I stuck this power station in a freezer to test its subzero claims

Cold weather is a lithium battery killer. Without heating, lithium-ion cells begin to struggle below 32°F (0°C), and by 5°F (-15°C) capacity can be reduced by 30%–40% depending on age and quality. Charging at or below 32°F risks permanent damage from lithium plating, which can kill the battery or cause short circuits and fires, so each exposure to low temperatures is a real safety and hardware risk.

Bluetti’s answer is the Pioneer Na, which replaces lithium-ion cells with sodium-ion technology. The unit delivers 1,500 W and 900 Wh, and offers four 120 V 1,500 W AC outlets, four 15 W USB-A ports, a 100 W USB-C port, a 12 V/10 A car outlet and a 15 W wireless charging pad.

It can be charged via AC, solar panels or a vehicle 12V system, reaching 80% in about 45 minutes and fully charging in under an hour.

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