I think it would be a nice thing if there was a little toast that popped up and let you know when someone sends a battery. Maybe with a click option to send a quick thank you. Like "Laura just sent you a battery! Click to say thank you!" Then they get a toast back that says thank you with a little set of lips or something. I'm sure it could be cleverly programmed to account for genders.
Anyway just something to help us know who sent them. It's an easy thing to take for granted when you're in a studio with a bunch of folks or just have a lot of people added to your bar. Also very easy to forget to check for requests in mailbox, so if it had a little thought bubble that told you that people want batteries, that could be a nice thing as well