When a LIFEPO4 battery reaches a Low Voltage Disconnect state, the BMS prevents any further discharge & the voltage of the battery reads as 0v or close to that.
Will an Orion DC-DC Charger as part of its Lithium profile, provide a current (possibly less than maximum current) to the battery to raise the battery voltage above its Low Voltage Disconnect to its Low Voltage Reconnect voltage?
I did review the manuals and could not find any reference to this feature.
yes it will
Do you have reference from a manual for this OR is it based on your experience?
Niether, I just think it will. We have installed many Orions and they can be used as power supplies as well as chargers. When the output voltage appears the Battery will immediatley close the Mosfets and the battery will begin to charge.
There are two (well, several) FETs inside a BMS. The discharge FET and charge FET.
When low voltage disconnect is triggered, the discharge FET is disabled and you can’t discharge it further and also read 0V.
But the charge FET remains active and you can “push” energy towards the battery for charging. As soon as the correct voltage is detected, the discharge one will also activate and you’ll see a different than 0 voltage.
So any charger will be able to charge the battery as long as it will maintain a proper voltage and current.
Read here: Application of Power MOSFET in Battery Management Charge-Discharge System