeter

Making the PSU connector cable:

You need the cut off the DIN connector from an old C64 PSU.



Plug in the DIN connector and find the continuity to the leg in the image above.

[Remzi]

Adjusting th step down buck converter:

Apply 12V DC to input of the module and monitor the output with a multimeter.Turn the screw clockwise to drop the voltage to 5V or 5.1V.