1: 1. Close unused apps and disable background refresh to conserve battery life.

2: 2. Activate low power mode and reduce screen brightness for longer lasting charge.

3: 3. Limit notifications and use Wi-Fi instead of cellular data to preserve power.

4: 4. Enable optimized battery charging and update software for improved efficiency.

5: 5. Invest in a high-quality charging cable and avoid using fast chargers.

6: 6. Turn off excessive location services and disable unnecessary widgets and animations.

7: 7. Use battery saving apps and monitor battery usage to identify power-hungry apps.

8: 8. Regularly calibrate your iPhone battery by fully charging and draining it.

9: 9. Consider investing in a portable charger for on-the-go power when needed.