I have a ford explorer 2013 model. NOT ROBOT
The battery for the ford explorer 2013 the battery is replaced twice now.First time I replaced the motorcraft original batter which lasted only 1 1/2 year and I replaced the battery last September 2014. Today I saw the cranking voltage is low as 8 and hence the mechanic advised me to change the battery.What should be the reason for battery exhaustion. I was told normally the battery last for min 3 years.