I assume the lights were on all night. How many times did you open the rear lid?
yep, that’s exactly what I had to boost my battery with. That’s not my question. It is how to prevent future battery drain. I was able to turn off all interior lights except the ones at the bottom of the tailgate so tried to keep doors shut. But kids opened tailgate quite a few times to get things and without a manual tailgate door latch on the outside, the motorized opening probably drained the battery. Anyway to power down the electronics when camping or tail gating??
Well I just had a read of the owners manual. Looks like opening and closing the lift gate more than 5 times can deplete the battery. The manual also says not to leave the liftgate open and does not recommend manually opening and closing it as it can damage the lift function. So I guess camping or tailgating with the gv80 is a no go. That’s really too bad… downside of fully powered vehicles. Not great for North American recreation. Is there a way to temporarily disable the battery safely?
I know you were looking for a solution, but I was more concerned about the cause. I have monitored my GV80's at rest battery, getting 11.8- 12.3 volts at~70 degrees F. This is below the 12.6 V that is supposedly considered the minimum acceptable voltage. I also tested after opening the liftgate and saw a drain from 12.3 to 11.4 volts. I also bought a portable charger. Because of the complexity of the electronics, I wonder if there is excessive parasitic draw, even at rest, suggesting a system malfunction/defect somewhere within the system. Not very confidence inspiring, to say the least-never had a start problem with other similar vehicles even after multiple tailgate openings.
Beg to differ. I did this several times with no apparent problems on the 80 and a Porsche 991.1. A couple of quirks appeared but resolved quickly.
thanks for all the great advice everyone! I think I found a solution. I just used the side of a screwdriver and pushed into the latch hook of the tailgate (mimicking a closed door) and that successfully turned off the tailgate lights and turned off the door-open dash warning. I was able to reactivate the tailgate by using the tailgate button on the dash. So think I will do that next time I go camping. And incase there’s power drain from elsewhere, I’ll have my car booster (same one as linked above) and I’m good to go. Happy camper here. Thanks all!
But just remember what you mentioned before. I too have read about opening and closing the hatch will kill the battery. I suggest you just leave it open.
Jhon, I believe even when opened, it continues to draw battery voltage. It is not just during opening.
 | ||||
 |  |  |  |  |
 |  | |||
