Awww, shoot! Forgot to pull your battery last fall, didn't you? Let's face it, batteries are a pain. They don't last forever, and there's a finite amount of gizmos, gadgets and farkels you can run off them without running into one messy electrical problem or another. Good riddance. Inside each and every one of these special batteries resides just enough nuclear waste to power everything you've ever dreamed of powering on your bike. Without wires. Wait a minute...everything...wireless?! Yes, you heard right. The compartment itself is made of a hermetically sealed 1" thick polycarbonate resin and comes with a lead blanket to drape over your seat, so it's completely safe. Built to last lifetimes.