> It doesn’t matter if you charge from 0% to 100% in one go or from 90% to 100% ten times. This isn't really true, as far as I know. If you avoid fully chargin

> It doesn’t matter if you charge from 0% to 100% in one go or from 90% to 100% ten times. This isn't really true, as far as I know. If you avoid fully charging or deeply discharging a lithium-ion battery, the wear per unit of energy extracted is smaller. There are some statistics quoted here (https://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries https://batteryuniversity.com/learn/article/how_to_prolong_l...) showing that if you, say, halve the amount of energy you retrieve from a battery in each cycle, the battery lasts for more than twice as many cycles. This paper arrives at a similar conclusion (see figure 4): https://www.researchgate.net/publication/318292540_Analysis_of_On-Board_Photovoltaics_for_a_Battery_Electric_Bus_and_Their_Impact_on_Battery_Lifespan https://www.researchgate.net/publication/318292540_Analysis_...