These things are driving me crazy. I have about 10 temp sensors throughout my RV and 3-4 have low batteries… i know i get it.. they’ve been low for a year and yet still keep ticking along. They’re in a spot I can’t access (under solar panels) and once they die or I start rebuilding I’ll get them swapped out. Also they’re not that low if they’re still working a year later.
Is there any way to disable these warnings/alarms completely on my CerboGX? I LOVE the integration and super happy don’t get me wrong but would love it a bit more if there wasn’t a red bar on VRM 24/7 and yellow triangle on the screen.
What’s weird is another one is 2.54 or so and not low but I think those two keep going in and out from low and ok. Ones in the fridge and the other is on a generator radiator (the waterproof Ruuvi). It’s 30F today and getting down to like 10F tonight I think so worst for these batteries… but these will be right above freezing
Taking a look at the ble driver, the alarm limits are set as follow:
If temperature is between -40 ↔ -20 deg.C, the voltage limit is 2.0 volts.
If temperature is between -20 ↔ 0 deg.C, the voltage limit is 2.3 volts.
Above 0 deg.C, the voltage limit is 2.5V.
As soon as a voltage drops below these voltage limits, an alarm triggers.
So change the batteries accordingly…
I had a lot of warnings in the range of about ~2,5V at temperautres from 0°C…10°C. This is way too early… For me it was easy to change the battery, but it is still annoying.
