mwilk012
Well-Known Member
AGM batteries do not recover well from being fully discharged. Get a new battery (or 2).I do not, thanks for chiming in though, here's some more info.
So I reversed up my drive and left the Jeep in reverse gear by accident, then I went away for 5 nights and then came back to a flat battery.
The battery was reading 3 volts so I connected a zero volt trickle charger to the battery and I could see that it couldn't charge because something was draining it every time it hit about 5 volts.
When I looked into the vehicle I could see that the transmission letters were lit up (D,N,R etc) and that the screen was on with "Press brake + run" or what not and this was all flashing on and off. This was still happening when I moved the fob really far away.
So I connected charger leads from our other car while it was running which gave me enough power and time to shut the car off properly and now it appears to be charging and I will see if it kicks over in the morning.
One question I have, is it safe to disconnect the car battery terminals on the Jeep? I know it's rare to completely disconnect the battery these days so I didn't want to risk it. This would help me trickle charge it without having to fight the computer in the car.
Also a bit of a rant but I'm surprised that in 2023 this would even happen and that the accessory mode wouldn't shut itself off when left in gear or if lower voltage was detected.
And lastly is it even possible to jump start this car with the FOB? I was hitting the button while it was on the jumperleads and it didn't want to kick over.
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