NiCd battery replacement in vintage computers

[Chris Pye]

> On 7 Feb 2016, at 7:21 am, Mark J. Blair <nf6x at nf6x.net> wrote:
> 
> * Reconfigure the circuit to use a non-rechargeable lithium coin cell in a holder instead. I don't think I've seen one of those leak before.

This is what I normally do, preferably mounted away from the board. Generally you can get away with simply using a diode to prevent the circuit trying to charge the battery.

Chris