replacing 286 cmos battery \ VOGONS

replacing 286 cmos battery

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First post, by Hamby

Posted on 2018-07-12, 14:46

Hamby Offline

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Joined: 2018-01-20, 11:12

I'm so excited... I just bought an 80286 10mhz motherboard with 1mb of ram off of ebay.
It's not here yet, but I already know I'm going to need to replace its cmos battery.
It has the barrel type cmos battery, currently.
Can I replace it with a CR2032 button battery? Should I, or would some other type be better?

Thanks for any advice, in advance.

Reply 1 of 1, by mcobit

Posted on 2018-07-12, 15:20

mcobit Offline

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Joined: 2017-11-15, 18:45

Those Barrel cells are accumulators and have a slightly higher Voltage than a 3V Lithium cell. If you want to install a lithium cell you have to take care that it won't get charged through the board like the NiCd Cell is.
It can be as easy as removing a diode but if you are not sure you can also replace the old cell with 3 AA or AAA NiCd accumulators in series.

Edit: What I like to do is to order a new barrel battery and solder some wires to the board so I can wrap it in some tape or shrinkwrap and place it a good amount away from the motherboard somewhere in the case.

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