Unable To Start; Unable To Charge - Pytes Pi LV1 User Manual

Protection
Failure
Failure
Notes: Blink descriptions: Blink 1"0.25s on/3.75s off"; Blink 2"0.5s on/0.5s off"; Blink 3"0.5s on/1.5s off";
Please refer to the troubleshooting methods mentioned below. Please read Table 7-1 and
Table 7-2 of this manual before troubleshooting to prevent false operations. For example, it
doesn't indicate the battery is faulty if the ALM alarm red light is blinking or constantly on.
When there is an "alarm" indication, it usually works well and needs no troubleshooting. When
there is "protection" indication, the battery will work normally automatically after "protection"
status is released.

7.1 Unable to start

Problem
Press the POWER
button to the "ON"
state but the LED
indicator doesn't
respond or all the
LEDs are off after
1second.

7.2 Unable to charge

Problem
The battery can't
be charged
properly while it's
not fully charged.
ON OFF
ON OFF
Troubleshooting Steps
1. Confirm that the DC Breaker on BCU
is in the "ON" state and all the POWER
buttons on BMUs remain in the "ON"
state;
2. Charge the battery correctly and
observe if the battery can be charged
properly.
Troubleshooting Steps
1. Confirm that the battery is turned on;
2. Check the power cable. Confirm that
the power cables are correctly connected
and the charging circuit is correct;
3. Check the BCU indicator LED to see if
the system is under "Protection" state. If
so, find the cause of the protection, and
fix the problem, then restart the battery;
4. Check if the charging voltage meets
the battery charging requirements. If not,
adjust the power supply voltage to the
proper range.
All off
Detected failure on cell or
All off temperature sensor or voltage,
MOS etc
24
Solution
1. If the battery enters
charging mode, the
battery can return to
normal after charging.
2. If not, please contact
the local reseller or
Pytes.
Solution
If the battery still does
not charge properly after
following the steps,
please contact the local
reseller or Pytes.