I have a 2015 l494 which is mainly used weekends it’s probably on its original battery but after 5 days without use I get the low battery warning.
How long would you say is normal for it to last without use?
I couldn’t go on holiday and leave it at the airport. Currently using a Ctec midweek.
Any recommendations for new battery if needed.
H 2015 RRS DIESEL HYBRID

5 or 6 years is about normal before they start to fail, so, if you are still on the original I would recommend changing it.
As long as you get the same physical size, there's no problem getting one with a higher Amp Hour.
I've used Varta before in my XFR and Bentley GT without any issues. 2015 RRS HSE Dynamic 3.0 SDV6
2015 Aston Martin Vanquish
2010 Jaguar XFR Le Mans
2001 Volvo V70

I have a 2015 RRS too and it’s on its original battery. Used as a 2nd car so sometimes doesn’t get used for 2 or 3 weeks. I always put it on a CTEC charger when I know I’m not using t more often. I’m under the impression that the CTEC charger can also recondition the battery so if it’s on it’s way out it could possibly fix it. I know that if I use the car for a few days then put it on charge it takes almost of full day for the CTEC charging lights to be all fully lit so I assume the car has a lot going on behind the scenes that uses a lot of battery power.

Also don’t forget about the stop/start battery,,I had same problem with one of my L494’s saying low battery,it wasn’t the main battery that was the problem it was the stop/start battery. Andy.
21 Ford Ranger
Gone but not forgotten
Focus RS Red Edition
2015 RRS AB Fuji.
2014 RRS SC Santorini
2016 VW Amarok
2014 RRS AB Fuji
2012 RRS Red Edition Fuji
2015 Nissan Navara
2012 RRS SE Santorini
2008 RRS White
2007 RRS Santorino

Changed my battery in March 2021, the previous one had lasted exactly 7 years .

Boxer's wrote.

"Changed my battery in March 2021, the previous one had lasted exactly 7 years ."

That sounds a good innings to me, did you swap for exact same make and size? if yes what was/is it? I would go for that.

Kevin Rangerover Sport 2016 4.4 sdv8 A/B loire blue.

Thanks for the info, I’ve already done a reconditioning with the Ctek so it’s probably the battery or stop start one .
Does anyone know the model numbers or decent place to order as I think I’ll try to change it myself as circa £500 at a dealership seems a liberty. 2015 RRS DIESEL HYBRID

Boxers wrote:

Changed my battery in March 2021, the previous one had lasted exactly 7 years .