Rechargeable Fusebox Mobile Phone Backup Battery | eBay Find many great new & used options and get the best deals for Rechargeable Fusebox Mobile Phone Backup Battery at the best online prices at eBay! Free shipping for many products!Brand: FuseboxShipping: FreeSeller Rating: 100.0% positiveLocation: Clemmons, North Carolina What does the Back Up ACC do in a 2003 Honda Odyssey? Aug 01, 2010It is fuse 40 underhood and we looked at the diagram on the back of the fuse box and it says that it the fuse that controls the Back Up ACC. We know that something is wrong because it is drawing current on the battery. The fuse is not bad so we need to know where to start looking.