I have two suggestions regarding batteries.
First, please increase the number of batteries we can use each day from 4 to 8.
Secondly, it would be nice to have some kind of indicator that shows if someone is online when you go to request a battery. Sometimes a battery is needed immediately. It would be nice to be able to quickly identify which of your friends in currently online so that you can request a battery from them and hopefully get one quickly.
Thank you.