These batteries have usb-c charging with a charging LED and come with a usb-a to 4x USB-C cable. Pretty convenient.

In comparison, the duracell batteries have a pretty good lifetime, but just go dead. They also don't work in the cold.

the nimh batteries are rechargable and somewhat convenient, but have a short lifetime. This seems to be because they are 1.2v and the devices think they're low on power more easily, plus their self-discharge is lots faster than other batteries.