why i call Li fussy
Hi all, This doesn't cover all the concerns for me, but it does show at least some of them: https://youtu.be/_PgthByAYz4
Forum Discussion
That CANBAT blurb from wegosolar is confusing about the BMS disconnecting at low temp, and how the heater works . The actual manual says:
" LiFePO4 batteries can safely charge
between 32°F to 113°F (0°C to 45°C). Canbat Low Temperature series (LT)
can be recharged between -31°F to 113°F (-35°C to 45°C). The LT series has a built-in heating system which activates when the temperature reaches the
freezing point. It works by warming up the lithium cells to above freezing
and only then the BMS would allow in the charging current."
The manual says the battery can be discharged down as low as -20C, so what is the state of play between -35C and -20C? No 12v to the rig? But it says the heater comes on (or did it say that? maybe means it activates charging when it gets up to freezing from a lower temp) at 0C, so where did the heater get its power doing that? (You are not charging at the time-- unless you are! :( )
It is a muddle with this brand's "info". Need another brand to check how it works.
" LiFePO4 batteries can safely charge
between 32°F to 113°F (0°C to 45°C). Canbat Low Temperature series (LT)
can be recharged between -31°F to 113°F (-35°C to 45°C). The LT series has a built-in heating system which activates when the temperature reaches the
freezing point. It works by warming up the lithium cells to above freezing
and only then the BMS would allow in the charging current."
The manual says the battery can be discharged down as low as -20C, so what is the state of play between -35C and -20C? No 12v to the rig? But it says the heater comes on (or did it say that? maybe means it activates charging when it gets up to freezing from a lower temp) at 0C, so where did the heater get its power doing that? (You are not charging at the time-- unless you are! :( )
It is a muddle with this brand's "info". Need another brand to check how it works.
