CR2032 battery details

[Justin]

Hi all,
is this ok to use on an A4K?

http://www.maplin.co.uk/lithium-battery-holders-32671?c=froogle&u=32671&t=module

also where is the + and - on the mobo?

i'd like to add a battery to my A4K

cheers, JuvUK

 

[Tomse]

Hey JuvK

the + on the A4000 Mobo, is the side that was attached to 2 pins

and the CR2032 is perfect for the job.

don't forget to add a diode so the battery won't be charged (it's not a chargable battery)

 

[Justin]

Hey JuvK

the + on the A4000 Mobo, is the side that was attached to 2 pins

and the CR2032 is perfect for the job.

don't forget to add a diode so the battery won't be charged (it's not a chargable battery)

Thanks Tomse

uuummm what diode and where does it go?

is there a guide on line somewhere to do this?

 

[jvdbossc]

look at my for sale thread the pics are self explaining more or less how to fit the diode.

https://www.amibay.com/showthread.php?t=14600

 

[Tomse]

you can see the diagram in pic 1 and I've created a simplified diagram in pic 3

I've chosen a 1n4148 diode since it's pretty common here but anyone will do as long as they can withstand +12v on the katode , I recommend that you get one that can withstand atleast +20v

the diode has a black ring in one of the ends, that one is the Katode, which is the side furthest away from the battery (in my drawing)

I hope this makes sense.. let me know if you have no idea what I'm talking about.. then I'll make some new drawings

 

[Justin]

thanks guys!

perfect! i'll give this a go later

thanks again, JuvUK

 

[TheCorfiot]

If you need some diodes Juvvy, I can chuck a couple in the post for you.


TC