[Boatanchors] OT but pertinent

[Brian Harris]

Dick,

There are batteries with integrated circuits inside which keep track of the 
charge going in and the charge going out the battery.  In effect they measure 
either coulombs or amp-hours.  It is reasonable to assume that a manufacturer 
could choose to use one of these IC's outside the battery rather than inside or, 
alternatively, the battery might have the chip inside but connections to it 
might only be made while it's installed in the phone.  Either way, the only way 
the charge monitoring chip would know if the battery had been charged would be 
if it were installed in the phone while charging.

 Brian Harris, WA5UEK
phone 214-763-5977
email cosmophone at yahoo.com
website www.myhamshack.com/wa5uek


When they call the roll in the Senate, the Senators do not know whether to 
answer "present" or "not guilty."  Theodore Roosevelt




________________________________
From: Dick KF4NS <kf4nsradio at verizon.net>
To: boatanchors at mailman.qth.net
Sent: Mon, February 7, 2011 6:29:13 PM
Subject: [Boatanchors] OT but pertinent

This is a new one on me. Have you ever heard of a device that will not 
allow NIMH batteries to be charged using an external charger  (my MAHA 
C777plus) ? What in the  world kind of gadgetry would know if I 
charged my batteries in the device or elsewhere?

Here is my inquiry to the MFR:
Dear Richard,
Thank you for your recent inquiry to our Consumer Sales and Service 
Center. Please keep the original email attached with our response in 
case further assistance is needed.

The phone model CL81209 (and all of our cordless products) is designed 
to have the battery charged while inside the battery compartment of 
the handset. Charging the batteries while outside the battery 
compartment will not work.

We apologize for any inconvenience this may have caused.

Thank you for contacting AT&T.

AT&T Telephones
Consumer Sales and Service Center
-----------------------------------------------------------------



--- Original Message ---
From: rjcjkeller at verizon.net
Received: 10/21/2010 5:39:51 PM Central Standard Time (GMT - 5:00 )
To: atttelephoneproducts at aatphones.com
Subject: Product Problem

A Product Problem has been requested.
First Name: Richard
Last Name: Keller
Zip: 33714-2726
Email: rjcjkeller at verizon.net
ConTel: 727-527-1331
Product Model: CL81209
Serial : HW002080123
Comments: My question is of a technical nature. I would like an 
explanation as to why the batteries cannot be charged externally and 
then inserted into the phone. I am an electronics technician with a 
lifetime of communications and telephone technical experience. I own a 
very sophisticated computerized analyzer/charger/conditioner/cycler 
which I use for batteries of all types. I charged the batteries to the 
full capacity and conditioned them, only to discover that the phone 
will not accept these properly charged batteries as fully charged and 
ready for use. The battery status indicator shows no charge and the 
will not recognize a full charge until I leave it on the supplied 
charger stand for at least 16 hours. Why is that?
Thanks in advance,
Richard

73, Dick KF4NS
St Petersburg, FL 33714 USA
Keep The Glow! 

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