For lithium ion batteries, it is basically not said that insufficient charge will affect the cycle performance of the battery. Because lithium battery has no memory effect.
All batteries will have a voltage platform during charging and discharging. In my opinion, the so-called discharge is instantaneous discharge or slow discharge, which is the difference of output power. When the battery has more power, the output energy P=UI should be larger, and the success rate will decrease with the decrease of voltage.
