Hi,
I just figured out, the MPPT disables the load, if you setup undertemp and this setting is kicking in.
Why??
Would be great to disable Batterie, to protect LiFePo from undertemp, but still keep the load alive, so Sun-Power can still be used.
Hi,
I just figured out, the MPPT disables the load, if you setup undertemp and this setting is kicking in.
Why??
Would be great to disable Batterie, to protect LiFePo from undertemp, but still keep the load alive, so Sun-Power can still be used.
You can’t have both unless you use other devices for control to the connection on the battery side. (These devices exist)It will run in a power supply mode if you do this assuming you don’t have capcitive or heavy start up loads that have surges.
The MPPT and it’s load output assumes a battery needs to be protected and it does so -that is its job.
So what is this „other“ device?
Does your battery bms not have low temp cut off?
I am going to say the devices used depends on budget.
You could always manually disconnect your battery with its isolator. If you want to automate it will require buying things.
My battery has a temp protected BMS, but if BMS disable discharge and MPPT is on, the SOC from my Shunt is incorrect.
Therefore I‘m also turn off MPPT below 0 degree.
It should be easy to implement into the FW, to have the possibility to activate load w/o battery.