Technically, Energizer didn’t build this laptop, French-based Avenir Telecom does (as a licensee). The premise of Energizer EnergyBook Pro Ultra laptop is straightforward: massive batteries. It’s got ...

If you’re looking for a much-larger laptop with a much-longer battery life, you might want to look into the Energizer-branded EnergyBook Pro Ultra. This is a brand-new flagship laptop by Avenir ...

They don’t work for everything, and there’s the recharging time to take into account. But they let me cross “buy batteries” ...

View post: 2004 Porsche 911 GT3 For Sale With 8,000 Miles: Sports Car Perfection For Mustang Money Autoblog aims to feature only the best products and services. If you buy something via one of our ...

Autoblog aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. We use up plenty of power nowadays, so much so that it’s easy to be ...

Abstract: In this article, to solve the existing problems in general on-board integrated chargers, a novel three-phase on-board two-stage integrated charger is proposed by taking the unique advantages ...

Fast chargers have become essential as phones, tablets and even laptops demand more power to keep up with daily use. Many new devices no longer include a charger in the box, so finding the best fast ...

There are six power banks on my desk right now. On the shelves behind me are a dozen (two dozen?) more. Over the past three years, I’ve tested more than 55 portable battery packs for Engadget — and ...