Lithium-Ion Battery; Battery Power Button/Battery Discharge Indicator - Tennant T380AMR Service Manual

MAINTENANCE

LITHIUM-ION BATTERY

The lithium−ion battery is a maintenance−free
battery protected by a battery management
system (BMS). To achieve the maximum battery
life, carefully follow the instructions below:
– Lithium-Ion batteries must be charged prior to
initial use.
– Carefully follow the Important Safety
Instructions section in the manual when using
the Lithium−ion Battery Model.
– Only use the lithium−ion battery charger
supplied with machine.
– Charge battery pack in well−ventilated areas.
For best charging performance, charge
the battery pack in temperatures below
104°F/40°C and above 32°F/0°C. Battery
pack may shut down and not take a charge in
elevated or freezing temperatures.
– It is recommended to only recharge battery
pack when discharge indicator level reaches
the last bar. Do not store the machine for an
extended period if battery is discharged to the
last bar, the battery may further discharge to a
level that is unrecoverable.
– Allow charge cycle to completely charge
battery pack.
– Opportunity charging (i.e. partial charge cycle
of a half hour or more) is only recommended if
discharge level is below 80%.
– Do not operate machine in temperatures
above 131°F / 55°C or below −4°F / −20°C.
Machine may shutdown if exceed these
temperatures.
– Contact Tennant Service for lithium−ion battery
service and replacement.
32
BATTERY POWER BUTTON / BATTERY
DISCHARGE INDICATOR
Each lithuim-ion battery contains a power button
to turn off the battery power supply. The battery
discharge indicator (BDI) display the current state
of the battery.
To display the battery charge status or fault state
(while the batteries are active), press and hold
the power button of any battery for one second.
When the batteries are fully charged, all fi ve green
indicators are lit. As the battery discharges, the
indicator levels decreases. If the indicators fl ash
red the battery is getting very low. If the indicators
display solid red along with green, the battery has
a fault. Contact Tennant Service to fi x the fault.
LED Indicator Status Battery State of Charge
81-100%
61-80%
41-60%
21-40%
11-20%
1-10%
See CHECK LITHIUM
BATTERY STATUS/FAULT
CODES section of this
manual
To turn off the battery power (while the batteries
are active), press and hold the battery power
button of any battery for 20 seconds. The battery
discharge indicators will turn off. Turning off one
battery will shut down power to all connected
batteries. Batteries should be shut down before
any service is completed on the battery modules.
To turn on the battery power (when the batteries
are shutdown), press and hold the power button on
each battery for 5 seconds. The battery discharge
green indicators will illuminate when turned on.
T380AMR 9021011 (09-2022)