OffGridInTheCity
Moderator
- Joined
- Dec 15, 2018
- Messages
- 2,687
For me, its not about drawing power from battery (I agree with comments on this) butits about isolating the battery 100% from the system while I work on the system. This isa personal choice. When I put the shunt-trip to OFF, I like to *know* that 'all electrical flow' from the batteryisdisconnected so I can work on the system under that assumption - and Batrium is not needed at that point. If the system goes off via a critical even - again I don't need Batrium to be liveas I have the recorded metrics leading up to the shut-off that I can consult.
Having said the above, I was recently reminded that there is a 2nd power source besides the battery- e.g. PV power. I was upgrading the wiring and disconnected the battery as the 1st step and was momentarily shocked to see Batrium (and other draws)continuing to run... till I (duh!!) remembered that PV power was active. That's why there are breakers on PV input as well that must be turned off to work on the central control box.
Having said the above, I was recently reminded that there is a 2nd power source besides the battery- e.g. PV power. I was upgrading the wiring and disconnected the battery as the 1st step and was momentarily shocked to see Batrium (and other draws)continuing to run... till I (duh!!) remembered that PV power was active. That's why there are breakers on PV input as well that must be turned off to work on the central control box.