Batteries charged at the lower voltage met BCI voltage standards for a fully charged battery. The Optima H6 is part of the Car Batteries test program at Consumer Reports. In our lab tests ...

Without a charged battery, your vehicle won't get you anywhere. Learn all about how to charge a battery so you don't get ...

How long a battery can power a car if the charging system fails. A higher score reduces the risk of failure if accessories are left on. The Optima D35 is part of the Car Batteries test program at ...

there are two approaches to take – a portable jump starter or a battery charger. Both of these products bring your battery (and car) back to life by feeding energy back into a dead battery.