Date   : Thu, 08 Apr 2010 22:58:50 +0200
From   : robert@... (Rob)
Subject: Testing homemade Master battery pack

On 08/04/2010, Tom Seddon <tom@...> wrote:
> Thanks to JGH's recent giveaway I'm now the proud owner of a Master 128.
>
> It needed a replacement battery pack, so following some instructions I
> found
> I've made myself a new one. I don't really know what I'm doing though, I
> just somehow remembered how to solder things together -- does anybody have
> any hints on what I should do to test it?

Just switch the machine off for a period of time ...!

>
> As far as keeping the CMOS contents around, it appears to work; I'm just
> worried about the recharging issue. I was just going to leave the thing on
> overnight and check tomorrow that the batteries haven't exploded, or
> warmed up any... would this be enough of a test?

As long as you used the resistor and diode from the original battery
pack, or new ones, and they are in line with the cables, then you
should be fine.


One of the problems I found with one machine I had was that the socket
on the end of the existing cable had itself corroded, so it wasn't
making good contact when I re-used it.  Should you have problems,
check that (and the pins on the main board) too.


Rob