Hi @vivien
Welcome to the Stereolabs community.
To ensure optimal performance of the ZED Box Orin NX, it is recommended to use a 4S LiPo battery. The battery’s capacity should be selected based on the required duration. In my opinion, a 5200 mAh battery may not provide a long enough duration and therefore, I suggest using a battery with a capacity of at least 10000 mAh.
To further enhance the experience, I recommend adding a DC-DC converter between the battery and the ZED Box. This will help provide a stable power voltage in the required range of 12V-19V while the battery is discharging.