I bought my Samsung Galaxy A15 4G a few days ago(last week, Sept 2, to be exact), But, since I updated my phone to One UI 6.1, the battery keeps draining faster...it usually takes about 36 minutes just to charge over 95% to 100% but I'm using an 25Watts charging adapter. Any one know why is it happening?
Adaptive Battery: One UI 6.1 has an Adaptive Battery feature that learns your usage patterns. However, it might take some time to optimize. Try disabling it and see if it improves: Settings > Battery > Adaptive Battery.
Battery Calibration: Update the battery calibration: Let the battery drain to 0% and then charge it to 100%. Repeat this process a few times.
Charging Algorithm: The new update might have changed the charging algorithm. Try using a different charger or cable to rule out any issues.
Power-Hungry Apps: Check for apps consuming excessive power: Settings > Battery > Battery Usage. Close or uninstall unnecessary apps.
Software Bug: It's possible that the update introduced a bug. Try resetting your phone to its factory settings or visit a Samsung support center for assistance.
