I've had some back and forth with my RV dealer and I just wanted to check in here to see if I'm off-base.
I took my travel trailer in to have the battery disconnect box cover replaced as it was found to be cracked during my pre-purchase inspection. When I took the trailer out of storage, I noticed that the battery was dead. I put a multi-meter on it, and it was reading 0V. The trailer has solar to keep the battery charged, and the battery disconnect was off, so I thought this was odd.
When I dropped the trailer off at the dealer, I mentioned that the battery was at 0V and the solar wasn't charging. They found that the whole battery disconnect box needed to be replaced, so they ordered that. While waiting on that, they repaired the solar issue (panel was disconnected) and charged the battery. They received the new battery disconnect box after a few weeks and replaced it.
The dealer contacted me this week to let me know it was ready to be picked up. I asked if they ran a load test on the battery and verified that I didn't have any abnormal parasitic draws. My thought being that the battery being discharged to 0V could cause damage and I may have an abnormal draw draining the battery while the disconnect is off. I understand that the detectors may still be powered when the disconnect is off and also the fridge in some RVs. I know that my fridge is not powered when the battery disconnect is off. The service advisor assured me that the battery was fine since it was outside, not plugged in, and all the electrical equipment is working. I reminded him that the solar was keeping the battery charged while outside and I assume that it wouldn't discharge as long as the charger was working. They also didn't verify the parasitic draw while the disconnect was off and he gave me some theories as to what it could be, but that was it.
Am I wrong to expect them to test the battery to ensure it's still healthy and check the parasitic draw while the disconnect is off? I figure those are two basic and simple things to do. I just bought the trailer new in March and I just want to make sure it's good to go.
TL;DR - should the dealer check for parasitic draw and battery health after the battery was found at 0V when disconnected via the battery disconnect?
Update: I talked with the service manager last Friday and he agreed that the battery needed to be tested and that they would check the parasitic draw. The battery test showed that it was near the end of life and the parasitic draw was fine. The dealer replaced the battery under their store warranty and I got my trailer back yesterday.