You don’t want to wait until the day your car doesn’t start to begin researching replacement car batteries. Eventually ...

Old wet-cell batteries may have lost 10 percent of charge per month to self-discharge. AGM batteries self-discharge at about 1 to 3 ­percent per month. Use your boat once a month, at least, and ...

Batteries charged at the lower voltage met BCI voltage standards for a fully charged battery. The Duracell Ultra Platinum AGM SLI65AGM is part of the Car Batteries test program at Consumer Reports.