Your phone battery doesn't have to die by afternoon. Follow these tips:

1. **Keep battery between 20-80%** - Avoid full charges and complete discharges
2. **Turn off always-on display** - Saves up to 15% battery
3. **Reduce screen brightness** - Biggest battery drain
4. **Disable location for unused apps** - GPS is battery-hungry
5. **Use dark mode** - On AMOLED screens, saves significant power