On 2/10/23 10:13, Brian K. White wrote:
Oh you sure don't want to solder to the cells.
I did not mean to suggest buying individual cells, just to identify
them for reference for searching for packs made with them.
Battery packs are often named after the cells.
The memory battery inside the 100 is called "3/V80H 2-pin" because
it's made of 3 V80H cells, etc.
The new batteries worked perfect.
https://photos.app.goo.gl/68qSfxdPD9WwdhzHA
The only thing is it is a tight fit between the rom socket and the edge
of the cryptonics board, and I think that tightness pushing sideways on
the edge of the board maybe caused some of the bus pins to not make good
connection and made the machine crash and no boot after reset. Fiddling
with the cell pack a little flipping it over different directions I
found an orientation that felt slightly better and now it's running
again. Or maybe that was just alcohol not fully dried yet trapped under
chips. I think maybe the trick is lay the battery in position first and
then the pcb.
The tight fit is the same as the original pack anyway.
The lead wires fish right in between the female bus sockets like the
original wires. I fished them in end-wise, not mashed from the top, and
they fit with no resistance, no mashing of the insulation at all.
If you look at the pics here, before soldering, I flush-cut 4 of the
pins that poke up right under the red & black wires, and then touched
them with flux and fresh solder so they made smooth domes so they don't
pierce the battery wires. I did that before installing the new battery.
The old battery wire was stuck by super glue, so it took a little care
to scrape up most of the insulation and super glue without scratching
any traces on the pcb.
If you want you can have one of the 2 extra packs I got.
--
bkw
