wifi uses high power to transmit it has higher data rate.5-10 devices can use the hotspot simultaneously draining battery and heating is common problems .smartphones already use more battery when using the internet common tips ■ if you dont need to connect to any nearby network or devices turn off the wifi and hotspot and ■ also turn off location and sync features from control panel. ■ reduce phone's brightness,change the screen timeout settings as short as possible. ■ turn off auto rotation. ■ you can use bluetooth tethering but speed is slow compared to hotspot but battery drain less and not heated. ■ don't turn on wifi,bluetooth,hotspot all together same time.
Please be assured and to resolve "battery drainage issue" issue kindly follow the given below steps:
1)Battery optimization:-Settings>Select Device Maintenance/Device Care>Optimize>Optimize all options like Battery, Storage and Memory 2) Close background running apps:-Tap on recent key and close the background running application.
If the issue still persist, kindly register your concern in Samsung Members app (Samsung Members app > Get help > Feedback > Error report/ask question). Note: Please send device log files within 15 minutes of issue occurrence along with the exact issue details.
