My 12 volt battery saga with my 2004 Prius began in 2007 and continued through 2014. I would hop in the little darling only to discover she was dead as an armadillo on the side of the road. For the next seven years, off and on,my little Prius regularly needed to be jumped. I have spent untold non-interesting hours hours at Toyota dealers from Texas to Virginia. During that time I purchased and paid to have installed six batteries. Six. My problem was not fixed until I went to an INDEPENDENT garage in Great Falls, VA.
11-05-07 replace battery
4-28-08 replace battery
4-24-09 replace battery
10-26-10 replace battery
10-27-11 replace battery. Dealer stated NO ELECTRICAL DRAINS FOUND.
12-04-12 test and charge battery . I told them of ongoing issue.
03-15-13 test and charge battery. I restated the on going issue.
01-15-14 Great Falls Auto Service finds a .19A draw due to an aftermarket tracking device installed behind dashboard. (I found this garage through the Car Talk website link Find a Mechanic. Thanks, guys!)
01-31-14 replace battery.
I did not put in the aftermarket tracking device. I bought the car six months old from the owner who had purchased it from Champion Toyota in Austin. They never found the device even though it was possibly put in by them (not sure) and they were doing my maintenance for the first four years.
Meanwhile Koons tried to suck more blood from my wallet than the armadillo lost after being run over. They seem to be fairly unsavory in their service practices.
Any thoughts anyone?