BMS Operations
20
Xantrex Lithium-ion Battery Owner's Guide
BMS Operations
Power Button
The Xantrex Lithium-ion Battery has a Power button on the unit that
turns the state of the battery to either ON or OFF.
c
Keep the battery ON after successfully mounting and
integrating it into a power system except when storing,
moving, or shipping it.
NOTE
: All below temperatures are based upon measured cell
temperatures, not upon ambient temperatures.
Cold Ambient Temperature
Operation
The Xantex Battery can operate down to 32 °F (0 °C) while
recharging the battery and –4 °F (–20 °C) while discharging.
There is no internal heating device inside the battery.
During cold temperature recharge, if the internal cell
temperature is below freezing the Xantex Battery BMS will
disconnect the cells from the terminals until the internal
temperature has risen above 37 °F (3 °C). This will prevent
damage to the cells.
During cold temperature discharge, if the internal cell
temperature is below –4 °F (–20 °C) then the BMS will
disconnect the cells from the terminals until the internal
temperature has risen above 5 °F (–15 °C). This will prevent
damage to the cells.
NOTE
: Discharging and recharging the battery will produce a
limited amount of heat inside the battery but will not be enough
to sustain a significant temperature rise in a very cold climate.
Consider an external heat source, if you will be operating the
battery in a cold climate environment.
Hot Ambient Temperature
Operation
The Xantex Battery can operate up to 131 °F (55 °C) while
recharging or discharging the battery.
During hot temperature operation, if the internal cell temperature
reaches above the high operational range, the BMS will
disconnect the cells from the terminals until the internal
temperature has dropped 9 °F or about 5 °C below the cutoff
point. This prevents damage to the cells and the over cycling of
the BMS.
NOTE
: Discharging and recharging the battery will produce a
limited amount of heat inside the battery. Be aware that in high
ambient temperature environments, repeated disconnections
are likely, especially if the battery is under high loads or
recharge current.