Long-term, this reduces the battery's longevity, and Tesla cars actually charge up to 90% by default. But if you're pressed for range, should you change this and charge up to 100%? Well ...

The Elon Musk-led Department of Government Efficiency wants to charge at least one federal agency millions of dollars for its work. The Office of Personnel Management was asked to pay for 20 full ...

The new concept device's features panels that can absorb solar power, which it can turn as energy to charge the smartphone's batteries, a technology that many want to see for modern cellular devices.