We test and review what we think is the best car battery tester, plus other options at different price points at AutoGuide.com.

Panasonic’s Eneloop BQ-CC55, our favorite charger for AA and AAA rechargeable batteries, is sleek, compact, easy to use, and plugs directly into a wall outlet.

Battery This is honestly where the HP OmniBook X 14 truly shines. The laptop musters up a battery life of more than 15 hours which is insane. This battery test wasn’t very fancy, so to speak.

Alkaline batteries are used in all kinds of things, and we've found the best ones for powering your everyday devices.

Consumer Reports explains how hot weather affects your car battery and shares tips for ensuring reliable starts in summer months.

Table of contents Best power banks for 2025 How we test best power banks What to look for in a portable battery pack Other power banks we tested Power bank FAQs ...

It can take both 3.6V Li-ion and 1.2V Ni-MH batteries, and it has a built-in battery tester that doubles as a great kid’s toy. My own two kids love checking the status of batteries for me!

The right browser can really upgrade your online experience. We help you narrow your options by comparing the most popular web browsers on speed, privacy, and other important features.

We've tested hundreds of laptops to find the ones that last the longest between charges. These battery-life champs will easily take you through a day of work or school, plus an evening's ...