Batteries
-
Finding your Victron Instant Readout key
Victron encrypts its Bluetooth broadcast per device, which is a good decision that leaves you with one thing to copy across. It takes about a minute once you know where to look.
-
The coin cell problem
A sensor that has run out of battery does not tell you it has run out of battery. Why coin cells fail in the cold, why lithium matters, and why last-seen is a reading in its own right.