Don't connect directly to the battery. You'll be bypassing the BMS so it won't account for the charge being applied to the battery. Kev

2014 L405 RR Vogue SE 4.4 SDV8 in Corris Grey
2010 L320 RRS HSE 3.0 TDV6 in Stornoway Grey

MPx wrote:

Do you have the deployable tow bar? If so then I'd second MJDronfield and advise using that with a connector from the site shop and the CTEK 5. That's what I do and it works well. Advantages include: not having to get at the battery or terminals which are quite well hidden away; regularly exercising the tow bar mechanism which is liable to stick if ignored for months/years on end; and all cabling external to the car so no seal strip deformation.

That a beauty aja, love the spec.

Thanks caymanblack, I'm glad you like it. I understand my colour choice is not to everyones taste and that more black accents are popular nowadays, but I think it looks quite simple, clean and elegant.

Thank you knwatkins, I was going to insert below the top nut as per the video below at 4.32 - Will it be OK if I do it that way and leave the connector on at all times:

Video example:

(see 4.32)

Connector:

https://www.halfords.com/motoring/battery-...html?_gl=1*148n7qd*_up*MQ..&gclid=EAIaIQobChMIkcTzjdrN9AIV_IBQBh3AuQi8EAQYASABEgKIF_D_BwE

I’ve not used my Ctek, even throughout the lockdowns, since I bought an Optimax Solar charger. The original reason for a solar charger was because I often leave the RR at the airport for a month. It also saves faffing about connecting the Ctek up to the mains.

I connect mine directly to the main battery in the boot using the same connector as above. Then run a wire between/under the rear seat/carpet then down the side of the passenger seat, popping the panel on the dash when required. It’s easy to unplug the panel from the side of the passenger seat and pop it in the boot when not required. Or if it’s just me driving then I drop it in the passenger footwell.

Unlike other solar panels the Optimate regulates the current a bit like a Ctek to meet the needs of the battery.

I use the 10W version but this 20W would probably be better:

https://www.motohaus.com/optimate-solar-20...eries.html

I have connected my Ctek and solar charger to the battery for years on several 405’s with no issue. MY23 D350 HSE
On my 7th RR plus various other JLR vehicles

Thanks Phil - That's interesting, sounds particularly good for airport parking.

I returned to my old L322 at Gatwick early one December morning after a long haul flight home, only to find that the battery was flat. What then followed was a long cold wait for the AA, not something I want to repeat, so will definitely look into that.

Does the CTEK comfort connector still fit under the battery nuts in the same way with both chargers?

Click image to enlarge

I use the same battery connector as above for both the Cteck and Optimate. Although you may need an extension lead if you run the lead for the solar panel through to the front windscreen. MY23 D350 HSE
On my 7th RR plus various other JLR vehicles

Thanks Phil

Looks lovely Aja, look forward to meeting you when we turn her into the dog wagon/uber

Definitely, thanks Craig

Either 5A or 10A CTEK work fine on my twin battery Westie.
The NOCO GB150 I bought before fitting the twin layout is now kept in the boot just in case,
Belt n Braces ? OTT ? Probably but don't need the aggro again of a non start with caravan on back . Forty years of progress. 1972-2012