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Leisure Battery Advice
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fmb123
 


Member Since: 04 Jan 2011
Location: Hampshire
Posts: 125

United Kingdom 2007 Discovery 3 TDV6 GS Manual Zermatt SilverDiscovery 3
Leisure Battery Advice

A friend of mine who owns a discovery 4 needs to be able to run a 13amp 3000kw hotplate for his events business out of the back, and asked how he needs to set up his car, as he obviously doesn't want the engine running.

my thought were that he needs a second leisure battery and 12v to 3kw inverter installed. is this correct?

Will any garage carry out this work, and how much should it cost?

Advice much appreciated

thanks, Freddie
 Current -
2018 Discovery 5 Commercial
1988 3.5 Range Rover Classic
1993 4.6 Range Rover Classic LSE
2006 Audi RS4 Avant

Gone - 2007 Discovery 3 
 
Post #214596114th May 2020 8:54 am
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stew 46
 


Member Since: 01 Dec 2011
Location: cornwall
Posts: 10146

England 2005 Discovery 3 TDV6 SE Manual Siberian SilverDiscovery 3

Think best get a gas hot plate
 -------------------------------------------------
if you cant hold on dont let go , it ill come in handy for something even if you never use it.
D3 SE 05,
110 s wagon 300 tdi SOLD
h top transit
crew cab transit
transit connect
ausa dumper, muck truck .
peljob 2.5 digger
06 L 200 crew cab 
 
Post #214596314th May 2020 8:56 am
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rrhool
 


Member Since: 28 Aug 2014
Location: Norfolk
Posts: 4398

United Kingdom 2007 Discovery 3 TDV6 SE Manual Zermatt SilverDiscovery 3
Re: Leisure Battery Advice

fmb123 wrote:
A friend of mine who owns a discovery 4 needs to be able to run a 13amp 3000kw hotplate


3000 KW ! Shocked that's a big hot plate! Laughing
 Richard


D3 SE 2007. Triumph 2.5Pi 1973. Ferguson TEA20 1948.



Discovery 2 4.0 ES 2001- Gone
Discovery 1 300Tdi ES '95 - Gone
Range Rover Classic '79 - Gone 
 
Post #214596814th May 2020 9:14 am
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NJSS
 


Member Since: 06 May 2009
Location: Catherington, Hampshire.
Posts: 10463

United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Waitomo GreyDiscovery 4

As suggested by Stew gas, or a generator.

NJSS
 Am I Gammon or Woke ? - I neither know nor care.

2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
There are 10 types of people in this world: Those who understand binary, and those who don’t. 
 
Post #214597214th May 2020 9:20 am
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fmb123
 


Member Since: 04 Jan 2011
Location: Hampshire
Posts: 125

United Kingdom 2007 Discovery 3 TDV6 GS Manual Zermatt SilverDiscovery 3

Ha. Sorry meant 3000W!

He also has other items he wants to run so wants a 13amp plug setup.

is 3000w too big to run off a second battery setup? sorry if a stupid question, clueless when it comes to electrics!
 Current -
2018 Discovery 5 Commercial
1988 3.5 Range Rover Classic
1993 4.6 Range Rover Classic LSE
2006 Audi RS4 Avant

Gone - 2007 Discovery 3 
 
Post #214598014th May 2020 9:46 am
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rrhool
 


Member Since: 28 Aug 2014
Location: Norfolk
Posts: 4398

United Kingdom 2007 Discovery 3 TDV6 SE Manual Zermatt SilverDiscovery 3

In theory you could, but running a 3KW device would give a really good battery a very hard time, and you might get 15 mins if you were lucky. Lower quality inverters are less efficient, and you might not get 15 mins at all.
 Richard


D3 SE 2007. Triumph 2.5Pi 1973. Ferguson TEA20 1948.



Discovery 2 4.0 ES 2001- Gone
Discovery 1 300Tdi ES '95 - Gone
Range Rover Classic '79 - Gone 
 
Post #214598114th May 2020 9:49 am
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James W
 


Member Since: 27 Mar 2008
Location: Wirral, UK
Posts: 3056

United Kingdom 

Yeah it ain't going to happen off a 12v system. Nothing practical could provide the amps required for 3kW. Definitely spend £££ on a good 240v generator or preferably, as others have said, gas is the way forward, much simpler and also vastly cheaper.
 D4 XS, gone, much loved, never forgotten
2018 FFRR SDV8 Autobiography - WTF does this button do 
 
Post #214598914th May 2020 10:11 am
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NJSS
 


Member Since: 06 May 2009
Location: Catherington, Hampshire.
Posts: 10463

United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Waitomo GreyDiscovery 4

James W Thumbs Up Thumbs Up

A LPG hotplate makes sense, but if he also needs a 13amp supply he could go for an LPG generator as well.

I have a Honda LPG genny - excellent & can run off mains gas.

NJSS
 Am I Gammon or Woke ? - I neither know nor care.

2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
There are 10 types of people in this world: Those who understand binary, and those who don’t. 
 
Post #214599014th May 2020 10:15 am
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waterbuoy
 


Member Since: 26 Oct 2013
Location: Argyll
Posts: 2855

United Kingdom 2009 Discovery 3 TDV6 SE Auto Stornoway GreyDiscovery 3

As others have said, 3kw/3000w is unviable off a 12v cell. One of our boats has a 1600w inverter fitted but, to run that, it also has a 1080AH deep-cycle lead-acid battery which weighs almost 700kg and cost over £1,200. The alternator required to recharge the battery is also equally beefy.

LPG has to be the way ahead in this case if he does not want an engine running
 Currently 2009 Disco 3 SE and 2013 MY D4 HSE
Previously:
TD5 Defender 110 CSW (230k miles)
300TDi Disco 1 (289k)
4 RR Classics (300-350k each, 2 manual, 2 auto)
110 V8 CSW (220k)
S3 109 hi cap pickup (ex RN)
S2A 88 Safari SW with lpg conversion (bloody lethal) 
 
Post #214600014th May 2020 10:37 am
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fmb123
 


Member Since: 04 Jan 2011
Location: Hampshire
Posts: 125

United Kingdom 2007 Discovery 3 TDV6 GS Manual Zermatt SilverDiscovery 3

Many thanks for the info. Thumbs Up

Looks like gas is the way for him to go!
 Current -
2018 Discovery 5 Commercial
1988 3.5 Range Rover Classic
1993 4.6 Range Rover Classic LSE
2006 Audi RS4 Avant

Gone - 2007 Discovery 3 
 
Post #214600914th May 2020 11:35 am
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