How does red battery edit HT1550 XLS Freqs.

[RadioCrazy]

Out of cureiosity how does the red programming battery enable the HT1550 XLS to go into edit mode for the frequincies and make the radio Front panel programable? Is these a chip in the battery that the radio reads or is these a chip in the radio that knows you have a red program battery on it? Could you take the chip out of the red battery and place it in the HT1550 and not need the red battery any more and make the radio a permenet FPP and be able to put on any battery and still have FPP? Thanks in advance

[SD70MAC]

Originally Posted by RadioCrazy

Out of cureiosity how does the red programming battery enable the HT1550 XLS to go into edit mode for the frequincies and make the radio Front panel programable? Is these a chip in the battery that the radio reads or is these a chip in the radio that knows you have a red program battery on it? Could you take the chip out of the red battery and place it in the HT1550 and not need the red battery any more and make the radio a permenet FPP and be able to put on any battery and still have FPP? Thanks in advance

I have been wanting to open up one of these batteries for years to see ,but I cannot find an old one. Cutting up a $80 New battery is out of the question for me. The best way would be to edit the codeplug like a JT1000 ,but Moto never made a Government model of this radio. I can fix almost any error with the Waris radios but I cannot figure this out.

[bezking]

Batboard • View topic - How does red battery edit HT1550 XLS Freqs.

[RadioCrazy]

Originally Posted by bezking

Batboard • View topic - How does red battery edit HT1550 XLS Freqs.

Thanks for your reply, seems on every forum I belong to, I just can't find a definitive answer to this question, no one knows if there is a removable chip that can be put in the back of the HT1550 for a permenent edit mode or not?

[mancow]

Don't know why it wouldn't work to just take it out and solder in the radio the same battery contacts.

[RadioCrazy]

Originally Posted by mancow

Don't know why it wouldn't work to just take it out and solder in the radio the same battery contacts.

But must it have battery current going through it, or is a stand alone chip that can be in close proximity with the rear of the contacts.

[RadioCrazy]

For the electronic experts in the crowd, I took apart a red and black battery, the black was dead but the red had at least another year of service in it, but wanted to see your opinions.

[N2DLX]

Nice closeups to ID the chips and components.

Looks like the only difference I see after quickly looking over the photos is the chip is marked with a different number on the third line. It may or may not be another chip, could be as simple as the same chip programmed differently -- perhaps with a battery type and serial number that can be reported to the radio. On the red battery, perhaps there's a flag or a model type that is reported so it knows that it's FPP-able. Might also tell the radio the battery chemistry if the nominal voltage is going to change slightly.

Now the trick is to try and swap that chip to the black battery, make the connections for a quick test and see if the radio will unlock the FPP functions. If it works, it proves you can get FPP to work on other batteries but you can't put that chip inside the radio to make it FPP with any battery. The best you can do is modify black batteries to be FPP but you'd destroy it in the process. My guess is that Motorola did this intentionally and probably wanted to have the battery be "smart" to some degree, being able to report basic info to the radio.

Next question would be, does a battery eliminator have this same flex in it, and if so, you could probably make a battery eliminator FPP-able if you can get into it without destroying it.

[RadioCrazy]

Here are the flex#s for both black and red battery. The flex in both bats look the same to me.