Battery for Telemechanique TSX P47 13

Dear all,
I am looking for a replacement battery for my old TSX P47 13 CPU processor unit, as the battery is soldered on to the main board unfortunately there is no voltage or description on the battery, please see the image attached.
It would be very helpful if any of you could reply to this thread.
Many thanks.
 

Attachments

Hello,

Could you post a picture of the battery on the board?
Are there any codes on the battery like CR3032?
Is it some kind of button cell?
The wiki has an overview of them with size given:
https://en.wikipedia.org/wiki/Button_cell
More battery sizes are give on this wiki page:
https://en.wikipedia.org/wiki/List_of_battery_sizes

Bertus
Hi Bertus
Thank you for your reply. Unfortunately it's only says MEXICO On the side and it's white in colour. I am attaching an Image that is very similar to mine, please have a look.
Regards
Sanju
 

Attachments

Hello,

On the side it says "varta 2/100 rst".
It could well be a rechargeble battery of 2 cells with a capacity of 100 mAh.
The following page shows a battery of 2 cells with a capacity of 80 mAh:
https://uk.farnell.com/varta/55608602059/battery-button-ni-mh-80mah-2-4/dp/854657
There are also slightly bigger cells like this with a capacity of 150 mAh:
https://uk.farnell.com/varta/55615702012/battery-ni-mh-150mah-2-4v/dp/4343712

Both might work well.

Bertus
Hi Bertus
Do you think this will work as well
https://www.allbatteries.co.uk/plc-battery/telemecanique/tsx-47-40-s3.html
And also this is very similar looking says 2.4 volt
https://www.allbatteries.co.uk/nicd-battery-2x-1-3aa-nx-2s1p-st4-2-4v-150mah-ft-mgn0424.html
Also you can see on the cover of the TSX P47 13 says 3.2V
Please see the image attached.
Thanks
Sanju
 

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Hello,

The V3.2 may be the revision number of the CPU.
The first battery you show is a 3 cell battery of 3.6 Volts.
The second battery you show is a 2 cell battery of 2.4 Volts.

You could try to measure the voltage on the battery with a digital multi meter.

Bertus
 
Hello,

The V3.2 may be the revision number of the CPU.
The first battery you show is a 3 cell battery of 3.6 Volts.
The second battery you show is a 2 cell battery of 2.4 Volts.

You could try to measure the voltage on the battery with a digital multi meter.

Bertus
But the battery inside the unit is completely flat! there is no way finding out the volts..
 
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