M12-100 Lithium Battery User Manual
16
4. Battery maintenance
4.1 General description
Before cleaning and maintaining the lithium battery, be sure to disconnect all loads and
charging equipment from the lithium battery.
Before cleaning and maintenance of the lithium battery, please put a protective cover on the
terminal to prevent the risk of short circuit caused by contacting the terminal during cleaning
and maintenance.
Do not try to open or disassemble the lithium battery!
4.2 Security check
Check the connection point for loose or broken wires, cracks, deformation, leakage, or other
types of damage. If the lithium battery is found to be damaged, it must be replaced in time. It
is forbidden to charge or use damaged lithium batteries. Do not touch the liquid leaked from a
ruptured lithium battery.
In order to enable the BMS to calculate the SOC of the lithium battery more accurately and
eliminate the cumulative error of the SOC, it is recommended to complete a full discharge
(discharge to 0% SOC) and full charge (charge to 100% SOC) every 3 months.
4.3 Surface clean
If you need to clean the lithium battery, please wipe the outer surface of the lithium battery with a
soft, dry cloth or paper towel. Do not use liquids, solvents or abrasive tools to clean lithium
batteries.
Do not try to open or disassemble the lithium battery!
4.4 Not used for a long time
If you don’t use the battery for a long time, you need to turn the rocker switch on the MEH-B to
"O", or turn the Power switch on the lithium battery to "OFF" to turn off the lithium battery to
avoid damage caused by over-discharge of the battery.
When the battery is not in use for a long time, it needs to be charged to 80% capacity
regularly, and the charging cycle is required to be less than 3 months.
4.5 Use the battery in a low temperature environment
When the cell temperature is
≤2
℃
, the lithium battery will report a low temperature fault alarm,
and the user cannot directly charge the lithium battery. In the low temperature environment,
when the external charger is turned on (charging voltage 14~14.2V), the lithiumbattery will
automatically turn on the heating function. After the automatic heating of the lithium battery is
completed, the battery can be charged normally and the battery low temperature alarm will be
released. For M12 -100 it will take about 90 minutes to heat from -20°C to a temperature that
allows charging.
4.6 Over-discharged o battery
The battery will be shut down if it hits protection threshold value of over-discharged and without
being charged in 10 minutes. To wake up battery, you can turn the battery switch or rocker switch
of MEH-B OFF and then ON. Please charge the battery in 10 minutes if its waken up.
If he battery is failed to be waken up, please charge the battery directly with charge voltage 14.0V
or greater. The battery will wake itself up and start charging as long as it measures voltage of
14.0V or greater.
Summary of Contents for M12-100
Page 1: ......
