Every time I end a drive it doesn't matter how long i drive, when I turn off the car the car complains the battery is low. Even if i drive it 3 hours straight it, that message will display. I have tried resetting the Battery Module by disconnecting the power lead on the battery for 1-2 mins. Connected everything back up and I am still recieving the low battery message. I then connected my Batter Tender Plus. It charged the battery for like 8 hrs and it says that everything is good and that the battery is charged. However the car still complains that my car has low voltage.

Its late so if anything i said was unreadable, forgive me.

 

My XK was the same.

I even went out and bought the Jaguar charger made by CTEC and had it connected overnight for several days and it never changed.

I just ignored it.

 

I would test the battery at autozone etc. or have the dealer swap out to a different battery to see if the warning goes away.

 

Those are not symptoms typical of the battery control module needing a reset . it does indeed sound like a battery issue.

 

Perhaps a silly question....water/acid level in the battery ?

 

If you can't resolve the issue with a charger, consider getting an AGM battery.

 

Having been immobilised (fortunately on the driveway), check the earthing point.

 

Good point. I forgot about that issue.

 

Pretty sure the MY2016 F-Type already has an AGM battery, and I think all F-Types do, I know my MY2015 does.

 

yea i did, the dealer checked the battery on their machine and it said all was okay, but the car does not agree. Charged it myself with the batter tender plus and even though the battery tender thinks its fully charged the car again does not agree. So its either the battery has some issue (which my dealer says it doesn't) or my battery module has some issue, false reading a low battery, when in actuality it is fine.

 

I think F-Typical had a good idea. Disconnect the negative battery where it bolts to the chassis and use an emery cloth or paper on the cable end and around the lug it attaches to. Might not work but it won't hurt.

 

Sounds like a charging issue. Maybe.

 

Why not just take it to the dealer and ask them to figure out what is wrong and fix it. Clearly something is not right and Jag should fix it under warranty.

 

Perhaps checking chassis ground points would be better. It's hard to move the vehicle any distance with a true earth ground!!!

Desert Hiker

 

Thanks everyone I took a combination of advice and it appears at the moment the car finally thinks the battery is charged.

1. disconnected the battery completely from the car (positive and negative).
2. Connected the Battery Tender Plus to directly to the standalone battery (overnight, was green light by the time i checked in the morning).
3. Removed the ground wire from the car, sandpapered the cable end and the bolt and reattached.
4. Removed the little plug going into the battery negative terminal (don't know why but it seemed like a good idea.
5. Reattached the battery, negative terminal first, plugged back plug into negative lead. Then attached the positive terminal.

Car came back to life and has not reported a low battery since this morning. Hope it stays this way.

Quick Question: Is anyone running the Blackvue Cam with the Power Magic Pro? Is it working properly for you guys? Have a feeling it could be adding to the battery problems, I have disabled it for now.

 

Anyone so far who has reported trying to run a dashcam in parking mode has reported abandoning the practice shortly thereafter because of battery issues. I think you've identified your own culprit.

 

I have the Power Magic running without problems. Hope I didn't just jinx myself.

 

^ interesting. I've been following that topic because I was interested myself. Gave it up once I saw multiple people report they ran into problems. At what voltage is yours set to cut off? And how long does that allow your camera to run?

 

The saga continues. I am not sure if its the battery, car, or the blackvue. Still trying different combinations. But today, came back to the car after work and there it was the low battery error. Sigh. So I decided to check the voltage level. It was reporting about 12.4-12.5 which seems totally fine. So I disconnect the positive cable for a few seconds, reconnect it and boom the car is no longer complaining. So confused. Drove the car home still no message. Car is now parked in garage with Blackvue Magic Box activated, with settings 12.5V or 12hrs.

 

should already be a AGM iirc. Also the center display memory will store this in a CACHE that always displays till erased! To erase simply lock the car with alarm set and let it sit for at least 15mintues. This clear the cache file. past that you have a issue like either bad battery, battery module etc. also make sure you are properly charging the battery with the negative charge cable clamp NOT hooked up to the negative battery terminal. Use the proper earth ground in the car(its shown in the owners manual if you don't know). the battery monitor is to monitor all voltage going into and out of the battery for proper charging. Hooking up to the negative on the battery make the battery monitor module NOT see that incoming voltage. Also to note the EVERY TIME you replace the battery this module is to be reset with sdd to know that a new battery has been installed and zero all values. YEAH this aint your dads Jaguar...