HKC SW1070 battery replacement reccomendation

Idioteque

Hi,

Saw a low battery fault message on the SW1010 panel and checked the log to see it was a PIR in the kitchen. Checked the voltage on it (appreciate it's not load voltage though) and it was 2.7 (Duracell 3V batteries). I bought some new 3V batteries from Wesco and they are ~3.3V. I've 3 PIR's and they all needed replacing.

However, I've checked some of my inertia sensors and their batteries (HKC branded 3V) are measuring 3.1V. So I'm wondering if I should just wait until a low battery warning and then swap out or what is the recommended time/voltage to swap them out at? Note: They were installed just over 8 years ago.

Thanks

altor

https://www.boards.ie/discussion/2058336162/hkc-sw1070-battery-replacement-reccomendation

The proper way as you have said is under a load, if you take a battery and put it on a meter it will just give you what voltage it see which is confusing for most people.

The PIRs would have more use as they see you moving by them.

Yes, if you have access to the logs and can identify the each sensor I would only replace as needed.

Idioteque

I've ordered a few resistors (they are very cheap) so I can test with load but will hold off replacing them anyway until I see the low battery warning.

altor

https://www.boards.ie/discussion/comment/121770312#Comment_121770312

Id do the same myself once you know which one has the issue