Did this build with my 9 year old grandson. Great opportunity to teach some basic circuitry and reinforce his strong desire to be “green”.... that’s why we chose green components. Used waterproof connectors for solar input and cigarette lighter output so the case could charge with the lid closed (typically “cracked” open to prevent overheating and gas buildup). Also added a “master arm” (all battery output) mostly because he thought tge switch was cool.
How to Make a Custom Sewing Machine Case
What do you think is the max weight this will support?
Probably the best use (for those of us short on memory marbles) is for a short term hiding place to leave keys, money etc for kids, or out of town friends. For long term stuff a good ol' safe.