For my solar power system, I have an array of 3 12V 8 Amp Hour sealed lead acid batteries wired in parallel to get 24 Amp Hours. As a project for my shop class, I decided to build a nice box to store them in. I needed this because they are heavy and have to be moved with the rest of the charging circuit as a unit. After I assembled the pieces of MDF and plywood, I painted them the closest color to white that was available. I added small hinges from a bucket sale at the local Habitat for Humanity Restore. The part of the project for class was just the woodworking, but I added a few switches at school. I also mounted an ammeter on the front, an automotive power outlet, and a desk grommet for the wires to pass through.
After I brought the box home, I added a ceramic handle on the lid. I installed the batteries, charge diode, 10 amp ATM fuse, and a beeper for my dinner bell system. I added magnetic lid latches to keep the lid closed. The whole system is connected to a solar panel which charges the batteries. I mostly use it to power my speaker system.
Amazon Affiliate link to a 3 inch cord grommet: https://amzn.to/2JYSK6j
link for the fuse assortment I bought: https://amzn.to/2wdCWV1
link for 12V 8AH battery: https://amzn.to/2EpVrdk
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