Did the Bluetti Pioneer Na keep working in the freezing cold when most batteries would give up? I tested it to find out.

Donut Lab publishes results from its second VTT-backed test, claiming strong performance at extreme temperatures.

VTT's second independent test shows Donut Lab's solid-state cell delivered 110% capacity at 80°C and survived 100°C discharge ...

California has been pushing electric-powered heat pumps as the clean replacement for gas furnaces, but high electricity prices mean many homeowners don't always save money. A new Harvard study ...

Space heaters tend to fall into two camps: compact “desk warmers” that struggle to distribute heat, or taller towers that move air well but can be loud, tip-prone, or limited in placement. The Midea ...

For the past seven years, I have tracked consumer tech through constant shifts in hardware, platforms, and the way people actually use devices. Covering everything from budget gear to flagship ...

Think of those foggy, chilly cold winter mornings when the alarm goes off. Instead of jumping out of bed, you find yourself pulling the blanket tighter, dreading the moment you'll have to step onto ...

It happens each year when the weather turns cold: The coats, hats, sweaters and blankets come out. The lights come on earlier. And the arguments over how high or low to set the thermostat begin. But ...

“It works extremely well and heats up a room within a few minutes.” The big-box behemoth is selling the Alrocket 1500-Watt Tower Space Heater for $53 right now, 63% less than its $140 list price. It’s ...