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Lithium batteries cannot be protected effectively by monitoring voltage due to their ability to maintain a
higher voltage for much longer than AGM or flooded/sealed batteries.
“State of Charge” (SOC%) percentage is the most accurate and effective method of disconnecting loads from
the battery - this requires a battery monitor which uses a “shunt” to measure the current going into
(Charging) and coming out of (Discharging) the battery.
Example;
200 Amp Battery
Fully Charged
State of Charge = 100%
50 Amps used
State of Charge = 75%
100 Amps used
State of Charge = 50%
It is recommended that Lithium batteries not be discharged below 20% State of Charge or the battery life
may be shortened.
As an added layer of protection, the Enerdrive B-TEC Lithium Battery also has a built-in low voltage
disconnect circuit. If this occurs, please refer to Section 6 - Restarting Your Battery.
If your battery has shut down due to low voltage you must charge your battery within 14 days to prevent
permanent damage occuring to the cells.
Section 5 - Protecting Your Battery
