Plus it is annoying to hear the Li-Ion chemistry described as "humble". It is more of a stuck up diva. Charge over 90%? Rapid degradation. Discharge under 1

Plus it is annoying to hear the Li-Ion chemistry described as "humble". It is more of a stuck up diva. Charge over 90%? Rapid degradation. Discharge under 10%? Rapid degradation. Operate at room temperature? Rapid degradation. Even if you keep the battery at 50% charge inside a fridge it will still rot apart in three years. And this is not even mentioning the extremely fickle charge controllers that can make the cells catch fire. Li-ion batteries also have horrible energy volume (MJ/L) and have been central to planned obsolescence in consumer electronics.