Cordless DIY Car Battery Tender

Corded tender: https://amzn.to/3vT5i9B Solar charger: https://amzn.to/3PZHHuS Battery adapters: https://amzn.to/3IYHWlK Case: https://amzn.to/4cCQ09E Buck Converter: https://amzn.to/4awtNIf Digital gauge: https://amzn.to/4czFGis Switch: https://amzn.to/4csa1iS Splice terminals: https://amzn.to/4afuwOu Spade terminals: https://amzn.to/43z8hAp Let's make a simple water tight cordless car battery trickle charger. I'll let you know how it's working down in the comments.