We discharge four of each disposable battery, store them, and then check each week for any signs of leakage. The image below shows batteries being put through our leakage test. We regularly revisit ...

Unlock to see our ratings and compare products side by side The Energizer Ultimate Lithium AA is part of the Batteries test program at Consumer Reports. In our lab tests, AA batteries models like ...

Last week's column shared the information I gathered while field-testing a few pieces of my cold-weather camping gear. All-in-all, the products I put to the test would suffice. However, there was ...

Unlock to see our ratings and compare products side by side The Energizer Advanced Lithium AA is part of the Batteries test program at Consumer Reports. In our lab tests, AA batteries models like ...

The difference in voltage discharge curves between alkaline and lithium batteries explains why their performance can vary dramatically in certain devices. If you've ever experienced a lithium AA ...

He is in charge of developing and carrying out testing procedures for a wide ... tests to find long-lasting alkaline batteries -- including AA, AAA, C, D and 9-volt options. We also considered ...