Yea I’ve used a variety of battery charging circuits in designs I’ve done and measuring voltage and current are pretty easy but measuring capacity is not obviou

Yea I’ve used a variety of battery charging circuits in designs I’ve done and measuring voltage and current are pretty easy but measuring capacity is not obvious instantaneously — you have to store a history of how voltage changed while charging or discharging. And sometimes you don’t get a full discharge or recharge and the person may use the phone while charging. As a result you have to save a history of multiple cycles to try to average and account for various situations like that. So the result is that you have some driver that saves a value or set of values someplace. And replacing the battery I would assume would not reset this unless there was some Id or value stored in the battery in an eeprom. So my assumption would be that simply replacing the battery may not immediately fix the problem, you may have to totally discharge and recharge your phone multiple times to essentially reset the low pass filtered history of your battery charge discharge cycles. So I guess my question would be if somebody tested if after replacing the battery they instantly had higher performance or not..