Building an automatic water manager for a vertical garden wall.

Toyota Prius - courtesey of Pawel Golsztajn I own a second generation Toyota Prius, and while it’s a great little car, it has one fatal flaw - the 12V auxiliary battery. Unlike most cars, the 12V battery in the Prius isn’t used to power the starter motor for the combustion engine. That is powered by the main hybrid battery. The 12V battery is used to power the vehicle electronics during the start up process. Once the vehicles computer system is booted up, the hybrid battery takes over.