Batteries charged at the lower voltage met BCI voltage standards for a fully charged battery. The Bosch Premium Group Size 49 is part of the Car Batteries test program at Consumer Reports.

Most owners of gas- and diesel-powered vehicles don't spend a lot of time thinking about car batteries until it's time to get a new one. After all, modern batteries need very little maintenance.

Life test measures how a battery ... can run a car if the charging system fails. CCA: CCA performance reflects voltage at our load of half the average claimed CCA for each group size after ...