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(2) Read the battery's history records to check whether the first unit is in the
under-voltage protection state before the connection is interrupted or the first
unit is offline and the under-voltage protection state exists before it is offline -
the first unit will notify all devices to enter hibernation after the under-voltage
protection, or the first unit will notify all devices to enter hibernation forcibly
when it monitors the under-voltage protection state before other devices are
offline, at which time it is necessary to access the power supply to activate the
device and charge it.
7
Battery's heating film does not work at low temperature
Symptom: Low temperature access to the power supply, battery cannot be
charged. heating film is not turned on and the battery did not start heating
Inspection steps:
(1) Check whether the heating film dry contact enable signal of the master
battery is at off state (default is ON).
(2) Check whether the heat enable is active via CAN BUS/Bluetooth/RS485.
(3) Confirm the power output voltage and current are appropriate.
(4) Check whether the heating film has failed via CAN BUS/Bluetooth/RS485
8
BMS system error
Symptom: Read the error code is system error via CAN
BUS/Bluetooth/RS485
Inspection steps: Switch the battery on and off again, and if the fault code
is not eliminated. please Switch off the module and contact your local
distributor.
Excluding the points above, if the faulty still cannot be located, turn off
battery and contact your local distributor.
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