Narada
Power
Source
Co.,
Ltd.
313K
series
12V
battery
operation
manual
V1.5
13
3.5.2
Equalization
charge
parameter
Equalization
voltage:
2.35V/cell
Charge
current:
≦
0.25C
10
A
■
Note
：
Normal
float
charge
is
not
need
equalization
charge.
Do
equalization
charge
as
one
of
following
conditions:
1)
Discharge
capacity
more
than
20%
rated
capacity.
2)
Storage
period
6
months
max.,
3
months
is
better.
3)
Float
charge
for
3
to
6
months
or
cell
is
voltage
drop
in
bank.
4)
Before
capacity
test.
3.5.3
Setting
charge
capacity
105%
‐
110%
of
discharge
capacity.
If
temperature
is
below
5
℃
,
Setting
charge
capacity
110%
‐
120%
of
discharge
capacity.
3.5.4
Lower
temperature
(below
5
℃
),
longer
charge
time.
It
is
easy
over
‐
charge
at
high
temperature.
Charge
at
recommended
temperature
is
better.
3.5.5
To
avoid
overcharge,
control
charge
time
or
setting
change
to
float
charge
mode
automatically.
3.5.6
Charge
Curve
Fig.2
‐
2
Recharge
characteristics
of
313K
12V
battery
with
current
of
0.1C
10
A
and
limit
voltage
of
2.35V/cell.
The
100%
DOD
battery
can
be
recharged
105%
of
capacity
after
charging
for
24
hours.
1.95
2.05
2.15
2.25
50% DOD
60
40
20
0
8
4
0
0.00
0.05
24
20
16
12
Charge Time
(h)
Charge Current
Cha
rge
C
apacity
(%)
120
100
80
Charge Voltage
0.10
2.35
Charge
Vo
ltage
Charge
Curre
nt
(CA)
(V)
100% DOD
Charge Capacity
