Well then you need to tell him what the issues are & and how much it will cost - give him some choices - new or reconditioned battery or a new model used electric w/reconditioned battery & follow some of the good suggestions that have been offered in this thread.
Tell him it is time to get his short arms into his deep pockets - no real choice.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.