Jump lead question.

[tom2207]

be wary , I have seen every door lock on a Range Rover blown by jump starting another car with it ,,,, cost the RR owner a fair few quid to do someone a good turn , no idea why , but thats how it was.

 

[8ob]

Chaps

Just had an issue on the wagon this morning that would have been easier if I had a set of loooooong jump leads.

Am at Teesport all week lifting loaded containers off of Teesport's own wagons and the problem was fuel related on the donkey engine for the container lifter trailer:

View attachment 474856
By the time our illustrious fitter had the problem solved the (single 12 volt) battery on the donkey engine was flat and needed jumping from his van. What I'd like to do is make up a set of jump leads long enough to reach from the lorry batteries to the end of the trailer, 45-50 foot-ish (13.5-15 metres if you're that way inclined...) with an Anderson connector on one end for 24 volts (the connector at the left of the image isn't connected, there's a live one below it behind the cover) and my sexy adapter for 12 volt work:View attachment 474860
What size of cable is good for such items and where is good to buy it? Plain black cable is okay for me for both leads, I'm intelligent (oh yeah???) enough to mark the crocodile clips relevantly.

And for the record I'm happy to do it and pay for it myself as it might help get another wagon driver out of the brown stuff as well as me. My strange ethos is that if I pay for something it's mine and mine alone. If the company pays for it they can quite rightly do as they wish with it and the one time I need it they'll have used it and not put it back... I like being prepared for any eventuality and I'm happy to pay for it. As I said its strange ethos but it's the way I am.

I rigged up a 12v and a 24v anderson plug on my old tractor unit, marked the 24v one with a dab of paint, the 24volt did the hydraulic power pack on the low loader ramps and the 12v did the donkey engines on the timber trailer and tipping trailer. Kept a long set of jump leads in the cab with crocodile clips one end and anderson the other, short set with andersons both ends for the trailers.

https://www.amazon.co.uk/KRI%C3%8BGER-Battery-Permanent-Installation-Connect/dp/B083JN4CS8/ref=asc_df_B083JN4CS8?mcid=00f6faf59d4634bb8308ed21dca2f4ac&tag=googshopuk-21&linkCode=df0&hvadid=696452099237&hvpos=&hvnetw=g&hvrand=13249344920019974548&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9045834&hvtargid=pla-880112532443&gad_source=1&th=1

Bob

 

[sako243]

I purchased a battery starter pack, haven't uses leads for a long while.

It's got my kids and friends out of more starting issues then it has me.

I've got a reasonably big Noco and it's failed to start a 4l dumper. Mates big Sealey jump pack (owner of said dumper did nothing). Put the JCB with a set of jump leads on a fast idle and started up no bother.

 

[jimbo84]

I've used these in the past for vehicle cabling.

Auto & Marine Electrical Cable | 12 Volt Planet Low Voltage Cable

Auto electric cable. Low voltage single & multi-core auto & marine cable for general wiring, battery / starter wiring, earthing, trailer wiring and in-vehicle sound systems

www.12voltplanet.co.uk

They have a handy voltage drop calculator.

Voltage Drop Calculator | 12 Volt Planet

Use our Voltage Drop Calculator to select the correct Cable for your campervan, motorhome or boat wiring application. Auto and Marine Electrical Components from 12 Volt Planet - Cable Size Calculator

www.12voltplanet.co.uk

You'll need a hefty sized cable to avoid volt drop depending how much current it's pulling.

 

[Ubique]

35mm2 for 'usability', just have a bit of patience and let the donor vehicle run whilst connected for 10-20 minutes or so to charge the casualty battery.
It's good practice to turn off the engine of the donor vehicle just before starting the casualty to prevent any alternator spikes causing problems to either vehicle.

 

[premmington]

I am auto electrician.

I gave up a long while ago with "jump packs". I even made a few up with pairs of odyssey AGM batteries.

--------


I have settled with - Bosch S4 013 95AH 800 CCA with short 3m 35mm jump leads with durite croc clips 200A on them.

Bosch 013 battery has single fold out handle if you really explore the subject..

800 CCA EN - should be enough for anything I have to deal with.


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I got longer leads with Anderson type plugs on them in workshop for Battery Support units.

 

[premmington]

35mm2 for 'usability', just have a bit of patience and let the donor vehicle run whilst connected for 10-20 minutes or so to charge the casualty battery.
It's good practice to turn off the engine of the donor vehicle just before starting the casualty to prevent any alternator spikes causing problems to either vehicle.

I landed at 35mm2 - for same reason - weight...

 

[mr haynes]

I am auto electrician.

I gave up a long while ago with "jump packs". I even made a few up with pairs of odyssey AGM batteries.

--------


I have settled with - Bosch S4 013 95AH 800 CCA with short 3m 35mm jump leads with durite croc clips 200A on them.

Bosch 013 battery has single fold out handle if you really explore the subject..

800 CCA EN - should be enough for anything I have to deal with.


----------


I got longer leads with Anderson type plugs on them in workshop for Battery Support units.

Prefer this method too..
More flexible

 

[MickeyW]

I have a Topdon 20,000 Mah mini jump pack. I bought it on a bit of a whim when I saw it on offer. It has far exceeded my expectations starting big 6 cyl agri tractors with no problem at all. As long as you only have a flat battery to deal with, rather than other starting issues these things are brilliant. I haven't used jump leads since.

 

[Mark 5]

I've got a reasonably big Noco and it's failed to start a 4l dumper. Mates big Sealey jump pack (owner of said dumper did nothing). Put the JCB with a set of jump leads on a fast idle and started up no bother.

It goes to show there are still good reasons why leads are a necessity.

I started a 6l with my pack where leads had failed, I gave it a few moments, it turned and started just great.

 

[voipio]

35mm2 for 'usability', just have a bit of patience and let the donor vehicle run whilst connected for 10-20 minutes or so to charge the casualty battery.
It's good practice to turn off the engine of the donor vehicle just before starting the casualty to prevent any alternator spikes causing problems to either vehicle.

Turning on headlights and demister of the donor and recipient vehicles, prior to disconnection, seems to deal with excessive voltage spikes OK.

 

[awemawson]

I praise the day I bought my (I think it's a) Gooloo 4000 jump pack. My diesel Disco was very sluggish to turn over this morning - very cold, heavy frost on the car which hadn't been driven for several weeks. Started straight up and no great long leads to have to coil up and store away from green eyes.

I've been very impressed with this particular jump pack - holds it charge for months on end and will sequentially start various tractors and diggers. Sits on my desk in the workshop with a label saying when I last charged it (07/10/24 in this case) £95 back last January from Amazon and has dug me out of several holes since then. So much more convenient than jumper cables off another vehicle.