# Maintenance Ares Alpha electronic props are built to be used in rugged environments as airsoft and paintball games. All of them are water resistant, so can be used in any weather conditions. {% hint style="warning" %} Pay special attentions to the ATB Pro and Mini props: They are water proof as long as the cover it's closed! We took precautions to seal the display and the buttons, but still if it's a raining day, we strongly advise to close the top cover. {% endhint %} Be sure to fully charge the batteries before you start the game. Clean the props after the games, especially if was used on a muddy or sandy terrain. If you are using the props for paintball, make sure to clean the paint after each game! If you want to replace the built-in batteries, check the [battery management](/ares-alpha-props-manual-en/battery-management.md) section. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.ares-alpha.com/ares-alpha-props-manual-en/maintenance.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.