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Keep Yourself Warm for Just $20 With These Rechargeable Hand Warmers
Now I've ditched the powdered packets in favor of rechargeable warmers -- specifically, a pair of Oocoopa UT3 Lite Magnetic ...
thecooldown1d
Researchers extend next-gen battery lifespan by 750% — here's the surprising material that made it possible
Researchers have uncovered a way to extend the lifespan of next-generation lithium batteries by 750% using water, a ...