Trying to power an iPhone, Apple Watch, and AirPods with one battery

I have an overnight work trip next week, and my iPhone 17 will be running navigation, calls, and the camera throughout the day. I’ll also need to top up my Apple Watch and AirPods.

I know I still need to bring the Apple Watch charging puck. What I really want to leave behind is the multi-port wall charger and an extra USB-C cable. I’m considering a 10,000mAh magnetic power bank with a built-in USB-C cable. My plan is to give the phone a wired charge when it gets low, then rotate between the watch and AirPods afterward.

Does anyone actually use one power bank for all three devices on an overnight work trip? I don’t need everything charging at full speed at the same time. I mainly want to know if 10,000mAh is enough and which cables I would still need to bring.