If there’s any doubt that solid state batteries are actually here, well … here’s your proof. You can actually buy this for yourself and get it delivered to your door in a day or two. No, solid state batteries aren’t everywhere and definitely not mass market yet, but they also aren’t vaporware and always five years away. Just like this Yoshino battery, there’s other solid state batteries right on the cusp of ending up in consumer electronics devices near you. But do these early versions live up to the hype? And who is this Yoshino battery really good for?
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