Here is some tips that save the battery life.You could try it.If it’s not workable,you could change your card.
- Lower Screen Brightness
- Tighten Up Auto-Lock the shortest period for your device, namely 30 seconds.
- Turn off Wi-fi if You Don’t Need It
- Limit Background Refresh for Applications
- Restrict Unimportant Notifications
- Don’t Update Apps Automatically
- Do not Activate Location Service
- Use Low Power Mode