Eric,
I ran across your battery generator build and have a couple of suggestions.
1) put a separately powered (AA battery) thermometer that uses a probe in your system. Attach the probe to the most temperature sensitive component of your system. That way you can monitor the internal temperature and prevent a potential overheating issue. A sealed box can produce a very large amount of heat.
2) Consider lowering the faceplate and/or adding a pocket to hold accessories you might need to use with the equipment. Ex: short AC extension cord, flashlight, AC LEDs and sockets, Headlamp, etc.
We built a small toolbox setup that we call the "Blackout Box". It contains a few small flashlights, 300 watt inverter, Two 9ft extension cords, 4 watt 110V LED bulbs, AC plug in sockets for the bulbs, usb charging cords, etc. This was designed to be a "Grab & Go" setup that anyone in the house could use if/when the grid power drops. (We live in a rural area so it is not infrequent). We use this to attach to out Battery Backup system for emergencies & out on farm activities where we need the comforts of AC power.
Wish you the best with you continually improving project.
