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discomog



Member Since: 09 May 2015
Location: Notts/Lincs Border
Posts: 2535

United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Santorini Black
I have both Optimate and Ctek, both work fine and have given excellent service. if I had to buy another then I would go for the Ctek. Defender 90XS SW
Mini Countryman Cooper S
Morgan Plus 8
Post #658105 18th Oct 2017 12:57pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17605

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
I use a couple of CTEK MXS-5 chargers for the smaller vehicles (Defender, Disco, etc) and a CTEK MXS-25 for the larger vehicles.

I have never had a single regret about this choice, they are not cheap, but they are really, really, hard to beat.

The only problem I have had with these (and other, for that matter) smart chargers is that if you have a totally flat AGM (absorbent glass mat) battery of the type typically found on ATVs and motorbikes the smart charger won't charge it, I think the charger cannot detect that the battery is there at all. For these, I usually give them a blast on my old and totally-non-smart charger, and as soon as they have some life the CTEK will then charge them in the usual way. Something to do with the characteristics of AGM batteries I believe.
Post #658112 18th Oct 2017 1:33pm
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SteveG



Member Since: 29 Nov 2011
Location: Norfolk
Posts: 663

2005 Defender 90 Td5 CSW Belize Green
I have a Noco genius g7200, and so far it’s been very good, especially at recovering dead batteries. Does maintenance too.

Was a lot more cost effective when I bought one last year, now seems to have jumped by about £25.

Cheers, Steve
Post #658135 18th Oct 2017 3:15pm
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Coatesyyy



Member Since: 07 Sep 2017
Location: Knutsford
Posts: 423

United Kingdom 
+1 Airflow
Post #658136 18th Oct 2017 3:17pm
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smb



Member Since: 15 Jan 2013
Location: Cheshire
Posts: 1232

United Kingdom 2011 Defender 110 Puma 2.4 XS CSW Santorini Black
Ive gone through about a dozen different types over the years, but since buying a ctek mxs-10 and then adding a mxs-25 they're the only make I will get from now on although I don't expect to have to replace them. Plus Martin(forum owner) offers some handy little accessories for the ctek too. As BW states, they're not cheap, but they're a lot less than all the others Ive wasted money on and they manage to revitalise a dead battery in a fraction of the time that some of the more expensive commercial chargers take. Thumbs Up CTEK all the way Thumbs Up
Post #658139 18th Oct 2017 3:39pm
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tolley



Member Since: 07 Nov 2011
Location: gloucester
Posts: 1117

United Kingdom 2006 Defender 90 Td5 CSW Oslo Blue
Do ctek, do a 6v 12v combined charger
Post #658145 18th Oct 2017 4:12pm
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Swine&Small



Member Since: 20 Mar 2017
Location: Norfolk
Posts: 1223

United Kingdom 
smb wrote:
Ive gone through about a dozen different types over the years, but since buying a ctek mxs-10 and then adding a mxs-25 they're the only make I will get from now on although I don't expect to have to replace them. Plus Martin(forum owner) offers some handy little accessories for the ctek too. As BW states, they're not cheap, but they're a lot less than all the others Ive wasted money on and they manage to revitalise a dead battery in a fraction of the time that some of the more expensive commercial chargers take. Thumbs Up CTEK all the way Thumbs Up

What are theses accessories and where are they published ?
Thanks
Swine 1983 Series 3 Pick up in Marine Blue
1967 Morris Traveller
1966 Morris Convertible
2012 VW T5 Camper
Quod Abundat Non Obstat.
Post #658150 18th Oct 2017 4:43pm
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Martin
Site Admin


Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6641

United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Montalcino Red
Site shop: https://www.disco3.co.uk/shop/tow-electric...c-p45.html  1988 90 Td5 NAS soft top
2015 D90 XS SW
Post #658176 18th Oct 2017 6:07pm
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Swine&Small



Member Since: 20 Mar 2017
Location: Norfolk
Posts: 1223

United Kingdom 
Thanks Martin
Swine 1983 Series 3 Pick up in Marine Blue
1967 Morris Traveller
1966 Morris Convertible
2012 VW T5 Camper
Quod Abundat Non Obstat.
Post #658269 18th Oct 2017 8:52pm
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Pickles



Member Since: 26 May 2013
Location: Melbourne
Posts: 3787

Australia 2013 Defender 90 Puma 2.2 CSW Keswick Green
I have a MXS5. How would I use it to charge the battery on our '13 90?
I mean, do I remove seat base & then connect to battery terminals,..would this do damage, do i disconnect battery,..then what do I have to do with respect to reconnection, or do you guys have a charge point somewhere on your vehicle,..presumably this has some sort of lead permanently connected to the battery, and if this is used when charging (I think I've asked this before), does the seat box cover have to be up for ventilation etc?
Pickles.
Post #658273 18th Oct 2017 9:04pm
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Swine&Small



