The in-laws' lake house has a previously used, now unused 10-30,(laundry room was repurposed) on the front a front room in the house. anyone know if electricians would generally kill the juice to an old outlet like this? Or would it typically still be live? if that outlet is dead...or I'm just short of being able to reach it...I could charge via the 5-15. again though, the place is old....would I typically get less charge out of that kind of outlet....like maybe 2 mph...rather than 3ish? We'll be there 2 nights...but if that backup charge is only 2 mph...then I may have a problem getting enough juice to get the fam back home. So... remodeled room kills juice to 10-30, or typically left live? old place in the boonies charges slower via 5-15? Would using a 50 ft extension cord for the 5-15 typically reduce the charge rate as well? thanks again!