Apple will repair your swollen Watch Series 2 battery for free
Your 42mm model will be fixed even if it's out of warranty.
French Renault Zoe owners can finally buy their batteries
Until now drivers had to lease Zoe batteries, even if they owned the car.
Dell's new XPS 15 has faster chips in the same bezel-less body
The popular model is getting Intel's new processor and 1050 Ti graphics.
Nissan is using recycled Leaf batteries to power street lights
It's part of a larger push into home and business energy storage.
Tesla says it’s being underpaid because its batteries are too fast
Its batteries supply power quicker than Australia’s energy operator can register.
'Proton' battery uses cheap carbon instead of lithium
It could make home and grid storage infinitely cheaper.
Energy storage breakthrough could boost EV range and slash charge time
Researchers have developed a material more energy-dense than lithium-ion.
Tesla Powerwall systems help some Hawaii schools beat the heat
Solar is big business in the Aloha State.
Water purification could be the key to more electric cars
You could mine the oceans for lithium without hurting the environment.