Removing the old barrel battery from my......

[Kurt]

I have an A4000 that has both a Coin battery and a header for the big PC AT type lithium battery.
came factory original that way.

Remove old batteries they leak and cause all kinds of hate and discountent.

Just cut the leads.
The battery is just for the clock. nothing more


Kurt


 

[QuikSanz]

Don't forget to clean all that xxxx from your MB. use a little bicarb of soda, make a paste w/water, use a q-tip, this will neutralise the acid. clean up well and use a pencil erasure to get a clean solder point.

Chris

[KennyR]

There's no acid in modern batteries, except maybe the big chunky ones. Putting bicarb on a motherboard is not a good idea.

[KapitanKlystron]

If you want to clean your motherboard, contact cleaner is the way to go.  Unless you can find straight trichloroethane which is tough these days.  In a pinch 100 percent rubbing alcohol is also a good solvent. Avoid cleaners with a lubricant such as tuner cleaners.  Be careful with all cleaners on PCB's as most conformal coatings are attacked  somewhat by solvents.

[BouncingAyatollah]

I know RS sell coin-cell holders, you could put one of these in, I was looking at doing this on an Apollo 040 then I got a Blizzard 060. If you put in another battery straight soldered on you'll just have to do the same later.

[KennyR]

IPA (isopropyl alcohol) is also good solvent to use, and is in fact what the professionals use. It's also great for cleaning keyboards. ;-)

[z36ra]

Bicarb acts as a buffer. if the pH is low the bicarb will bring it up. If the pH is high it will bring it down.

Still I would rather use a contact cleaner or good ole amphiprotic H2O.