In the case of electrical improvements (like hooking your hacked battery up to mains power) your insurance company just needs to do a little digging. They just

In the case of electrical improvements (like hooking your hacked battery up to mains power) your insurance company just needs to do a little digging. They just need to find out if there were improvements without permits or if those improvements weren't made to code. http://www.popularmechanics.com/home/interior-projects/how-to/a17687/7-building-code-violations/ http://www.popularmechanics.com/home/interior-projects/how-t...