Product Specifications

Lithium cutoff:
Switch 3 of the DIP switch block selects lithium cutoff. If
switch 3 is in the down position as shown the Sabertooth
will automatically detect the number of series lithium cells
at startup, and set a cutoff voltage of 3.0 volts per cell. The
number of detected cells is flashed out on the Status LED.
If the number of cells detected is too low, your battery is in
a severely discharged state and must be charged before
operation. Failure to do so may cause damage to the battery pack. When 3.0V per cell is
reached, the Sabertooth will shut down, preventing damage to the battery pack. This is necessary
because a lithium battery pack discharged below 3.0v per cell will lose capacity and batteries
discharged below 2.0v per cell may not ever recharge. Lithium cutoff mode may also be useful to
increase the number of battery cycles you can get when running from a lead acid battery in non-
critical applications. Because the system will continue to draw some power, even with the motor
shut down, it is important to unplug the battery from the Sabertooth promptly once the cutoff is
reached. If the Sabertooth is being run from any other power source, switch 3 should be in the up
position.
Lithium Cutoff enabled