Member Since: 06 Nov 2004
Location: Hook Norton
Posts: 18561
Links to battery chargers on Amazon
With winter on the way it's important to ensure your battery is in tip-top condition with a advanced battery charger (aka conditioner). Keeping the battery charged can extend the life of the battery especially during winter.
In the site shop you will find a range of adapters which allow you to very simply connect up to the towing electrics socket (13 pin or 12S socket) to charge your Discovery's battery.
These adapters remove the need to open the bonnet to connect up a charger or fit another externally-accessible socket.
NOCO chargers are relatively new on the market but we already do a towing electrics adapter for them
Any other chargers or deals for these ones that you spot on Amazon please share and I'll update this post 06 D3 SE / 15 LR D90 XS SW / 88 LR 90 Td5 / 68 BMW 2000 ti
Any issues with the site let me know!
Last edited by Martin on 30th Oct 2019 10:18 am. Edited 1 time in total
21st Oct 2019 12:32 pm
mjom89
Member Since: 13 Sep 2011
Location: Essex
Posts: 593
I need to upgrade to a proper charger/conditioner. You haven’t mentioned the CTEK MXS 10 which is the one I had my eye on. Is this overkill?
29th Oct 2019 7:56 pm
Martin Site Admin and Owner
Member Since: 06 Nov 2004
Location: Hook Norton
Posts: 18561
Fair point - now added
Which you go for depends on budget and needs, but the 10 is worth having listed 06 D3 SE / 15 LR D90 XS SW / 88 LR 90 Td5 / 68 BMW 2000 ti
Any issues with the site let me know!
30th Oct 2019 10:18 am
mjom89
Member Since: 13 Sep 2011
Location: Essex
Posts: 593
Bought the MXS 10 today and I think the Disco knew... I tried to leave work this evening and it gave a half hearted attempt at spinning over and failed to start. I will see if the CTEK can revive it but I suspect it needs a new battery.
30th Oct 2019 6:06 pm
Johnny Oxford
Member Since: 14 Dec 2014
Location: Chinnor
Posts: 531
I would like to order a charger and adapter today, I will need to check which towbar electrics I have as have only had the D4 for a week.
One question I have, if charging like this does the second battery also get charged?
Also any member recommendations as to which charger/adapter combination to go for? Not sure I understand the difference between the 5, 7 amp versions etc of the CTEK.
TIA.2014 D4 HSE Facelift Corris Grey
Previous :
Discovery Sport SE (awful)
56 plate D3 HSE TDV6 Zermatt Silver
Defender 90 200tdi
2nd Nov 2019 6:19 am
Gary_P
Member Since: 03 May 2016
Location: Kent
Posts: 1656
There is a general consensus on here that the more powerful the charger (amps) for when the battery is in trouble. I’m sure someone will explain the situations when this is important. However, I believe that there is a limit to the ampage charge you can apply via the electric tow connection, so check that.
I chose the 7 amp because I felt it a good compromise between power and price, but also it has a 5 year guarantee where as the 10 & 25 have a 1 or 2 year guarantee (not sure). Note, I don’t have a tow socket so don’t charge via that method so please check.
I top up charge my battery every 2-3 weeks because of the driving I do. When my stop/start stops kicking in I know it needs a long drive or a top up charge.
CheersGary
-------------------------------------------
Discovery 4 HSE 2016MY
2nd Nov 2019 10:03 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 14118
Johnny Oxford wrote:
I would like to order a charger and adapter today, I will need to check which towbar electrics I have as have only had the D4 for a week.
One question I have, if charging like this does the second battery also get charged?
Also any member recommendations as to which charger/adapter combination to go for? Not sure I understand the difference between the 5, 7 amp versions etc of the CTEK.
TIA.
