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Using the LB as a starter battery
Posted: Mon Dec 17, 2012 1:03 pm
by TerryG
What's the best way to use the leisure battery if the starter battery is flat and a Willinton kit is fitted?
Could you just carry a suitable length of cable with a croc clip at either end to bridge the positive terminals (after disconnecting the LB positive lead)?
Re: Using the LB as a starter battery
Posted: Mon Dec 17, 2012 1:14 pm
by Simon Jones
Assuming the LB is earthed to the chassis with a proper suitably rated cable, then you could use a single jump lead to link the two positve terminals together. I've seen some 'professional' conversions that use 13A mains cable as the earth connection on a leisure battery, so if there's any doubt, use both jump leads.
Re: Using the LB as a starter battery
Posted: Mon Dec 17, 2012 1:15 pm
by g8dhe
Use just a normal jumper cable to connect the batteries, you could just use the +ve, but don't do it to often!
Re: Using the LB as a starter battery
Posted: Mon Dec 17, 2012 3:46 pm
by TerryG
Great - thanks chaps!
Re: Using the LB as a starter battery
Posted: Mon Dec 17, 2012 4:20 pm
by mikeonb4c
Have a read of old threads. Not really a good idea to use LB as SB
Re: Using the LB as a starter battery
Posted: Mon Dec 17, 2012 5:19 pm
by TerryG
mikeonb4c wrote:Have a read of old threads. Not really a good idea to use LB as SB
I'm sure you're right - I was just thinking about emergency situations
Re: Using the LB as a starter battery
Posted: Mon Dec 17, 2012 6:08 pm
by mikeonb4c
TerryG wrote:mikeonb4c wrote:Have a read of old threads. Not really a good idea to use LB as SB
I'm sure you're right - I was just thinking about emergency situations
Yea i had to do it once when i left my sidelights on. It was ok as i had a brand new 135ah Energy Bull and a car that started in a flick. But even then i could tell the LB lacked the cranking amps and would have been better left for a bit to transfer its energy to the SB before i turned the starter. And if i'd had a lower power LB, would it have coped?
Re: Using the LB as a starter battery
Posted: Mon Dec 17, 2012 6:37 pm
by philpdr
mikeonb4c wrote:TerryG wrote:mikeonb4c wrote:Have a read of old threads. Not really a good idea to use LB as SB
I'm sure you're right - I was just thinking about emergency situations
Yea i had to do it once when i left my sidelights on. It was ok as i had a brand new 135ah Energy Bull and a car that started in a flick. But even then i could tell the LB lacked the cranking amps and would have been better left for a bit to transfer its energy to the SB before i turned the starter. And if i'd had a lower power LB, would it have coped?
Done it with my 110ah.no problem
Re: Using the LB as a starter battery
Posted: Mon Dec 17, 2012 9:00 pm
by westonwarrior
Re: Using the LB as a starter battery
Posted: Mon Dec 17, 2012 9:12 pm
by Simon Jones
Depends on the type of LB you have. I've got an Elecsol Carbon battery like this which is dual purpose:
http://www.elecsolbatteries.com/product ... l-100.html
Dual purpose, engine start and deep cycle battery. Benefits a range of uses including Boats, Caravans, Motorhomes and engine starting.
Specifications:
Deep cycle and engine start.
Dimensions (LxWxH): 278 x 175 x 190 mm.
Weight: 19.5kg.
Cycle life: 1000 cycles to 80%dod.
Guarantee: full 5 year, maintenence free.
Re: Using the LB as a starter battery
Posted: Mon Dec 17, 2012 9:39 pm
by mikeonb4c
Simon Jones wrote:Depends on the type of LB you have. I've got an Elecsol Carbon battery like this which is dual purpose:
http://www.elecsolbatteries.com/product ... l-100.html
Dual purpose, engine start and deep cycle battery. Benefits a range of uses including Boats, Caravans, Motorhomes and engine starting.
Specifications:
Deep cycle and engine start.
Dimensions (LxWxH): 278 x 175 x 190 mm.
Weight: 19.5kg.
Cycle life: 1000 cycles to 80%dod.
Guarantee: full 5 year, maintenence free.
This is all true and my energy bull can cope fine @ 135ah, but still not to be done casually, would be my advice
