I'm a University researcher studying muscle behavior during walking. We will have EMGs stuck to people's legs to measure muscle activity, and we want to collect their data using an Intel NUC with a power bank in a small bag.
For this project, we need to somehow have an Intel NUC drawing power from a wall socket, set up our software and connect to devices, then to unplug it so the NUC can travel with a person in a small bag to collect the data. Crucially, the power being given to the NUC can't be interrupted during this transition. I want it to behave like a laptop being unplugged that continues to run on battery power. The NUC requires 140W. The images show a U Green charger we bought figuring it could fill this role, but it turns out that the 140W out is the only way to charge the device.
I assume the only way to do this is to have a power bank such as an Anker Solix, which has a 2-barrel universal input well as a 140W output. That device is bulkier than we would like, though. Before I buy one of those, can anyone clarify that the power will be continuous when the power bank is unplugged? Also, are there any less bulky options that would fill this role?