Thanks for identifying the location of the MOBISAT tracker. I had noticed the battery on my SV discharged over a period of a couple of weeks if not connected to the charger (I found out the hard way once when I had it connected, but forgot to switch it on...doh!). I've just taken out the unit, which is a Teltonika Telematics FMM001 (which is now obsolete, support ends AUG 2025, replacement: FMM003). The power consumption specs are:
At 12V < 6.5 mA (Ultra Deep Sleep)
At 12V < 8 mA (Deep Sleep)
At 12V < 13 mA (Online Sleep)
At 12V < 16.3 mA (GPS Sleep)
At 12V < 31 mA (nominal)
A previous poster noted that the unit consumes more current when not registered. It could be that until it is registered, it remains in the "nominal" state, drawing 31 mA. If so, a new, fully charged battery with an 8.6 Ah capacity would be drained in 8.6/0.031 = 277 hours, or about 11.5 days. An older, not fully charged battery would obviously be drained more quickly, so this explains a lot. I also have a Scorpion DataTool tracker fitted, so that also has a current drain, but at least it is Thatcham approved and lowers my insurance premium.
Needless to say, I've disconnected the MOBISAT tracker, not least because it only ever worked for a short period and then gave an endless "Registering..." message in the MyRide app.
Many thanks!