Battery reading from screen is accurate?

[GrabThatBlue]

I think my battery is going to die soon, even after owning the car just for 3 months. The car is built end september 2024 and since then it was sitting on the lot.

When I shipped the car from Vancouver Island to here (around 3 weeks of shipment) the car arrived with a dead battery.

I had to use a jump starter to get the car back to work and I guess since then the battery reads low voltage from the screen.

On top of that I didn't drive the car much, maybe once a week and that also doesn't help. I don't have electricity in the garage so I can't use a trickle charger.

I played with Forscan for a couple of hours last week and that also didn't help the fact that I have a weak battery.
Suprisingly the car never failed starting, even after reading 11.2 volt last weekend.

I drove for over 3 hours and when driving the battery goes from 12.5v tot 13.5v.

After the long drive I parked the car, and now 2 days later it reads 12V when the car is turned off.

I think my battery is not capable of beeing charged to 100% anymore or the reading on the screen isn't accurate. But giving the fact that my car came dead after shipment, I used a jump starter and the screen reads low voltage, I guess I need a new battery.

Also, so you need to register the battery in Forscan after replacing?

Any battery experts here to confirm?

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[86pagt]

After replacing I know in the S550 all you need to do is a BMS reset which I believe is 3 pulls on the high beams and 3 brake pedal presses…but look that up, sometimes my memory isn’t good… or lock the doors and keep the key away for I think 12 hours .. I did the BMS rest in my 2019 when I had to replace the battery. Good luck

 

[GrabThatBlue]

After replacing I know in the S550 all you need to do is a BMS reset which I believe is 3 pulls on the high beams and 3 brake pedal presses…but look that up, sometimes my memory isn’t good… or lock the doors and keep the key away for I think 12 hours .. I did the BMS rest in my 2019 when I had to replace the battery. Good luck

Thanks. I just read the manual on page 307 about the battery. Changing it is now understood. What you said indeed, lock the car and give it 12 hours. It says 8 in the manual but don't want to try it on the minute, so 12 hours is safe.

 

[Magic88]

I don't know how it works on St. Marteen, but you've got 12 month, 12,000 miles warranty on battery. At least we do in the US

 

[GrabThatBlue]

I don't know how it works on St. Marteen, but you've got 12 month, 12,000 miles warranty on battery. At least we do in the US

I don't have 0 warranty on the whole car and there is no Ford dealership here.

I bought the car myself from Canada and shipped it to my island, since we don't have any Ford dealerships or any other dealerships that sell Mustangs.

 

[Magic88]

I don't have 0 warranty on the whole car and there is no Ford dealership here.

I bought the car from Canada and shipped it to my island, since we don't have any Ford dealerships or any other dealerships that sell Mustangs.

Ahh, that bites the big one. Sorry man

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