The Volvo batteries fail without hestitation after 5 yrs...no matter the mileage. I've bought several relacements fromm various sources...NAPA and Sears and the private mechanic. Three of them (many Volvos in the Fleet of family cars over the years) cost $100 each. BUT my latest was the $39.95 size 47 relacement battery from Walmart. It's got a 2 yr complete replacement guarantee and a 72 month prorated guarantee. I realized it could be a foolish experiment, but my hand was forced at 6:30 PM on a Friday night when the volvo battery just crapped out. Walmart was opened and there the battery was. Funny thing, when I brought my old Volvo battery back into the store that night for the $5 core credit, the old batteries were stacked in a shopping cart at Customer service. And I set my Volvo battery right on to of another Volvo battery.

So far so good. Typically I spare no expense on maintenance, but I'm getting some strange satisfaction out of this $39 purchase.