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DISCO3.CO.UK > Maintenance & Mods (D3)

Best battery power supply for update
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Baz31
 


Member Since: 23 Apr 2019
Location: Swadlincote
Posts: 131

2006 Discovery 3 TDV6 SE Auto Unknown ColourDiscovery 3
Best battery power supply for update

Hi
I am keen to update a couple of things on the car, blue tooth update and also it doesn’t seem to have the front sensors turned on yet they are installed and connected.
Bit worried about battery voltage dropping so what’s the best device to keep a healthy 12v supply while doing this.
Or can I simply connect it to another vehicle with jump leads.
Want to do it properly really but think - will I need a £200 charger again.

Thanks
Baz  
Post #237159921st Jun 2024 3:14 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10770

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

Don’t use jump leads.

Any charger should do. Lidi sell um.

Maybe front sensors off as they don’t work.  
Post #237160121st Jun 2024 3:39 pm
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Baz31
 


Member Since: 23 Apr 2019
Location: Swadlincote
Posts: 131

2006 Discovery 3 TDV6 SE Auto Unknown ColourDiscovery 3

Thanks I was thinking that. I have a couple of old school chargers but wouldn’t use them as they have no protection behind them etc.
Will try the middle of Lidl and see what I can find lol.  
Post #237160221st Jun 2024 3:45 pm
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Oxford-boy
 


Member Since: 07 Sep 2015
Location: Oxford
Posts: 1126

United Kingdom 2014 Discovery 4 3.0 SDV6 XXV LE Auto Causeway GreyDiscovery 4

Do you have towbar electrics?

If so you can get an adapter and use a CTek charger (in the appropriate setting) to provide power to the vehicle whilst you work on it.

Plenty on this via Search.

Thumbs Up Jim

2014 Discovery 4 XXV SDV6 Causeway Grey
2016 Discovery 4 HSE Lux SDV6 Loire Blue - now gone  
Post #237160921st Jun 2024 5:45 pm
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Baz31
 


Member Since: 23 Apr 2019
Location: Swadlincote
Posts: 131

2006 Discovery 3 TDV6 SE Auto Unknown ColourDiscovery 3

Thanks. Tried the search but wasn’t sure if a charger was the right thing or if it needed to be a maintainer/ conditioner or bloody shampoo!!

So a ctek 10 amp would be ok?
Thanks  
Post #237161121st Jun 2024 6:14 pm
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Oxford-boy
 


Member Since: 07 Sep 2015
Location: Oxford
Posts: 1126

United Kingdom 2014 Discovery 4 3.0 SDV6 XXV LE Auto Causeway GreyDiscovery 4

If you are using an adapter like this:

https://www.ebay.co.uk/itm/373038718031

Then one of the CTeks which has a live power mode will do it.

The MXS 7.0 certainly does but others will.

Thumbs Up Jim

2014 Discovery 4 XXV SDV6 Causeway Grey
2016 Discovery 4 HSE Lux SDV6 Loire Blue - now gone  
Post #237161321st Jun 2024 6:29 pm
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Baz31
 


Member Since: 23 Apr 2019
Location: Swadlincote
Posts: 131

2006 Discovery 3 TDV6 SE Auto Unknown ColourDiscovery 3

Amazing the live power mode is key
Thank you.  
Post #237161721st Jun 2024 7:31 pm
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ronald.soak
 


Member Since: 29 Apr 2008
Location: London
Posts: 541

England 2005 Discovery 3 TDV6 S Manual Chawton WhiteDiscovery 3

Pete K wrote:
Don’t use jump leads.

Any charger should do. Lidi sell um.

Maybe front sensors off as they don’t work.


I'm a bit surprised at the suggestions here.
I have always understood that the current taken by the D3/4 during engine off/ ignition on diagnostics / upgrades was about 20 amps and therefore can't see a 3-4 amp charger cutting it.
I'd further understood that the control electronics were fussy about voltage flutuations / ripple and a charger with a supply mode was needed.

Am I mistaken or has experience shown that the requirements
are less?.

The Lidl chargers are good value for maintaining the battery when the car is out of use but are only occasionally available.  
Post #237167222nd Jun 2024 1:47 pm
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Oxford-boy
 


Member Since: 07 Sep 2015
Location: Oxford
Posts: 1126

United Kingdom 2014 Discovery 4 3.0 SDV6 XXV LE Auto Causeway GreyDiscovery 4

The CTek mentioned has a supply mode.. Jim

2014 Discovery 4 XXV SDV6 Causeway Grey
2016 Discovery 4 HSE Lux SDV6 Loire Blue - now gone  
Post #237167922nd Jun 2024 3:05 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10770

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

I believe GAP have changed their recommendations. And aren't that fussey these days.

It's just sensible to turn the climate off, turn the interior lights off (hold middle button till it flashes)
turn radio off. And add some from of charger to keep things topped up.  
Post #237168322nd Jun 2024 3:24 pm
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