PSB F-471

This Bulletin Number is PSB F-471
APC - 720, 376
Date: November-1995
Deadline: November-1996

Memo To:PSB Mailing List (Direct/Indirect)

From: Motorola Customer Resources

Subject: Low Battery Audio Indicator Caused from Dirty Battery Contacts

Kits Affected: All Visar Batteries

Introduction: Recently, Motorola engineering teams conducting an analysis on Visarª field returns uncovered a failure condition that can give the appearance of low battery capacity as the failure condition. The analysis found that, in some cases, the low battery audio indicator is caused by contamination found on the battery contacts. This buildup of contamination on the battery contacts can cause the radio's low battery audio indicator to "chirp chirp" when the battery charge is not yet exhausted. Portables experiencing low battery audio alert may exhibit battery contact contamination rather than having a battery with low battery capacity. If contaminates are suspected or noted, it is recommended that the battery contacts be cleaned as follows.

Corrective Action : Customers/Operators can clean and protect their Visar Batteries with a cleaning kit - NTN8361A. This cleaning kit is being made available through Visar Product Services as detailed below. The kit consists of a cleaning solution, a Nylon pad and a protecting ProGold wipe . IT IS VERY IMPORTANT THE CLEANING PAD BE NON -METALLIC i.e.. DO NOT SUBSTITUTE THE NYLON PAD WITH STEEL WOOL.

Future cleaning of the contacts should not be required unless the radio is used in a very dirty environment, however, if future cleaning is required re-application of the ProGold is recommended.

To receive cleaning kits, Visar Battery Cleaning Kit - NTN8361A, as described above - simply fill out the Fax Form on the back of this bulletin and fax it to the Customer Resource number on top of the form. Each kit is capable of cleaning five batteries, please specify the number of kits required for your site. If you have any questions or concerns, please contact our Customer Resource Representative at
1-800-663-0271. Kits can be requested through the attached Fax Form and will be shipped within two working days.

Material will be provided under warranty, no labor is implied.

Note: This bulletin supersedes PSB F-464

Fax to 305 - 723 - 4713

Company:______________________________

Address:_______________________________

______________________________________

______________________________________

Phone Number: _________________________

Name:_________________________________

Quantity of Kits Requested:_______________