Yuasa NP2-12 User Manual
CYCLIC RECHARGE REGIME
SELF DISCHARGE CHARACTERISTICS
FLOAT SERVICE LIFE NP RANGE
NP DISCHARGE CHARACTERISTICS
CURVES AT 25ºC (77ºF)
.059
.185
± .004
.124
.098
.250
.020
.031
12
± 0,2
5,5
5,
5
11,
5
11
2
± 0,1
2
±
.295
± .0
1
(.59
)
.216
± .01
.59
± .01
.197
± .01
0.71
0.27
0.37
0.768
0.24
0.53
WIRE AWG #20 UL 1007
JST No. VHR-2N
(TERMINAL)
JST SVH-21T-P1.1
0.23
0.42
0.16
0.31
x
y
Terminal
x
y
J:
K:
K:
17mm
20mm
20mm
M5
M6
M6
L:
20mm
M8
0.236
0.185
0.25
0
0.079
0.472
0.020
.310
± .008
.1
6
.250
± .004
.020
.031
± .004
Faston tab: 187
A
Bolt fastened terminal
E
Bolt fastened terminal
F
Bolt fastened terminal
G
JST No. VHR-2N
I
Internal thread terminal
Faston tab: 187
B
Faston tab: 250
D
INCH = MM
.250
6.35
.185
4.70
.124
3.15
.098
2.50
.059
1.50
.031
0.80
.020
0.50
.004
0.10
INCH = MM
.472
12.00
.453
11.50
.433
11.00
.216
5.50
.079
2.00
INCH = MM
0.24
6
0.27
7
0.37
9.5
0.71
18
0.768 19.5
INCH = MM
0.472 12.00
0.250 6.35
0.236 6.00
0.185 4.70
0.079 2.00
0.020 0.50
INCH = MM
.59
15.0
.216
5.5
.295
7.5
.197
5.0
INCH = MM
.310
7.90
.250
6.35
.16
4.0
.031
0.8
.020
0.5
Terminals
FEATURES
• Superb recovery from deep discharge.
• Electrolyte suspension system.
• Gas Recombination.
• Multipurpose: Float or Cyclic use.
• Usable in any orientation (except continuous inverted).
• Superior energy density.
• Lead calcium grids for extended life.
• Manufactured world wide.
• Application specific designs.
• Electrolyte suspension system.
• Gas Recombination.
• Multipurpose: Float or Cyclic use.
• Usable in any orientation (except continuous inverted).
• Superior energy density.
• Lead calcium grids for extended life.
• Manufactured world wide.
• Application specific designs.
Technical Features
Sealed Construction
Yuasa’s unique construction and sealing technique
ensures no electrolyte leakage from case or terminals.
Yuasa’s unique construction and sealing technique
ensures no electrolyte leakage from case or terminals.
Electrolyte Suspension System
All NP batteries utilize Yuasa’s unique electrolyte
suspension system incorporating a microfine glass mat to
retain the maximum amount of electrolyte in the cells.
All NP batteries utilize Yuasa’s unique electrolyte
suspension system incorporating a microfine glass mat to
retain the maximum amount of electrolyte in the cells.
The electrolyte is retained in the separator material and
there is no free electrolyte to escape from the cells. No
gels or other contaminants are added.
there is no free electrolyte to escape from the cells. No
gels or other contaminants are added.
Control of Gas Generation
The design of Yuasa’s NP batteries incorporates the very
latest oxygen recombination technology to effectively
control the generation of gas during normal use.
The design of Yuasa’s NP batteries incorporates the very
latest oxygen recombination technology to effectively
control the generation of gas during normal use.
Low Maintenance Operation
Due to the perfectly sealed construction and the
recombination of gasses within the cell, the battery is
almost maintenance free.
Due to the perfectly sealed construction and the
recombination of gasses within the cell, the battery is
almost maintenance free.
Terminals
NP batteries are manufactured using a range of terminals
which vary in size and type. Please refer to details as
shown.
NP batteries are manufactured using a range of terminals
which vary in size and type. Please refer to details as
shown.
Operation in any Orientation
The combination of sealed construction and Yuasa’s
unique electrolyte suspension system allows operation
in any orientation, with no loss of performance or fear of
electrolyte leakage. (Excluding continuous use inverted)
The combination of sealed construction and Yuasa’s
unique electrolyte suspension system allows operation
in any orientation, with no loss of performance or fear of
electrolyte leakage. (Excluding continuous use inverted)
Valve Regulated Design
The batteries are equipped with a simple, safe low
pressure venting system which releases excess gas
and automatically reseals should there be a build up of
gas within the battery due to severe overcharge. Note.
