Conserve Phone Battery

Your mobile phone is your lifeline, so make it last. Activate 'Low Power Mode' immediately when power goes out. Dim your screen brightness to the lowest readable setting.

Close unused apps running in the background and turn off Wi-Fi and Bluetooth if they are searching for signals that aren't there. This drains battery significantly.

Use test messages instead of voice calls. Texts require far less data and battery power, and they are more likely to get through on congested networks.