The N64 system takes just over 2 amps to run, this system more like about 1/4 of that, so whilst not tested to see how long the two 2.3 amp cells working together to give around 4.6 amps will last, I would anticipate something like 8 hours between charging.
Photo below shows system completed; red light on for charging, green when charged.
Only had 2 mishaps in this project:
* Connected audio amp to the batteries a few days ago, when turned system on I got a small "bang" and a smell. Oops. The audio amp is rated 5v not 7.6v so blew the circuit. I have spares so when added a 7805 regulator to a new audio amp, all worked great.
* Wired up A and B backwards - easily resolved issue.
Pretty good - usually one can anticipate more things going wrong in the modding process.
All works well, just played a couple of games of Hellfire, as uses all the buttons - image quality is good and system plays great.
I will be seeing the buyer in a week's time, so aim to get a video made of this system tomorrow or Sunday and upload it.
I could reduce the battery charger circuit to about 30% its size, as did for the BigBoy advance before when space was quite tight, however no point here, probably have about 1/4" clearance in system height and enough space for the board as-is. Regulator below the battery charger circuit is step-up regulator, as the charger circuit needs 12v-24v so giving it 12v.
