"Paul Remde" wrote in message
news:vh3tk.315622$yE1.151194@attbi_s21...
Hi,

Yes, it is possible to change the backup battery without breaking the
seal. Just keep the unit powered with 12V power while replacing the backup
battery.

The customer that started this thread had the backup battery get too low
and die before it was replaced. The unit then had a security failure and
needs re-sealing.

Paul Remde

"Fred Blair" wrote in message
...
Can't you change the internal battery before it gets real low without
breaking the seal?

wrote in message
...
On Aug 25, 10:54 pm, Sam Discusflyer
wrote:
Is there a way to input a security code in a Cambridge GPS_NAV and seal
it
without spending hundreds of dollars?

Inquiring minds want to know.
Steve Michalik

Exact cost for 1 day turnaround by Gary at NK the week before last was
$130 including memory battery , calibration chart,and next day return
delivery.
My experience is that this is excellent service for a very fair price.
Certainly not the "hundreds of dollars" you seem to anticipate.
UH


The old Cambridge DOS program for the PC reads the voltage of the backup
battery. The Cambridge Nav head also shows the backup voltage upon power-up.
It pay to obsesrve this from time to time.

Hartley Falbaum
USA