Author Topic: Dreamcast Battery Mod  (Read 155 times)

Offline Gizmo613

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Dreamcast Battery Mod
« on: July 13, 2017, 04:43:42 PM »
Here is the Battery mod from rechargeable lir2032 to regular cr2032. I choose to do this because they are cheaper and easier to find. Plus the purchase a whole lot since the vmu uses 2x cr2032 and i have a Pokemon Go Plus that also uses the same battery.

Parts:
1x 1N4007 Diode
1x CR2032 battery holder
Soldering Iron


First disassemble the Dreamcast by removing the modem and 4 screws:


Then remove the controller board which houses the battery and charging/limiting resistor.
4 screws, the fan plug and the ribbon needs to be removed first. (Note: On some boards, the power supply board needs to be removed as there is a tab that sticks out over the controller board. Mine did not.)


Once the board is out, desolder the battery and resistor(Note: There seems to different boards with the resistor in different locations. On my board here, it is right next to the battery and marked R1 with the resistor symbol. )

Install the holder and diode. (Note: Different boards will have the diode mounted differently. Make sure the cathode, the gray line, is going towards the ribbon connector. Follow the traces!!)


Now reinstall the controller board and add your new battery!



I tested it by starting the console and entering the date and time. Then turned it on and off to make sure the date was saved. Now enjoy not having to enter/skip the date and time every time you turn on the Dreamcast.

Next stop...... IDE/SATA hdd mod!!
I've designed some QSB for the dreamcast hard drive mod. This will have a ffc connector so that you won't have to cut your case up. Another board i designed will allow the removal of the GD-Rom drive. So stay tuned!!!

Offline Brian 503

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Re: Dreamcast Battery Mod
« Reply #1 on: July 13, 2017, 08:28:43 PM »
No led mod, just kidding.

Offline Gizmo613

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Re: Dreamcast Battery Mod
« Reply #2 on: July 14, 2017, 05:04:07 AM »
lol not yet. Trying to find a green Dreamcast logo sticker first. Gotta match my buttons.