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.
The VRM alarms rules only apply to alarms sent to your phone. The Ruuvi battery alarms are on the GX device, which are nothing to do with VRM and would occur even if you were not connected to VRM.
