SC
SC
SC
SC Battery
Battery
Battery
Battery and
and
and
and Charging
Charging
Charging
Charging System
System
System
System
- 9 -
Diagnosis
Diagnosis
Diagnosis
Diagnosis and
and
and
and Test
Test
Test
Test
1. Fault diagnosis of Battery
Fault
Fault
Fault
Fault Fault
Fault
Fault
Fault symptoms
symptoms
symptoms
symptoms Cause
Cause
Cause
Cause analysis
analysis
analysis
analysis Troubleshooting
Troubleshooting
Troubleshooting
Troubleshooting
Excessive
shedding of
active material
①
Excessive sediments at the battery
bottom
② Excessive low battery capacity
③
Perpetual red brown of cell wall and
operating bolt
④ Red brown electrolyte
⑤ The electrolyte is reddish and there
is pulpy shedding of pole plate
active materials, separators are in
softening state and negative pole
plate active materials are softening
expansion.
⑥
Massive shedding
①
Too high set valve of vehicle
circuit regulator
② Too large current in charging and
too long charging time
③ Too large discharge capacity and
too long discharge time
④
High temperature and long service
time due to long-term vehicle
running
⑤
Unqualified pole plate
manufacture
①
Clean the sediments with
washing method and charge
it for reuse
②
Replace with a new battery
Reverse
installation of
polarities
①
For one reversed cell, 8V
② For two reversed cells, 4V
③
For the whole reversed cells-12V
Manufacturing quality
①
Replace with a new battery
② Disassemble and reinstall
Reverse charging
of polarities
①
The voltage is negative
② The colors of positive and negative
terminal posts are reversed.
③ The colors of pole plates are
reversed.
①
Misconnection of positive and
negative polarities in charging
①
Discharge the capacity of
battery after its reverse
charging of polarities
completely
② Charge the battery with
small current and then with
normal current in the case of
response of every cell
③
For serious cases, replace
with a new battery
Battery
explosion
①
Terminal post sparking
② Broken positive circuit
③ Holes and cracks in battery case and
cover
①
Incorrect installation
② Aged and thin circuit
③ Faulted operation of generator
④ Interference of external sparks
⑤ Insufficient solder for terminal
post
⑥ Broken busbar
⑦
Dropped plate
⑧ Broken intermediate terminal post
⑨
Broken pole plate
①
Firmly install
② Replace the circuit
③ Eliminate generator fault
④ Keep the battery away from
heat source
⑤
Always keep vent
unblocked.
⑥
Replace with a new battery
Low capacity in
early stage
①
Underpowered start
② Low voltage value
③
Slow response
①
Unfirm connection or circuit fault
②
It exceeds the storage period.
③
Positive pole plate passivation
④ Negative pole plate oxidation
⑤
Slightly leaky separator
①
Inspect the circuit carefully
② Carry out boost charge
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