Just a quick note, I joined today to say 'Thanks!' I've been reading this forum for 5 years and it has helped a lot. Just today I brought a 2013 Prius C out of 2 years of storage in the garage. Bought a 12-volt battery, read lots of posts, plugged it in and the car fired right up. Drove it around the block a few times to put some juice in the main battery. It appears fine. So, THANKS!