According to the owners manual, the power for the slide comes from the BCC. I'll upload the pages. There is a resettable circuit breaker for the slide power, labeled SOP or SDP on the page. I'd suggest that you may want to only retract one slide at a time in the future.
2006 Damon Daybreak 3276 35'with 5 Star Tuner. 3 200 Amp Lithium batteries and 2000 watt PSW inverter/charger. 2013 Elantra on a Master Tow dolly.