Caution - If you have a back up machine

[Nightynite]

I have a back up AS 10 that just sits in the closet in case my main machine breaks. During my blower motor replacement I was going to replace the button battery on the PC board but never did.

Out of curiosity I emailed Advans cpap repair . Supplier #28 and ask him just how long does this button battery last and what does it do .  Below is his response.    This may be a concern for others.



The battery can last anywhere from 5-7 years.  It's function retain memory.  Once it is dead,  the control board will need to be replaced.   The battery is part of the control board and not replaceable.

Sincerely,
Advans CPAP

[Crimson Nape]

Not so, if you know how to solder. This battery is available from Mouser and DigiKey.
- Red

[Nightynite]

Red, I bought that battery just never attempted to install it. Have you or anyone else on here successfully installed one?

[Nightynite]

I know I can get the old one out and install the new one, I just don’t know what happens when there’s no battery in there.

[Crimson Nape]

It would reset back to factory defaults.
- Red

[Nightynite]

Well, then there’s probably no reason to change it then. Once it’s plugged in and manually set your pressure , it should work fine.

[Crimson Nape]

Yep! The battery backup only comes into play when there isn't an external power source.
- Red

[Nightynite]

Thanks Red

[Big Guy]

Good stuff to know. 

[Sleeprider]

I have a couple of Vauto machines that sit in the closet without power. This is probably something I will eventually deal with. Thanks for the heads-up. Why would they solder the battery rather than just install in clips?