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Caterham

Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6298

2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey

I've got a c-tek (plugged in now as it happens) but I have a tendency to forget / can't be bothered to plug it in regular.

I'm thinking of extending the plug / loop terminals such that the loops are permanently bolted to battery and plug resides under seat for easy connection (would utilise same grommet as for heated seats)

will keep an eye on just how long battery lasts but seems average so far is 2-3 weeks.

not sure how such a small drain is possible with alarm and other stuff in 'sleep mode' - I wouldn't be surprised if alarm alone was in excess of 10mA ?

20th Feb 2020 11:15am

muddypaws

Member Since: 22 Jan 2013
Location: Leicestershire
Posts: 122

2009 Defender 90 Puma 2.4 SVX Station Wagon Santorini Black

That's exactly what I am planning when I get a 'roundtoit'!

- bit of a pain pitting the CTEK on otherwise but the kit works really well for a tired or unused battery (mine's 10 years old). Richard

Defender 90 SVX

20th Feb 2020 5:42pm

LR90XS2011

Member Since: 05 Apr 2011
Location: bickenhill
Posts: 3641

2011 Defender 90 Puma 2.4 XS CSW Galway Green

Caterham wrote:
I've got a c-tek (plugged in now as it happens) but I have a tendency to forget / can't be bothered to plug it in regular.

I'm thinking of extending the plug / loop terminals such that the loops are permanently bolted to battery and plug resides under seat for easy connection (would utilise same grommet as for heated seats)

will keep an eye on just how long battery lasts but seems average so far is 2-3 weeks.

not sure how such a small drain is possible with alarm and other stuff in 'sleep mode' - I wouldn't be surprised if alarm alone was in excess of 10mA ?

that's exactly what I have done connector is next to the passenger door, I can close the door on the charger cable and the door seal is happy to allow the door to lock DEFENDER 90 TDCI XS,

I hope everyone is well and your land rovers make you happy

20th Feb 2020 7:25pm

hornet

Member Since: 04 Jan 2010
Location: Western Europe
Posts: 361

Re: Averages - and batteries

Caterham wrote:
folk. just wondering what is typical.

I used to use the defender as an everyday motor, although I'm sure there may have been occasions when it was left for a week or so (holidays for example - although can't specifically recall) and always started.
[...]
Any advice, suggestions, bench marks etc welcome.

Wouldn't it make sense to measure electricity consumption at rest first? Roughly it then would be possible to calculate the duration with the capacity of battery....

12th Mar 2020 2:05pm

Supacat

Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018

2013 Defender 110 Puma 2.2 XS DCPU Keswick Green

seriesonenut wrote:
My 110 came to me with a new battery almost three years ago and only now it feels sluggish if parked for over a week or so. Answer CTEK charger via externally mounted 'comfort' connector. I also have the benefit of the LED lights showing the status externally when not connected

Click image to enlarge ctek by Richard Holmes, on Flickr

That’s a cracking secondary use for the snow cowl

Really not a fan of putting cables in doors and closing them ~ Landrover doors especially.

12th Mar 2020 4:25pm

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 8023

2011 Defender 110 Puma 2.4 USW Stornoway Grey

I dont worry about cables catching in doors, the gap is massive on most defenders. In fact I am not sure my dog wouldnt climb out through the door gaps if she wasnt so well behaved. Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop

12th Mar 2020 4:40pm

Co1

Member Since: 19 Aug 2018
Location: North Yorkshire
Posts: 3674

12th Mar 2020 6:27pm

Caterham

Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6298

LR90XS2011 wrote:
Caterham wrote:
I've got a c-tek (plugged in now as it happens) but I have a tendency to forget / can't be bothered to plug it in regular.

I'm thinking of extending the plug / loop terminals such that the loops are permanently bolted to battery and plug resides under seat for easy connection (would utilise same grommet as for heated seats)

will keep an eye on just how long battery lasts but seems average so far is 2-3 weeks.

not sure how such a small drain is possible with alarm and other stuff in 'sleep mode' - I wouldn't be surprised if alarm alone was in excess of 10mA ?

that's exactly what I have done connector is next to the passenger door, I can close the door on the charger cable and the door seal is happy to allow the door to lock

12th Mar 2020 8:09pm

Caterham

Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6298

Re: Averages - and batteries

hornet wrote:
Caterham wrote:
folk. just wondering what is typical.

I used to use the defender as an everyday motor, although I'm sure there may have been occasions when it was left for a week or so (holidays for example - although can't specifically recall) and always started.
[...]
Any advice, suggestions, bench marks etc welcome.

Wouldn't it make sense to measure electricity consumption at rest first? Roughly it then would be possible to calculate the duration with the capacity of battery....

it would and I should.
what are most people seeing as an electrical load when parked up?

12th Mar 2020 8:10pm

custom90

Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20348

Pretty much all Defenders currrent draw at rest parked up varies.

I would say between 12 and 30mA would be pretty typical, you can always test your own Defender with a Multimeter too of course. $W33T $0U7H3RN $UG4R
🇬🇧🏴󠁧󠁢󠁥󠁮󠁧󠁿🏴󠁧󠁢󠁷󠁬󠁳󠁿🏴󠁧󠁢󠁳󠁣󠁴󠁿🇮🇪🇺🇸⛽️🛢️⚙️🧰💪

12th Mar 2020 8:21pm

seriesonenut

Member Since: 19 Nov 2014
Location: Essex
Posts: 1211

Supacat wrote:
seriesonenut wrote:
My 110 came to me with a new battery almost three years ago and only now it feels sluggish if parked for over a week or so. Answer CTEK charger via externally mounted 'comfort' connector. I also have the benefit of the LED lights showing the status externally when not connected

Click image to enlarge ctek by Richard Holmes, on Flickr

That’s a cracking secondary use for the snow cowl

Really not a fan of putting cables in doors and closing them ~ Landrover doors especially.

Exactly, no holes needed drilling in the Defender and easy enough to use without any faffing about. 2010 XS USW
1957 Series One 88 diesel
1958 Series One 88 4x2

12th Mar 2020 8:23pm

Slideywindows

Member Since: 09 Sep 2016
Location: North Essex
Posts: 1283

One of the Ninetys I bought came with a little solar powered battery maintainer.

Currently on a Series One diesel, just inside the windscreen with the wires going out the door and under the bonnet.

Seems to keep the seldom used vehicle and its (two 6 volt) batteries fresh, but of course, you have to park outside.

12th Mar 2020 9:48pm

seriesonenut

Member Since: 19 Nov 2014
Location: Essex
Posts: 1211

That's interesting Charles. I keep the fire engine on charge (maintenance). I fired it up last weekend after having to park it up with no access for about 7 weeks. It started but only just. I guess the cold weather of late did not help. 6 volt batteries are expensive so not keen to replace anytime soon! 2010 XS USW
1957 Series One 88 diesel
1958 Series One 88 4x2

12th Mar 2020 10:31pm

Mongolia

Member Since: 23 Jun 2013
Location: Toulouse
Posts: 45

For a long storage, you can also disconnect the battery.

13th Apr 2020 3:21pm

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