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When you disconnected the battery the disconnect solenoid reverted back to the "store" position. Hit the switch and put the battery back into the loop and power should be restored. It is usually on the left side of the dash OR by the entry door. Rocker style switch. Some are on a bronze colored plate with one for the chassis battery as well. Most are made by Intellitec and say that on the panel. I notice that you said "battery" and this should have two house batteries if you have a slide out. One isn't going to do a good job. Many dealers are just too cheap to install two so they can save $100 or so. We see this all the time here and even in my own shop when people come in. Hope that proves helpful here. Please get back to me if we need to investigate this further as all follow ups are included in our fee.
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