Dacia Sandero - Battery in standby mode

Honest John Back Room » Technical matters
What is life like with your car? Let us know and win £500 in John Lewis vouchers | No thanks
View Threaded
Sat 17 Dec 2022 20:43
Dacia Sandero - Battery in standby mode - Whichcar

Hello all,

I didn't use my Dacia Sandero for a few days over the sub zero temperatures and first thing I noticed when getting in car was it says "battery now in stand by mode" and it still keeps popping up.
Then when I stop at lights etc it says "priority battery charge"?
What's going on anyone know?

Is it something worry about?

Cars only 11 month old brand new.

Reply | Report as offensive | Link
Sat 17 Dec 2022 20:51
Dacia Sandero - Battery in standby mode - elekie&a/c doctor
Stop start function disabled due to low battery. Have you read the owner manual? I’m sure it’s in there.
Reply | Report as offensive | Link
Sat 17 Dec 2022 20:53
Dacia Sandero - Battery in standby mode - mcb100
I’d guess it’s prioritising getting amps into the battery rather than worrying about ancillaries like stop start.
Reply | Report as offensive | Link
Sun 18 Dec 2022 01:22
Dacia Sandero - Battery in standby mode - Whichcar

Thanks, is that normal what it's doing and nothing to worry about?

Reply | Report as offensive | Link
Sun 18 Dec 2022 01:43
Dacia Sandero - Battery in standby mode - Crickleymal

Thanks, is that normal what it's doing and nothing to worry about?

What does your manual say? Take it for a long run and see what happens.

Reply | Report as offensive | Link
Sun 18 Dec 2022 10:26
Dacia Sandero - Battery in standby mode - Whichcar

Thanks, took it for a very long drive in the hope it would go away but it didn't. Manual says nothing about that message. Although why did they give me a manual for a stephan login rather than a sandero?

Reply | Report as offensive | Link
Sun 18 Dec 2022 10:42
Dacia Sandero - Battery in standby mode - Xileno

Because the Stepway Logan (I think that's what you mean) will share much the same tech and oily bits.

Reply | Report as offensive | Link
Sun 18 Dec 2022 16:09
Dacia Sandero - Battery in standby mode - Brit_in_Germany

The message is described on page 2.14 (at least in the 2020 version) of the handbook. Does it have two batteries, including a smaller one for the start-stop operation? If so, sometimes these get run down and are best charged out of the vehicle, using a smart charger capable of recovering the battery.

Reply | Report as offensive | Link
Sun 18 Dec 2022 13:33
Dacia Sandero - Battery in standby mode - edlithgow

Sounds probably normal.

If you can be bothered and have the kit, I would stick the battery on an external charger.

BUT on a newfangled neurotic car I would probably want to disconnect the battery, and for that you might need a means of maintaining 12V to stop it having amnesia and an identity crisis, so maybe too much aggro.

Probably go away with use.

Reply | Report as offensive | Link
Sun 18 Dec 2022 14:53
Dacia Sandero - Battery in standby mode - sammy1

I was advised by an AA man that you have to run a car for about 30miles to put a decent charge into the battery. It is common knowledge on stop start systems that a low battery disables the system. if your car is only 11 months old and you are using it enough to maintain the battery then either the battery is duff or the alternator not giving it sufficient charge

Reply | Report as offensive | Link
Sun 18 Dec 2022 19:35
Dacia Sandero - Battery in standby mode - Big John

At 11months old I'd have a trip to the Dacia dealer.

Reply | Report as offensive | Link

From which small car to buy at which price point to the best UK-built cars, our Top 10s have the lot. Click now for your shortlist.

Unsure of what to buy? Our Top 10s are here to help you....