A refreshingly jargon-free breakdown of the two main battery chemistries you will encounter when buying an EV or a home battery. The short version: NMC is like a clear bottle where you can always see how full it is, LFP is a dark bottle where the only way to know it is full is to fill it to the top and peek in. That is why your LFP car tells you to charge to 100% regularly. It is not for the battery's benefit. It is for the battery's math. The actual verdict on which chemistry is better? Buy the car with the specs you need and stop worrying about it. Bindy the dog appears to agree, though she mostly wants dinner.