This post discusses a new technology that claims to charge electric vehicles (EVs) five times faster in subfreezing temperatures. However, commenters raise concerns about the practicalities and overall efficacy of the technology, suggesting that simply heating the battery could be a more reliable and cost-effective solution. The criticism also emphasizes that many current EVs lack efficient battery thermal management, and without significant improvements in battery chemistry, the new technology may not present a competitive advantage against existing methods, such as using heat pumps.