I looked at three years of exclusive CNET data of iPhone performance to find out which models hold their charges best.

Other Android makers like Google, OnePlus and Xiaomi include comparable options -- often called Adaptive Charging, Optimized Charging or Battery Care -- that dynamically slow power delivery or limit ...

Need a long-lasting laptop? Here are the longest battery life laptops we've seen in our many years of hands-on testing.

German researchers have developed a new solid-state lithium-sulfur battery that reduces electrolyte content and boosts energy ...

The Anker Prime Power Bank (26k, 300W) isn't larger than prior versions of Anker's flagship portable battery, but it ups the ...

While Mashable has yet to perform nuanced battery testing of our own, we at least have official spec sheets to go off of ...