Member Since: 20 Mar 2017
Location: Norfolk
Posts: 1223

United Kingdom 
Hi Pickles. I have had an auxiliary 12 volt power point. (cigarette lighter type) added to my dash to power a sat nav/ dash cam,and this is a live feed not connected via the ignition so I connect my Ctek via this.
Hope this helps
Swine 1983 Series 3 Pick up in Marine Blue
1967 Morris Traveller
1966 Morris Convertible
2012 VW T5 Camper
Quod Abundat Non Obstat.
Post #658288 19th Oct 2017 1:18am
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ericvv



Member Since: 02 Jun 2011
Location: Near the Jet d'Eau
Posts: 5816

Switzerland 2009 Defender 110 Puma 2.4 SVX Station Wagon Santorini Black
Pickles wrote:
I have a MXS5. How would I use it to charge the battery on our '13 90?
I mean, do I remove seat base & then connect to battery terminals,..would this do damage, do i disconnect battery,..then what do I have to do with respect to reconnection, or do you guys have a charge point somewhere on your vehicle,..presumably this has some sort of lead permanently connected to the battery, and if this is used when charging (I think I've asked this before), does the seat box cover have to be up for ventilation etc?
Pickles.


Pickles, did you forget about your old thread? Laughing
http://www.defender2.net/forum/topic26067.html?highlight=ctek+12s

All answers to your question are in there. If I remember well from your pictures, your truck is either garaged or under a covered carport at your house, so think easiest is to ask your dealer to install the 12S electrics to your truck and then order the Ctek adapter from Martin. You can then very easily top up or maintain your battery without even having to open your truck, same as I do. Full details also in below topic.
http://www.defender2.net/forum/topic20342.html?highlight=ctek

Eric You never actually own a Defender. You merely look after it for the next generation.
http://youtu.be/yVRlSsJwD0o
https://youtu.be/vmPr3oTHndg
https://www.youtube.com/watch?v=_GtzTT9Pdl0
https://www.youtube.com/watch?v=ABqKPz28e6A
https://www.youtube.com/watch?v=rLZ49Jce_n0
https://www.youtube.com/watch?v=XvAsz_ilQYU
https://www.youtube.com/watch?v=K8tMHiX9lSw
https://m.youtube.com/watch?v=dxwjPuHIV7I
https://vimeo.com/201482507
https://www.youtube.com/watch?v=ZSixqL0iyHw
Post #658291 19th Oct 2017 2:53am
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Screbble



Member Since: 26 Apr 2015
Location: Lancashire
Posts: 2109

United Kingdom 2004 Defender 90 Td5 XS CSW Zambezi Silver
Really helpful thread chaps Thumbs Up

As my second optimate is now going to be buried in the garden next to the hamsters, I feel it is time to take the plunge and purchase a CTEK Thumbs Up

Lots of good feedback about these beyond the forum also.

Cheers,

Will
Post #658870 22nd Oct 2017 7:41am
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zsd-puma



Member Since: 09 Aug 2016
Location: Kent
Posts: 2720

United Kingdom 2010 Defender 110 Puma 2.4 USW Santorini Black
blackwolf wrote:
I use a couple of CTEK MXS-5 chargers for the smaller vehicles (Defender, Disco, etc) and a CTEK MXS-25 for the larger vehicles.

I have never had a single regret about this choice, they are not cheap, but they are really, really, hard to beat.

The only problem I have had with these (and other, for that matter) smart chargers is that if you have a totally flat AGM (absorbent glass mat) battery of the type typically found on ATVs and motorbikes the smart charger won't charge it, I think the charger cannot detect that the battery is there at all. For these, I usually give them a blast on my old and totally-non-smart charger, and as soon as they have some life the CTEK will then charge them in the usual way. Something to do with the characteristics of AGM batteries I believe.


I've found that with totally flat batteries in general. The old style brute force chargers seem capable of reviving some completely dead batteries that the various smart chargers can't. I think the smart chargers work by measuring the battery voltage and use that to decided how much power to pump out, if they can't see a voltage they assume there's no battery there. Probably doesn't do the battery much good doing that in the long term, but it can get you out of trouble in the short term.
Post #658948 22nd Oct 2017 3:27pm
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JWL



Member Since: 26 Oct 2011
Location: Hereford
Posts: 3443

England 2002 Defender 110 Td5 SW Coniston Green
I've managed to rejuvinate flat batteries by putting some jump leads across a decent battery then charging them both together. My el cheapo Aldi special has done well using this method Thumbs Up
Post #659006 22nd Oct 2017 6:58pm
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