My new A500 with 512Kb extra RAM

[Tiago]

I does not open if i not remove the solder in that pin... i think it does not have any think that could be broken in that area.
I will try tho cut it gently

[Tiago]

I open it today,
it looks like it has a bit of leak ...... help please !!! What should i do?
i found a real bug inside.... did a nice macro of it:

images of A501 with leak(?) and the real bug i found (it is in the last photos)
http://lobodias.com/html/a501_ram_expansion.html

[Harrison]

As the battery is leaking, you need to remove it as the acid can eat into the pcb. If you don't have a soldering iron just use some wire cutters to remove it. The memory will still work fine, just without the rtc. If there is any acid on the pcb you need to clean this with some cotton buds and alcohol or vinager. You can replace the battery with a coin battery and diode if interested.

[Tiago]

Ok,
some cotton buds and alcohol or vinager..... witch is better?
the coin battery, what is the specs for it? can you tell me where i can buy them? and the diode?
how to assemble them?
I guess the battery is connected to the pcb in 2 points... so should be a + and a - the coin is the same has a + and -, but what about the diode? must i place it where? before the +? the - ?