To conserve battery on your phone, make sure Wi-Fi and Bluetooth are turned off when not in use. Turning down the screen brightness and turning off the notification lights can help as well.
- To turn off Wi-Fi: System>Settings>Connectivity>WLAN>turn Off
- To turn off Bluetooth: System>Settings>Connectivity>turn Off
Why doesn't the battery last longer?
In many ways, CDMA was better for voice phones, especially in regard to power consumption. There are two reasons why the battery of a Sunbeam phone running on VoLTE will not last as long as a CDMA phone running an older operating system.
The first reason is that the BasicOS operating system is based on AOSP, which is a much larger and more complex operating system. This is like a V12 engine compared to a four-cylinder engine in older phones. Even when idling, it still consumes more power.
The other reason is that the VoLTE signal is a packet-switched connection and requires far more processing than the older circuit-switched CDMA signal. Both of these things mean that the good old days of batteries lasting all week are gone forever unless you have a massive battery.
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