Welding with 12v batteries

[gudge]

Has anyone ever used multiple 12v car batteries linked in series for welding out on the tracks? What sort of rods would u need and how many batteries do u use? How does it compare to normal stick welding?

[MightyMouse]

I found 24V to be much easier to get the ARC started... 12 V was a bit challenging.

I had some low hydrogen electrodes from a prior welding job that i was advised would be cool for this sort of use.... but it was word of mouth... but it seemed to work.
I was carefull to seal the electrodes in a airtight contained with some desicant to keep them dry - so far so good.

Actually the largest challenge was preparation of the weld area.... no anglegrinder in central nowhere made the useual "Ving" out etc more timeconsuming.

make sure you carry a welding filter - sunnies don't cut it.

[1MadEngineer]

yep , done it waaaaay to many times! Works very well and is super easy. A mix of 2mm & 2.5mm GP electrodes is handy (sealed packet ^^^^as above) for use with 24v, 2.5/3.2mm for 24-36v. remove batteries from vehicles!!! loosen vent plugs (if available) and loosely cover with a blanket (don't let them get too hot!!). Generally 2 batteries in 24v config will allow you to lay down 4-8rods and still start both cars. Get yourself a #12 shade lense (or 2) and a roll of duct tape, cut/tear an opening and duct take the lense in place to make a nice welding mask, or buy a folding leather inspectors sheid. You can also cut or gauge with the rods by pre-soaking them in water, not pretty but it might get you running again.

[hulsty]

Do it far to regularly

[gudge]

Awsome info guys!! Will definalty be making up a set of leads for our up coming cape trip. Battery makita angle grinders will come in handy to I'm thinking.

[turps]

I have never done it in anger. But found using 36v to be alot easier for someone who cant weld in ideal conditions.

Also there are some lovely migs that can be used.

[MogLux]

Im with DGR, iv done way to many times... very easy to do with 24-36 volts only problem you cant regualate the power ... 12volts isnt powerfull enough for 2mm or above rods...

[MightyMouse]

I just used good quality jumper leads ( which i always carry ).... don't forget it you have a winch then there's some extra heavy duty cable that can be borowed if necessay.
Sure an electrode holder might be good.... but worth carrying specially... not so sure.

[oldmate]

Is there any advantage to using a Pringles can as a mask, opposed to a Mr Potato Crisps can?

[MightyMouse]

I'm sure Worcare would be able to advise on who carries the most liability if it all goes wrong.

I'd personally go "chippies"

[hulsty]

Is there any advantage to using a Pringles can as a mask, opposed to a Mr Potato Crisps can?

Product placement and marketing $$$ ahahaha