A/c not working after changing the battery

Hi - I am Dave, contributing to RepairPal and providing expert advice since 2010. There is a chance that the charging system or electrical system has malfunctioned either before or after the battery concern. A surge could have caused damage, but that's a guess. It could be that low system voltage is causing a concern. There is no "quick fix" to share; you'll have to consult a shop near you for testing and verification of what is going on. https://repairpal.com/auto-repair-near-me Click the link to find some shops near you who can help out!