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more electronics than electrics - battery and charging question

psychicwarrior
this pic --> https://drive.google.com/file/d/1gunP4gFyIucj0ITstccf2D2szu3cw17O/view


is of parts of a radio that has a compartment for a rechargeable battery. 


From the pic and the pin voltages I measured (measurements not accurate I'm sure), is it possible to 'suggest' how the battery was wired/connected to the pins ?


It is a Genus Type-R DAB radio from yesteryear and the manufacturer no longer exists and getting hold of tech diagrams or info from other sources has proved fruitless.  The base plate states 7.2V battery pack.


Some companies have suggested they can put together a battery unit for me to fit, but they need to know how the leads need to be connected from the battery to the internal charging connector (4 pins)  and I cannot get from anywhere a manual, or a picture etc.


If it is possible to work out from the above picture etc, please let me know though I doubt without the manufacturer info it is likely possible (from what I've been told so far).  Additionally, I tried contacting one person who I found selling the radio, but they too had no battery to send a pic of.


Regards

Habs
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  • 0
    The A.C. adaptor does the rectification and smoothing as it provides a D.C. supply to the radio via its power socket. So with the radio disconnected from any supply the polarity to the pins can be confirmed using an Ohms range on a multimeter. One probe on the power socket and the other on a pin to test for continuity. Positive centre is shown on the radio power socket. Don't connect up the power backwards.


    Z.
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  • 0
    The A.C. adaptor does the rectification and smoothing as it provides a D.C. supply to the radio via its power socket. So with the radio disconnected from any supply the polarity to the pins can be confirmed using an Ohms range on a multimeter. One probe on the power socket and the other on a pin to test for continuity. Positive centre is shown on the radio power socket. Don't connect up the power backwards.


    Z.
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