a WEEK?! that can't be right; I left my wrangler up on blocks all winter, after 4 months of not using it; it started right up with a 4 year old battery... what is the tahoe doing with the engine off sucking down the juice? planning world domination by hooking up with sky net? (terminator joke)... or how GM will go bankrupt in the next month...

 

My personal opinion is that the new charging system keeps the battery at low levels of charge if you just do a lot of short trips. Don't really think it adds to mpg either.