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28th May 2012, 4:48 pm | #1 |
Retired Dormant Member
Join Date: Apr 2011
Location: Wolverhampton, West Midlands, UK.
Posts: 253
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Re-Plating Battery Terminals
Has anyone ever tried to re-plate the battery terminals in test equipment, as I have a couple or so AVO’s that have suffered due to the batteries leaking (not by me, I always remove the batteries) I found a website that offer such kits, but I am a bit on the cautious side as to health and safety issues and the price of such kits.
http://www.gaterosplating.co.uk/Brig...lating-Kit.php Or what would be the best remedy for removing the dreadful green contamination from the terminals, I tried a ‘fibreglass pen’ with some success but the nice shiny plating has gone forever, and I wanted to put it back if possible. I bought an AVO 8 Mk5 from a car boot recently for just £1.00 and the battery inside looked like it had exploded, with green gunk everywhere. Paul. |
28th May 2012, 5:40 pm | #2 |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,535
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Re: Re-Plating Battery Terminals
Never tried replating, but I've found a smear of silicone grease applied after cleanup to be effective at maintaining corrosion free status.
Maybe just tin the terminal and buff it a bit before smearing?
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28th May 2012, 7:32 pm | #3 |
Retired Dormant Member
Join Date: Jan 2007
Location: Westbury, Wiltshire, UK.
Posts: 2,451
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Re: Re-Plating Battery Terminals
A drop of Hydrochloric acid eats the green away.
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28th May 2012, 8:17 pm | #4 |
Octode
Join Date: Mar 2011
Location: Sheffield, South Yorkshire, UK.
Posts: 1,453
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Re: Re-Plating Battery Terminals
I smear solder over the bits that actually touch the battery terminals.
- Joe |
28th May 2012, 11:41 pm | #5 |
Hexode
Join Date: Dec 2009
Location: South Manchester, UK.
Posts: 262
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Re: Re-Plating Battery Terminals
While I love the look of those kits I dread to think how you are meant to safely dispose of those chemicals!
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29th May 2012, 4:03 pm | #6 |
Octode
Join Date: Jul 2011
Location: Staffordshire Moorlands, UK.
Posts: 1,477
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Re: Re-Plating Battery Terminals
I'll bet there's an electroplating/metal finishing company somewhere not too far from you who will sort this out...
Steve.
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29th May 2012, 4:25 pm | #7 |
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Re: Re-Plating Battery Terminals
Make new ones form stainless steel? Quite nice thin springy bits can be had from the sliding covers of old 3 1/2" disks.
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29th May 2012, 5:15 pm | #8 |
Dekatron
Join Date: Feb 2007
Location: Lynton, N. Devon, UK.
Posts: 7,082
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Re: Re-Plating Battery Terminals
Soldering connecting wires to them might be fun though...
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29th May 2012, 5:38 pm | #9 |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,535
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Re: Re-Plating Battery Terminals
And the resistance might be noticeable too.
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....__________ ....|____||__|__\_____ .=.| _---\__|__|_---_|. .........O..Chris....O |
29th May 2012, 5:39 pm | #10 |
Dekatron
Join Date: Apr 2012
Location: Worksop, Nottinghamshire, UK.
Posts: 5,553
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Re: Re-Plating Battery Terminals
Use a nut and bolt to fix the wires with a crinkly ring tag.
It will be easy to clean next time the battery leaks too. |
29th May 2012, 5:45 pm | #11 | ||
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Posts: n/a
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Re: Re-Plating Battery Terminals
Quote:
2. Lots of resin cored solder over the prospective joint. 3. Rub soldering iron tip oven the 'tag' when covered in solder After all that (it isn't that hard and can be done on aluminium foil too) some solder will stick, just right for a wrap round joint. The mechanism is that things like stainless and aluminium protect themselves with an oxide layer, don't let it form and give solder the first hit rubbing away the small layer that forms with the irons bit. Quote:
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31st May 2012, 9:50 am | #12 |
Nonode
Join Date: Jun 2004
Location: Norwich, Norfolk, UK.
Posts: 2,543
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Re: Re-Plating Battery Terminals
I've successfully zinc plated with vinegar and a piece of zinc. That terminal would have to be scrupulously clean though, so it might be easier to make a new one, as Merlinmaxwell suggested
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5th Jun 2012, 2:01 pm | #13 | ||
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,535
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Re: Re-Plating Battery Terminals
Quote:
Ordinary steel is about 1.6E-07 ohm-m and stainless around 7E-07 ohm-m.
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