Re: RAM backup battery in HP 8112A
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Hi David, You do need the right sort! My 8112 didn't retain settings and hadn't for the couple of years I've owned it. I finally got round to doing something about it about 8 weeks back - opened it up, read the part number off the lithium battery I found inside and ordered a replacement. As I was about to fit it a closer look revealed what looked more like a trickle charge circuit and a quick measure confirmed it was really hoping for a 2.4V Nicad so that's what I fitted! The circuit configuration seemed to match that in the 8116 manual rather than anything I found for the 8112 all of which seemed to describe Li. It has worked fine since then BTW.
All the best Adrian
On Sunday, July 16, 2017 6:55 PM, "'David C. Partridge' david.partridge@... [hp_agilent_equipment]" wrote:
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I'm looking at an 8112A, which is fitted with a Ni-Cd battery on the
processor board, rather than a Panasonic BR-2/3AT2P 3V Lithium primary cell.
The unit has serial 2343G01456 and processor board number 08116-66523. I
think this is covered by backdating changes 29 and 41.
What it doesn't say is the type of battery - I assume just about any 3.6V
Ni-Cd that will fit?
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