There is a data cable line in the package, which can directly charge the battery case without purchasing separately.

Features:
1. This battery case is only fit for iPhone 17 Pro Max, Not works with other model.
2. Long Battery Life: add more than battery life to For iPhone 17 Pro Max. You can going through out the day, essential for traveling, camping, road trips or business trips.
3. 4 LED indicator will show you how much power is left (25%-50%-75%-100%).
4. Full protection to corners and sides, protecting your iPhone from drops and impacts, not including phone screen.

How to use:
1. Just fully put For iPhone 17 Pro Max into the battery case.
2. Press 3 second the power button of the battery case, It will start charge your Phone. Press 3 second the power button again, the case will stop charging.
3. This battery case contains a data cable. When your battery case needs to be charged, you can use it directly.

Specifications:
- Capacity: 10000mAh.
- Input: 5V/1A
- Output: 5V/1A
- Compatibility: For iPhone 17 Pro Max
- Charging Power Level:
1 Light = 25%,
2 Lights = 50%,
3 Lights = 75%,
4 Lights = 100%

Note:
100% support wireless charging.
100% support CarPlay.
100% support car charger.

Package Included:
1 x 10000mAh Battery Case for iPhone 17 Pro Max
1 x User Manual