At some point, you might notice that your battery life on your phone isn't as strong as it once used to be. For example, perhaps you used to be able to make it through the work day without needing ...

The Samsung Galaxy Book4 Edge has a 61.8 watt-hour battery that died at the 21-hour mark. It’s not the 24-hour result we saw with the Lenovo ThinkPad T14s Gen 6, but 21 hours is nothing to ...

But there was still a long way to go. The Mercedes with a Factorial battery hadn’t yet been taken out on the road. That was the only place the technology really mattered. Many start-ups have ...