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mistermsk
Groupie in Training
Joined: 24 May 2010
Age: 40
Posts: 44
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 Posted: Sun Dec 16, 2012 3:46 pm Post subject: Battery Acid on Mothetboard of an Amiga 2000 |
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| What is the best way to clean battery acid off an amiga 2000 motherboard? |
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edd_jedi
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Joined: 09 Apr 2010
Posts: 11
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| Posted: Tue Dec 18, 2012 1:32 pm Post subject: |
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| I recently had to do this repair on my A4000. I used lemon juice to neutralise the alkaline (a real lemon, not synthetic stuff) and then used pcb cleaner from Maplin to clean it all up. |
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djos
Groupie in Training
Joined: 01 Jun 2012
Posts: 40
Location: Adelaide, South Australia
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| Posted: Wed Dec 19, 2012 4:21 am Post subject: |
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Im really not sure why folks use lemon juice, it's acidic too! (ever heard of citric acid?) 
Get medical or electronics grade Isopropyl Alcohol and use that with cotton tips or/and a toothbrush to remove the battery acid.
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Adelaide  &  user group
Amiga 1200 w/ KS1.3, ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD
Amiga 500 w/ KS1.3, 512k Chip-Ram, 512k Slow-Ram, 8MB Fast-Ram, FDD Boot Selector, HxC RevC SD Floppy Drive, a1010 External FDD |
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edd_jedi
Newcomer
Joined: 09 Apr 2010
Posts: 11
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| Posted: Wed Dec 19, 2012 8:42 am Post subject: |
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| djos wrote: | Im really not sure why folks use lemon juice, it's acidic too! (ever heard of citric acid?)
Get medical or electronics grade Isopropyl Alcohol and use that with cotton tips or/and a toothbrush to remove the battery acid. |
The battery doesn't have acid in it - it is alkaline. Hence why you use lemon juice, which is acidic and neutralises the alkaline on the motherboard (you will see it fizz.)
Then you just use a bit of PCB cleaner to wash both off. But you need the acid to remove any corrosion. |
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OLDGAMER
Amiga Enthusiast
Joined: 18 Apr 2009
Age: 37
Posts: 532
Location: Woop Woop Western Australia
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| Posted: Fri Dec 21, 2012 2:03 pm Post subject: |
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| edd_jedi wrote: | | djos wrote: | Im really not sure why folks use lemon juice, it's acidic too! (ever heard of citric acid?)
Get medical or electronics grade Isopropyl Alcohol and use that with cotton tips or/and a toothbrush to remove the battery acid. |
The battery doesn't have acid in it - it is alkaline. Hence why you use lemon juice, which is acidic and neutralises the alkaline on the motherboard (you will see it fizz.)
Then you just use a bit of PCB cleaner to wash both off. But you need the acid to remove any corrosion. |
Really  the use of lemon juice really works mite give it a go i got a 512k memory exp that had poped battery on it loads of corrosion around it.
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A500 1 Mb K1.3
A500 512k K1.2
A600 1mb K2.0
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