Duracell has changed hands a few times, but today, it's owned by Berkshire Hathaway — the same conglomerate behind Dairy ...

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 Duracell 51R is part of the Car Batteries test program ...

Life test measures how a battery endures repeated charge-and-discharge cycles at hot-climate engine-compartment temperatures. The more cycles endured while maintaining a higher voltage, the higher ...

Remember Duracell’s PowerCheck? The idea was that a strip built into the battery would show if the battery was good or not. Sure, you could always get a meter or a dedicated battery tester ...