Hardware
Mobile Phone | Battery Care
More Uptime for your Mobile Phone
Tips for Battery Treatment: No more Half-Truths
The following applies to current Devices with Lithium-Ion Batteries
- new batteries may be used immediately without charging
(usually delivered ex works with around 70% charge) - Heat is the biggest enemy of lithium-ion batteries
- each complete charging cycle shortens the service life
- recharging is better than discharging completely (if possible, charge at 30% at the latest)
- deep discharge shortens the service life considerably, possible immediate defect
- there is no memory effect
- specially designed power adapters and devices switch to direct power supply at 100 % battery charge and bypass the battery = battery saving
- for devices you do not use at home only, it is better not to charge them up to 100%, but only up to 70%, even with a suitable power adapter (mentioned above), in order to optimise battery life
Battery Performance – Theory and Practice
Prolonged use of the mobile phone (maintaining the address book, sending text messages, navigation, playing games, etc.) requires a lot of energy because the display and power-hungry backlight (LCD) are switched on for a long time.
If GPS is used frequently, the battery is drained very quickly.
Privacy protection: Only grant authorisation for localisation to apps that require it for (more secure) operation (maps/banking). Setting: “When using the app”. Default setting: “Use location: Off”.
WLAN no longer consumes as much energy in modern smartphones as it did in earlier models and whether Bluetooth is switched on no longer plays a role in today's devices.
For security reasons, you should still only leave Bluetooth and WLAN switched on when you really need them. In GrapheneOS, you can set Bluetooth/WLAN to be automatically deactivated after x minutes of non-use.
Manufacturer Information on Standby Times is pure Theory
The manufacturer's specification for the maximum standby time is determined under non-practical laboratory conditions:
The device is lying unused in a place with the best reception.
Bluetooth, GPS, WLAN and display are switched off!
Only system applications required for operation are running.
This means that fantastic values of over 300 h are possible!
In practice, the specified maximum talk time can only be achieved directly after a full battery charge, even with the best reception.
Reference
Battery Management – Power Management for Power Users