I want to use my Jetson Nano 4Gb as embedded system for slam. I am therefore looking for a possibility to power it on battery. Is it possible to power the Jetson nano with an external smartphone battery through the usb port? If so, what type of power supply should I use: is 5v 3A enough?
The developer kit supports USB-C power supplies of 5V ± 5%, 3A. If your phone uses a USB-C power supply, there is a chance that it is enough to power the devkit. Check its specifications.