Need expert advice on energy conservation. S9 +, exynos, last off. firmware (sek). The operating mode is standard - the power mode is optimized, synchronization is enabled, Wi-Fi, mob. data, Bluetooth (Galaxy Watch), 2 SIM cards. The last few days, a crazy zhor began at night - in 10 hours 40%. The phone is constantly connected to the router via Wi-Fi. Previously, under the same conditions, there was 15% to a maximum of 20%.
Cache cleaned - does not help. What do you advise?