Use and Care Manual

LEOCH Battery Corporation
Repair
batteries which
with laggard
single cell
1. Equalization charge of the
battery group: charge the battery at
upper limit voltage and last more
than 10H, 3 times of discharge
cycle is necessary when case is
serious.
The difference of float
charge voltage between
single cell in a group of
battery should meet the
below standard:
2V series 90mv,
6V series 240mv ,
12V series 480mv
Single cell should be replaced if it fails
in repair.
2. On-line repair of single cell:
connect the cell the activation
meter or charger with the laggard
battery and charge the single cell.
Activation
charge and
discharge
Charge and discharge the battery
by one cycle, then charge the
battery by the lower limit of the
equalization voltage
About 30% of the rated
capacity is released.
Produced this text on the batteries
which float charge more than 6moths
but without discharge.
7.2.3 Inspection item per year
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～
Apart from the maintenance per quarter, additional articles added as below:
Items Contents Standards Maintenance
Checking
discharge test
Cut off AC power supply,
discharge battery with load,
and discharging 30% ~ 40%
rated capacity.
Battery voltage should
be over 1.90V/cell after
discharging.
If battery voltage is lower than standard
value, please equalization charge the battery
group after discharging and then float
charging it for 1~2 month, please contact us
if still have any departure.
Capacity test
Adopt the on-system
capacity test instrument or
fake load discharge battery
and discharge 60~80%of
More than 80% of the
capacity is reserved.
Take down the parameters during the
discharging test, if any laggard battery is
found, please proceed to relevant
operation.
7.2.4 Basic requirements and cautions on maintenance Requirements:
1) Principle “find out the hidden trouble and insure the safety” Should be complied when make test
on the battery.
2) Daily maintenance and performance analysis should be carried out strictly according the
processing plan.
3)
Battery parameter setting operation should be strictly complied with the maintenance rules and
related requirement.