paul the 6th
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| posted on 12/10/09 at 10:22 PM |
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Electrolysis rust removal... battery chargers with smart mode are a no go
I've read the countless tutorials on rust removal via the electrolysis method and even had a bash with kev's (wrigglypigs) charger which
whose terminals were on their last legs...
I remember reading that modern "smart" battery chargers are no good as they detect what they think is an overload or 'short'
and stop charging...
This one looks simple enough a charger to do the job but I thought it best to check if it's going to try and protect me from myself?
http://direct.tesco.com/q/R.205-0146.aspx
thanks in advance
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Chippy
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| posted on 12/10/09 at 10:30 PM |
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For £15 it can't be that smart can it, worth a bash I'd say, plus you get 30 club card points.  Cheers Ray
To make a car go faster, just add lightness. Colin Chapman - OR - fit a bigger engine. Chippy
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ashg
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| posted on 12/10/09 at 10:35 PM |
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i have got the same one works a treat. it has a light that goes from red to green as the battery charges. its really handy as when the sacrificial
metal gets cruddy the light goes green. once you grind the sacrificial metal back so its clean the light goes red again.
Anything With Tits or Wheels Will cost you MONEY!!
Haynes Roadster (Finished)
Exocet (Finished & Sold)
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paul the 6th
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| posted on 12/10/09 at 10:36 PM |
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top banana, cheers guys 
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BenB
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| posted on 13/10/09 at 08:54 AM |
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If all else fails if it is a "smart" charger (price of parts nowadays is so small you never can tell) just take it apart and take the
output wires from the transformer straight to the croc clips. Obviously don't do this if you don't know what you're doing!!
don't want to suddenly find you've made your electrolysis solution 240v AC. Won't work that well and could have shocking
consequences!
Of course you could just use mollasses 10:1 and leave it to soak See my photo archive!
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Peteff
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| posted on 13/10/09 at 09:29 AM |
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Could you connect it to a battery and run from the battery to your tank ?
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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dinosaurjuice
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| posted on 13/10/09 at 09:33 AM |
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quote:
Originally posted by BenB
If all else fails if it is a "smart" charger (price of parts nowadays is so small you never can tell) just take it apart and take the
output wires from the transformer straight to the croc clips. Obviously don't do this if you don't know what you're doing!!
don't want to suddenly find you've made your electrolysis solution 240v AC. Won't work that well and could have shocking
consequences!
Of course you could just use mollasses 10:1 and leave it to soak See my photo archive!
wont wires stright from transformer give AC? i thought electrolysis required DC.
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coozer
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| posted on 13/10/09 at 09:45 AM |
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I had the same problem and now have a better power supply...
Its a 17v 5amp thing off a LCD monitor, it used to power my pc monitor that went to the tip a while ago.
Sturdy, good output, live is bolted to the plate and the earth is bolted to a pair of mole grips that ensure a good connection to the part.
1972 V8 Jago
1980 Z750
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BenB
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| posted on 13/10/09 at 10:17 AM |
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quote:
Originally posted by dinosaurjuice
quote:
Originally posted by BenB
If all else fails if it is a "smart" charger (price of parts nowadays is so small you never can tell) just take it apart and take the
output wires from the transformer straight to the croc clips. Obviously don't do this if you don't know what you're doing!!
don't want to suddenly find you've made your electrolysis solution 240v AC. Won't work that well and could have shocking
consequences!
Of course you could just use mollasses 10:1 and leave it to soak See my photo archive!
wont wires stright from transformer give AC? i thought electrolysis required DC.
Yes, it's true, I should be more specific. Equally, anyone who knows enough to be mucking round with transformers knows to take it off from the
rectifier wich usually comes immediately after the transformer.... But it's true, you don't want AC electrolysis
I hacked my old battery charger but strapping on a dimmer switch to the top and using it as a hot-wire cutter for my model plane wings. Works very
nicely.
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Bluemoon
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| posted on 13/10/09 at 11:21 AM |
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^^^ Not sure I would do that ben, the transformer might overheat as the dimmer switch creates a loads of harmonics.. But you might find it works fine
(just watch the temperature of the transformer core)..
Dan
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BenB
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| posted on 13/10/09 at 11:39 AM |
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Yup. I did suspect I'd knacker the xformer but so far so good Runs cool as cucumber....
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Mike S
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| posted on 13/10/09 at 12:59 PM |
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A dimmer switch on the transformer should not give any problems.
Most low voltage lights that use a magnetic transformer (as opposed to electronic ones) are fine with a standard leading edge phase cut dimmer (which
is what nearly all domestic dimmer switches are) this is no different to one of those.
The only time you will get a problem is if one of the thyristors or SCR's blows, then you can get what is called "half waving" this
has the effect of producing a d.c. component into the transformer.
This energy is not transformed as it is d.c. but it is dissipated as heat and will eventually blow the transformer.
So, as long as the dimmer is ok, should be no problem at all.
Cheers
Mike
There are more horses' asses in this world than there are horses
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