Here is a Doodlebug I converted to battery (using Dead Rail Installs battery system) and Loco WiFi chip. I had to remove some of the seats to fit the battery and drill a hole in the bottom for the wires. I also had to remove the wide shell support so everything would fit. I have it set up so I do not have to remove the shell to charge the battery. (The charger cord will come out of the hole in the bottom of the Doodlebug.) Everything seems to be working well. It's a custom paint job I did that still needs some tweaking.
Wow! That looks awesome. Thank you for sharing.