how about a single use battery recipe that uses uranium? it makes single use batteries less useless and appeases the users that refuse to build a reactor and as a result insist an alternative use for uranium be added.
It should be like a regular battery but once it hits 0 it dissapears (Because of the amount of energy it has), should have an efficiency of 0.3-0.6 so people are more encouraged to use the nuclear reactor instead.