I investigate and test lots of batteries, including some that are smaller sized than a Tootsie Roll (for very small gadgets like a stylus or penlight) or larger than an overweight English bulldog (to maintain vital electronics functioning through a power outage or tenting vacation). The Tesla Universal Wall Connector https://socialwoot.com/story20512451/details-fiction-and-wireless-car-charger-cigarette-lighter-mounting