On no account should the battery be charged in a
sealed container.
The batteries are equipped with a simple, safe low
pressure venting system which releases excess gas
and automatically reseals should there be a build up of
gas within the battery due to severe overcharge. Note.
On no account should the battery be charged in a
sealed container.
Lead Calcium Grids
The heavy duty lead calcium alloy grids provide an
extra margin of performance and life in both cyclic and
float applications and give unparalleled recovery from
deep discharge.
The heavy duty lead calcium alloy grids provide an
extra margin of performance and life in both cyclic and
float applications and give unparalleled recovery from
deep discharge.
RELIABILITY IS YOUR SECURITY
Yuasa batteries are the trusted choice around the world for standby power in
applications where system integrity is paramount. Yuasa’s NP series incorporates
high energy density, advanced plate technology and a sealed construction to provide
complete peace of mind.
applications where system integrity is paramount. Yuasa’s NP series incorporates
high energy density, advanced plate technology and a sealed construction to provide
complete peace of mind.
Long Cycle Service Life
Depending upon the average depth of discharge, over
a thousand discharge/charge cycles can be expected.
Depending upon the average depth of discharge, over
a thousand discharge/charge cycles can be expected.
Float Service Life
The expected service life is five years in float standby
applications.
The expected service life is five years in float standby
applications.
Separators
The use of the special separator material provides
a very efficient insulation between plates preventing
inter-plate short circuits and prohibiting the shedding
of active materials.
The use of the special separator material provides
a very efficient insulation between plates preventing
inter-plate short circuits and prohibiting the shedding
of active materials.
Long shelf Life
The extremely low self discharge rate allows the battery
to be stored for extended periods up to one year at
normal ambient temperatures with no permanent loss
of capacity.
The extremely low self discharge rate allows the battery
to be stored for extended periods up to one year at
normal ambient temperatures with no permanent loss
of capacity.
Operating Temperature Range
The batteries can be used over a broad temperature
range permitting considerable flexibility in system design
and location.
Charge
range permitting considerable flexibility in system design
and location.
Charge
– 15°C to 50°C
Discharge – 20°C to 60°C
Storage
Storage
– 20°C to 50°C (fully charged battery)
Applications
Yuasa NP batteries, having excellent deep discharge
recovery characteristics coupled with long life on float
standby, are ideal for numerous applications in both
cyclic and standby modes.
Yuasa NP batteries, having excellent deep discharge
recovery characteristics coupled with long life on float
standby, are ideal for numerous applications in both
cyclic and standby modes.
Charging For Float Standby Applications
Charged at 2.275 volts per cell continuous. The battery
will seek its own current level and float fully charged.
However, users should be aware that when charging
from fully discharged, the battery can draw an initial
charge current of approximately 2cA. Care should
therefore be taken to ensure that this initial charge
Charged at 2.275 volts per cell continuous. The battery
will seek its own current level and float fully charged.
However, users should be aware that when charging
from fully discharged, the battery can draw an initial
charge current of approximately 2cA. Care should
therefore be taken to ensure that this initial charge
current (if ungoverned) is within the output capability
of the equipment. Final charge current at 2.275 volts
per cell is typically between 0.0005cA to 0.004cA.
of the equipment. Final charge current at 2.275 volts
per cell is typically between 0.0005cA to 0.004cA.
Charging For Cyclic Applications
See cyclic recharge regime graph.
NPH
High performance batteries specially designed for
applications requiring high rate discharge, supplying
up to 50% more power (Watts) for short durations
when compared to conventional NP models.
See cyclic recharge regime graph.
NPH
High performance batteries specially designed for
applications requiring high rate discharge, supplying
up to 50% more power (Watts) for short durations
when compared to conventional NP models.
