On Apr 17, 2020, at 9:27 PM, David & Laura <davidandlaura@...> wrote:

?

Off the top of my head, the following modules have batteries:

70004A Display

70100A Power Meter

70205A Display

70700A Digitizer (WARNING - disconnecting the battery causes program loss)

70900A/B LO

I think the optical spectrum analyzer modules have batteries too, but I've never looked inside one of those.

Lots of manuals are online here:?

Thanks,

David Slik

VE7FIM

On Fri, Apr 17, 2020 at 9:21 PM Dave Miller <ve7hr@...> wrote:

Now that is ugly :-(
A question.
I am guessing that is the battery that is in the 70000 modules.
Does some one have a quick reference to where they are located and which modules have them?
I am thinking I should change out mine.
I have a good collection of modules.
Thanks
Dave
VE7HR
> On Apr 17, 2020, at 9:17 PM, Dave McGuire <mcguire@...> wrote:
>
> ?On 4/18/20 12:10 AM, David & Laura wrote:
>> Went to pull a 70205A system display module off the shelf to install in
>> a 70001A, and found the following surprise:
>>
>> Evidently the module has (had) a TL-5104 3.6 Volt Lithium battery behind
>> that door, though I've never seen corrosion look like this before...
>
>? Wow.? THAT is what I call a mess!? I've never seen an Li cell go like
> that before either.? I wonder if someone put something else in there.
>
>? ? ? ? ? -Dave
>
> --
> Dave McGuire, AK4HZ
> New Kensington, PA
>
>
>