chrisski
Solar Boondocker
- Joined
- Aug 14, 2020
- Messages
- 5,231
What do Your Set Your Low Temperature Cutoff to for Lithium Batteries? Any reasoning to would be nice. I’m thinking of having the SCCs shutoff charging at 35, and the BMS shutoff charging at 32.
I used to think this was an easy question with the battery spec sheet saying 32 F; however, the software on my BMS although adjustable came programmed higher, I think 40 F, so perhaps my temps are too low.
I also want to have two steps. The first cutofff would be from a higher temp that shuts off charging from the Victron SCC by a Victron Battery Montitor that is networked together, and the second step would kick in from the BMS at a lower temp. In theory, it the BMS kicked in at 32, then the SCCs should be sending no current to it anyway.
I used to think this was an easy question with the battery spec sheet saying 32 F; however, the software on my BMS although adjustable came programmed higher, I think 40 F, so perhaps my temps are too low.
I also want to have two steps. The first cutofff would be from a higher temp that shuts off charging from the Victron SCC by a Victron Battery Montitor that is networked together, and the second step would kick in from the BMS at a lower temp. In theory, it the BMS kicked in at 32, then the SCCs should be sending no current to it anyway.