Save battery with gradual feature disable based on priority.
There are many features provided by mobile but unfortunately all will be running and consuming the battery even when power is less. There should be a way to disable major battery consuming features based on amount of battery remaining
- Disable one SIM if the battery is < 20%
- Disable data on all SIMS if the battery is <30%
- Switch from 4G to 3g (40% remaining) and 3G to 2g (30% remaining )and 2G to NO- G (20% remaining) :) to reduce battery consuption.
- Reduce brightness to 20% if the battery is <10%
- Auto kill apps if the battery is <40%
- Auto disable all notification if battery is < 30%
I can give many more…