I purchased the one year warranty battery for my 2008 Prius. The battery went from full charge to empty with small half mile hill. I made another appointment. The service man, Mo, told me that since no warning lights turned on and since he could not find anything wrong that the warranty would no kick in. He drove the prius and noticed what I told him. He called Joe who put in the battery. Joe approved MO to put in another battery. That fixed the problem and I drove home and my battery remained fully charged and my gas mileage was better. I called MO and tt thanked him for going the extra mile and told him that I will write a 5-star review for him. I definitely recommend Greentec to my family and friends and I will use them myself if I need a new hybrid battery.
Richard Tanaka
Poulsbo, WA