TomPauls

During this Wuhan virus shut-in, I wanted to pull the car out and make sure the tires were pumped. Car was totally dead. So - how to open the rear hatch? (2015 Energi). I found you may hook up a low-power 12V source to the red covered terminal under the hood (+) to a charger. Mine outputs 2A, which is very safe. I’ll let it run for a while, as the battery only had 3.5V on it. Then the hatch can open. You can then hook up a high-current charger to the battery in the rear. Takeaway - If the car is not operated regularly, like mine wasn’t - for a month, keep measuring the battery voltage under the hood. Also, keep one of those low-capacity jump modules handy to operate the 12V electrics. I’m also working with the Ford service dept. to see if our car has the fatal power draw anomalie. If that battery is allowed to discharge significantly, you will ruin it. Those lead/acid batteries need to be kept at full charge to maximize their life. Mine will have to he replaced, obviously.