Hi
I have a Tmax split charge system fitted and indeed the aux battery gets charged at the same time via the 12s socket
Highly recommend the adaptors from Martin
Click image to enlarge
2nd Nov 2019 10:29 am
Johnny Oxford
Member Since: 14 Dec 2014
Location: Chinnor
Posts: 531
hi could you explain the "split charge" system? Not sure what that means.
I just got the 7 amp ctek today from Amazon, if I buy the towbar adapter will it charge both batteries? If not then I think I will just use the croc clips that came with it.
Is the split charge system a modification?
TIA
Johnny2014 D4 HSE Facelift Corris Grey
Previous :
Discovery Sport SE (awful)
56 plate D3 HSE TDV6 Zermatt Silver
Defender 90 200tdi
3rd Nov 2019 8:20 pm
M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8223
You have not got split charge, it is an aftermarket fit, but with SS you have two batteries, the second small battery will not be charged via the tow socket, do not let this put you off buying the tow bar socket adapter as it is absolutely indispensable for convenience.
A new charger will come with croc clips as standard, which can be used on the small battery without disconnecting it if needed, the small battery does not need topping up as often as the cranking battery. I use my tow bar adapter every week in winter once a month in summer, just plug it in and leave overnight, you cannot overcharge a battery no matter how long you leave it connected, a fully charged battery life is twice as long as a battery that is under charged and for this reason alone it is worth buying the adapter.
If the SS light comes on to say it is not available the small battery needs charging, is SS does not work with no warning light on the main battery is under charged, if the SS does not work after charging overnight the battery needs replacing.
Any of the chargers will do the job, the lower the amps the longer it takes to charge the battery, the 7amp is a good compromise, neither will overcharge regardless of how long they are connected even days. It can when others can't,
It will when others won't,
It goes where others don't.
4th Nov 2019 8:28 am
Gary_P
Member Since: 03 May 2016
Location: Kent
Posts: 1656
M3DPO
Do you know the maximum ampage charger that can be used through the tow socket? I don’t have one so don’t charge via that method just want to make sure the tow socket will take the 7amps of Johnny’s charger.
CheersGary
-------------------------------------------
Discovery 4 HSE 2016MY
4th Nov 2019 12:19 pm
Gary_P
Member Since: 03 May 2016
Location: Kent
Posts: 1656
Just read the tow socket advert. Looks like it’s 15 amps.Gary
-------------------------------------------
Discovery 4 HSE 2016MY
4th Nov 2019 12:21 pm
Martin Site Admin and Owner
Member Since: 06 Nov 2004
Location: Hook Norton
Posts: 18561
Yes it's 15A 06 D3 SE / 15 LR D90 XS SW / 88 LR 90 Td5 / 68 BMW 2000 ti
Any issues with the site let me know!
4th Nov 2019 12:25 pm
Johnny Oxford
Member Since: 14 Dec 2014
Location: Chinnor
Posts: 531
thanks all, very useful info, will order socket later today, just need to check the tow plug on my D42014 D4 HSE Facelift Corris Grey
Previous :
Discovery Sport SE (awful)
56 plate D3 HSE TDV6 Zermatt Silver
Defender 90 200tdi
4th Nov 2019 1:06 pm
RDR
Member Since: 24 Mar 2013
Location: Derbyshire
Posts: 2260
@martin
I just checked and might have missed it but have you a similar thread on the D5 forum? in my experience so far the D5 is far more vulnerable to low power issues. Leaving it for just a few days sometime triggers a low power warning.
Would be worthwhile promoting the stores adapters over there.MY06 S - Gone but not forgotten
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9th Nov 2019 10:03 am
mark the spark
Member Since: 22 Jun 2011
Location: southampton
Posts: 2521
appreciate that the larger capacity will do the job better but what are people typically buying for the disco
its a fair price hike from the 5.0 to the 7.0 so is the 7.0 or even the 10 worth the extra or is it overkill for occasional use ?MY05 SE D3 Manual my first LR what a car
MY10 HSE D4 auto
MY14 XXV more buttons than the spaceshuttle
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