Low Battery. Auto shut down

[drummingj]

Unless the engine is running, it seems I can’t keep the infotainment / music playing in my car for more than a few minutes before it says
‘low battery. System will auto shut down’

Is anybody else familiar with this?

 

[Andy H]

Unless the engine is running, it seems I can’t keep the infotainment / music playing in my car for more than a few minutes before it says
‘low battery. System will auto shut down’

Is anybody else familiar with this?

I was sat in stationary traffic on the motorway the other week with the engine off and the infotainment on for 30+ minutes without getting that message. However, I did have the car on the trickle charger for the previous week. Could it be that your battery capacity was sub-par at the time? I used to get a similar message in my M3 when it had been left in the garage for a a while.

 

[Eagle7]

Many of the factory batteries seemed to be marginally up to the task. Since the Emira came out, especially in the U.K. who got the very first and early production cars, many of the early electrical issues it seemed were due to inconsistent battery performance. When I got my car here in the U.S., I immediately replaced the factory battery with this one from GRP:

Antigravity T6/L2 Lithium Car Battery For Evora/Evora S/400/410/GT/Emira

A direct fit replacement lightweight battery for all 2009+ Evora's and 2022+ Emira! ONLY use a Lipo rated battery charger with these batteries or damage can occur. **We formerly offered the H6 group 48 size batteries for the Evora, it was reported that the H6 size was a snug/tight fit on some...

www.gregsraceparts.com

It fit perfectly and was easy to install. I put it on a LiPo trickle charger when I first got it to make sure it had a full charge. I haven't used the trickle charger since, and that's been since early May. The car has sat for up to a week and a half without being started, and starts right up, no problem.

The AntiGravity battery isn't cheap and we shouldn't have to buy a new battery to get proper battery function for the car, but if you buy one, not only does it work like a champ, you save weight. It's 29 lbs (13 kg) lighter than the factory battery.

 

[mikeee]

I get this issue too.
Only about 2 minutes of listening to audio with the engine off and the Low Battery Auto Shutdown message.

Is this by design and you can only use infotainment with the engine running or does it suggest my battery has an issue?

Or is there a way to keep the audio / infotainment running with the engine off?
It’s useful esp while installing new speakers etc or tweaking audio settings to not need the engine running!

 

[geoffbland]

is there a way to keep the audio / infotainment running with the engine off?

Does Convenience Mode do this? Not tried it myself just reading the manual.