CAUTION
- Do not Short Circuit
- Do not charge in a sealed container
- Service life and operational characteristics
will be affected by temperature
will be affected by temperature
- AC Ripple reduces service life
NPH DISCHARGE CHARACTERISTIC CURVES
RELATIONSHIP BETWEEN CHARGING
VOLTAGE AND TEMPERATURE
TYPICAL DISCHARGE
CHARACTERISTICS NP RANGE
FLOAT CHARGE CHARACTERISTICS
Layouts
NP1-6
NP1.2-6 NP2.8-6 NP4-6
NP7-6
NP10-6
NP12-6 NP0.8-12 NP1.2-12 NP2-12 NP2.1-12 NP2.3-12 NP2.8-12 NP3.2-12
1
1.2
2.8
4
7
10
12
0.8
1.2
2
2.1
2.3
2.8
3.2
0.93
1.1
2.5
3.7
6.5
9.2
11.1 0.74
1.1
1.86
1.9
2.1
2.5
2.9
0.85
1
2.3
3.4
6
8.5
10
0.68
1
1.7
1.75
1.9
2.3
2.7
0.6
0.7
1.6
2.4
4.2
6
7.2
0.48
0.7
1.2
1.2
1.3
1.6
1.9
6
6
6
6
6
6
6
12
12
12
12
12
12
12
54
58
61
72
86.2 85
101
65
61
95
69
76
63
71
24
25
29
28
28.5 30
35
27
25
34
31
29
30
32
75
60
30
20
22.5 8
8
270
110
180
60
65
60
50
5
12
28
40
35
40/75 75
4
12
10
21
23
28
32
15
36
84
1.20 105
300
360
12
36
30
63
69
84
96
51
97
134 70
151
151
151
96
97
150
178
178
134
134
42.5
25
34
47
34
50
50
25
48
20
34
34
67
67
54.5
54.5 64
105.5 97.5 97.5
97.5 61.5
54.5
89
64
64
64
64
0.25
0.31 0.57 0.87 1.32 1.93
2.05 0.35
0.58
0.7
0.82
0.95
1.12
1.2
A
A
A
A
A
A/D
D
I
A
B
A
A
A
A
5
1
1
5
1
1
1
6
3
7
1
1
3
3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
20hr to 1.75vpc 30ºC
10hr to 1.75vpc 20ºC
5hr to 1.70vpc 20ºC
1hr to 1.60vpc 20ºC
Voltage
Energy Density
(Wh.L.20hr)
Specific Energy
(Wh.kg.20hr)
Int. Resistance (m.Ohms)
Maximum discharge (A)
Short Circuit current (A)
Dimensions (mm)
Dimensions (mm)
Length
Width
Height overall
Weight (Kg)
Terminal
Layout
Terminal Torque Nm
General Specifications
Nominal Capacity (Ah)
NP4-12 NP7-12 NP12-12 NP17-12
I
NP18-12 NP24-12
I
NP38-12
I
NP65-12
I
NPH2–12FR NPH3.2–12 NPH5–12 NPH12–12 NPW45-12
4
7
12
17
17.2 24
38
65
-
-
-
-
29wpc
15min
15min
3.7
6.4
11.1 15.7
16
22.3
35.3
60.5
2
3.2
5
12
40wpc
10min
10min
3.4
5.9
10
14.4
14.5 20.4
32.3
55.3
1.82
2.91
4.5
10.8
63wpc
5min
5min
2.4
4.2
7.2
10.2
10.3 14.4
22.8
39
1.5
2.4
3.8
9
82wpc
3min
3min
12
12
12
12
12
12
12
12
12
12
12
12
12
75
91
104
89
94
79
83
77
82.7
69.2
92.9
95
89.7
27
32
36
33
38
32
32
34
28.5
27.3
29.9
32
30.7
40
25
16
15
11
9.5
7.5
5
66
35
24
16
-
40/75 40/75 75
170
112
240
300
500
14
22.4
35
84
42
120
210
360
500
500
500
500
800
40
64
100
240
105
90
151
151
181
180
166
197
350
68
134
90
151
151
70
65
98
76
76
175
165
166
51
67
70
98
65
106
97.5 97.5 167
167
125
170
174
88
64
106
97.5
97.5
1.75
2.65 4.05 6.1
6.2
9
14.2
23
0.84
1.4
2
4.2
2.7
A/D
A/D
D
J
E
J
J
K
A
A
D
D
D
1
4
4
2
2
2
2
2
2
3
1
4
4
-
-
-
2.45
-
2.45
2.45
4.76
-
-
-
-
-
20hr to 1.75vpc 30ºC
10hr to 1.75vpc 20ºC
5hr to 1.70vpc 20ºC
1hr to 1.60vpc 20ºC
Voltage
Energy Density
(Wh.L.20hr)
Specific Energy
(Wh.kg.20hr)
Int. Resistance (m.Ohms)
Maximum discharge (A)
Short Circuit current (A)
Dimensions (mm)
Dimensions (mm)
Length
Width
Height overall
Weight (Kg)
Terminal
Layout
Terminal Torque Nm
Nominal Capacity (Ah)
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