> For the complete documentation index, see [llms.txt](https://mixmarvel.gitbook.io/dehero_game/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mixmarvel.gitbook.io/dehero_game/ready/game-interface/refill.md).

# Refill

You can charge your Hero NFTs at the charging station to restore their energy. 

![](/files/xxW7GTz8YBKkbta2zzg0)

Click the **\[+]** button of the charging station to select the hero that needs to be charged. 

Click **\[CONFIRM]** to charge. It takes a certain amount of time to charge, and the hero under charing will display the charging time required. 

<div align="left"><figure><img src="/files/02tob7xnJB8tLmLA8cer" alt=""><figcaption></figcaption></figure></div>

<div align="left"><img src="/files/iwH0wvg3gIgXmOGHxCWw" alt=""></div>

**Batch Charging:**&#x20;

Heroes can be collected into batches for charging.&#x20;

**Batch Removal:**&#x20;

Remove all charging heroes.&#x20;

**Charging Slot Unlocked:**

Each player initially has 3 charging slots.

Each time a dungeon challenge is completed, an additional charging slot can be obtained, with 19 slots at maximum.VIP users can obtain 3 additional charging slots, with 22 in total.