Correct string
with
l
ow
single
cell
1. Equalization charge of the
battery
string
: charge the battery at
upper limit voltage
for
10
hrs
, 3
discharge cycle
s
may be
necessary
when c
ondition
is serious.
The difference of float
charge voltage between
single cell in a
string
of
battery should meet the
below standard:
2Vseries 90mv
6vseries 240mv
12Vseries 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 6
mo
n
ths but without discharge.
7.2.3
Yearly
Inspection item
s
A
dditional to
Q
uarterly and
M
onthly
M
aintenance
items
:
Items
Contents
Standards
Maintenance
Checking
discharge test
Cut off AC power supply,
discharge battery with load,
and discharging 30%
to
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 an
issue
Capacity test
Utilize a
capacity test
instrument
with
load
bank
discharge battery and
discharge 60~80%
of the
rated capacity
More than 80% of the
capacity is reserved.
Verify that string has at least 80% capacity.
Capacity test should only be performed
once every 5 years or when less than 80%
capacity is suspected.
pg.15
7.2.2
Quarterly
Inspection items
continued
:
A
dditional to
M
onthly
M
aintenance
items
:
Содержание 12MQ100 - 620
Страница 9: ...5 7 2 12V Batteries Vertical 3 tier 2 row Rack 30 batteries shown pg 9 ...
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Страница 22: ...Notes For assistance Power Storage Solutions 888 813 5049 or www pwrstoragesolutions com pg 22 ...