Our research and testing showed that the Panasonic BQ-CC55 is the easiest and safest way to keep your rechargeable AA and AAA batteries in tip-top shape.
After further testing, we’ve added picks that perform just as well as our existing favorite rechargeable batteries.
Here are the three cases where single-use batteries are still the better option.
The best cables and chargers will fill an iPhone 11’s battery faster than the ones included in the box.
We’re switching to watt-hours for battery measurements, because it’s easier to shop for battery-powered devices if you have a way to compare them directly.
In this week’s newsletter: Regular (alkaline) batteries are still better for some electronics though.
Between voltage, the current discharge rate, battery age, and the aggregate performance of its counterparts, a phone has a lot to keep track of when determining its remaining battery life. We explain why it’s so hard to keep those estimates accurate.
When we first tested Bluesmart smart luggage, we disliked how hard its battery was to remove. That flaw doomed the company.
We hired an electrical engineer to crack open some discount Dyson battery packs, and found shoddy craftsmanship and possibly counterfeit cells.