[Motorola] Motorola Battery NTN 8294 Pins

[Eric Lemmon]

Sheldon,

The third contact pin is the "BATT_STATUS" signal.  I believe that this
provides the path for the CPU to communicate with an IMPRES battery, to keep
track of usage and number of power-on starts.  The battery stores this
information, which is then read by an IMPRES charger to warn when the
battery is nearing end of life.

Simply use a voltmeter on the battery contacts to determine which is which.
I seem to recall that the radio pins or the battery contacts (or both) may
be polarity marked.

73, Eric Lemmon WB6FLY
 

-----Original Message-----
From: motorola-bounces at mailman.qth.net
[mailto:motorola-bounces at mailman.qth.net] On Behalf Of Sheldon Daitch
Sent: Monday, January 07, 2013 7:10 AM
To: Discussion of equipment manufactured by Motorola
Subject: [Motorola] Motorola Battery NTN 8294 Pins

There are three interconnections between the NTN 8294 series
battery and the radio, such as an XTS-3000.

Looking at the rear of the radio, battery removed, base down,
what is the pin layout.  One is battery positive, one is battery 
negative.  Which is which?  What is the function of the third pin?

Thanks

73
Sheldon
WA4MZZ

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