NPC Series
VALVE REGULATED LEAD-ACID BATTERIES
CYCLIC APPLICATION
NPC
YUASA NPC SERIES
The low maintenance and valve regulated constructions combine
with heavy-duty plates and unique separator systems to make NPC
service twice as long as conventional counterparts.
Operating temperature range
FEATURES
Charge:
– 15 ~ 50°C
(5 ~ 122°F)
1. Double cycle life
Discharge:
– 15 ~ 50°C
(5 ~ 122°F)
NPC operates 500 charge/discharge cycles or twice as
Storage:
– 20 ~ 50°C
(– 4 ~ 122°F)
many cycles as conventional cycle use batteries at
Recommended charging method
75%D.O.D. (depth of discharge).
CYCLE SERVICE LIFE IN RELATION TO
DEPTH OF DISCHARGE AT 75% DOD
PERCENTAGE OF CAPACITY AVAILABLE
Max. 0.25CA
Voltage:
2.4 ~ 2.5VPC
Applications
TESTING CONDITIONS
(AH%)
Current:
Capacity test
0.17CA (FV 10.2V)
Life test
0.25CA, 3 hours
CHARGING: 14.6V, 9 HOURS
MAX. CHARGING CURRENT: 0.25CA
AMBIENT TEMPERATURE:
25°C (77F)
• Wheelchairs
• Golf trolley
120
• Lawn mowers
100
• Lights
Other
80
• Toy cars
NPC
• Sprayers
60
0
• Photovoltaics
200
400
600
800
NUMBER OF CYCLES
• Robots
• Communications
• Electric tools
2. Valve-regulated and maintenance-free
• Pumps
Battery electrolyte retained solidly in the separator and the
• Measuring instruments
innovative gas recombinant system allows minimum gas
• AGV (Automatic guided vehicle)
emittance freeing the user from maintenance.
• Magnetic lifts
3. Durability for deep discharge use
Yuasa’s state-of-the-art plate barrier prevention and the
unique separator systems help endure deep discharge
use thus considerably prolonging battery’s service life.
4. Minimal self-discharge
Cyclic use batteries tend to be left discharged after usage
causing plate corrosion leading to shortened life. Self
discharge rate of NPC is as small as only 0.1% a day at
20°C and thus extends the storage period allowed.
NPC
Specifications
NPC Model
Volts
Rated Capacity
(20 hr rate) (Ah)
NPC17 - 12
NPC24 - 12I
NPC30 - 12
NPC38 - 12I
NPC65 - 12I
12
12
12
12
12
17
24
30
38
65
Approx. Dimensions
Overall height
Width
Length
incl. terminals
181mm
76mm
167mm
175mm
166mm
125mm
195mm
129mm
179mm
197mm
165mm
170mm
350mm
166mm
174mm
Weight
Layout
6.2kg
8.8kg
11.25kg
14kg
23kg
2
2
Terminals
1
2
2
E
J
F
J
K
Terminals
Bolt fastened terminal
F
Terminals
J, K & L
INCH = MM
.59
15.0
.216
5.5
.295
7.5
.197
5.0
Bolt fastened terminal
E
INCH = MM
.472 12.00
.453 11.50
.433 11.00
.216 5.50
.079 2.00
Layouts
1
2
CAUTION
- Avoid short circuit.
- Do not charge in a sealed container.
- Service life and operational characteristics will be
affected by temperature.
- AC Ripple reduces service life.
WARNING!
The battery type NPC65-12I must never be installed
permanently suspended by their handles; they are
not designed for this purpose.
www.yuasa-battery.co.uk
Performance
PERCENTAGE OF CAPACITY AVAILABLE
Capacity test
0.17CA (FV 10.2V)
Life test
0.25CA, 3 hours
CHARGING: 14.6V, 9 HOURS
MAX. CHARGING CURRENT: 0.25CA
AMBIENT TEMPERATURE:
25°C (77F)
(AH%)
Terminal
voltage
TESTING CONDITIONS
Charge
volume
CONSTANT CURRENT, CONSTANT
VOLTAGE CHARGING CHARACTERISTICS
Charging
current
CYCLE SERVICE LIFE IN RELATION
TO DEPTH OF DISCHARGE
(XCA)
(%)
(V)
0.25
125
20.00
0.20
100
16.00
CHARGING VOLTAGE 2.4 - 2.5VPC
INITIAL CHARGING CURRENT: 0.25CA
TEMPERATURE : 25°C (77°F)
Charged volume
(vs. discharge volume)
Terminal voltage
120
80
0.15
100
12.00
60
80
0.10
60
100%
DOD
40
75%
DOD
50%
DOD
8.00
30%
DOD
40
0.05
20
0
20
4.00
Charging current
200
400
800
600
1200
1000
1400
1600
0
0
5
0
10
15
20
NUMBER OF CYCLES
CHARGING TIME (HOURS)
DISCHARGE CURRENT VS. DURATION TIME
200
DISCHARGE CHARACTERISTICS AT
VARIOUS CURRENTS (25°C (77°F))
(V)
FOR 12V
BATTERY
BATTERY TEMP. 25°C (77°F)
100
80
13.0
0.05 ~ 0.4C
60
40
12.0
30
20
38
Ah
NPC24 - 12
24
Ah
NPC17 - 12
DISCHARGE CURRENT
10
8
TERMINAL VOLTAGE (V)
A
17
Ah
6
0.05C
NPC38 - 12
4
3
2
0.2C
11.0
0.4C
0.6C
10.0
9.0
2C
3C
1C
5C
1000
800
600
mA
8.0
400
30
6
8 10
20
30 40
60
3
2
4
6
8 10
20
2
4
6 8 10
H
Min.
SELF DISCHARGE CHARACTERISTICS
0°C(32°F)
10°C(50°F)
20°C(68°F)
30°C(86°F)
25
0
0
3
6
9
12
15
18
STORAGE TIME (MONTHS)
Yuasa Battery Sales (UK) Ltd
Unit 22 Rassau Industrial Estate
Ebbw Vale, Gwent, NP23 5SD
Tel: 08708 500312 Fax: 08708 500317
E-mail: enquiries@yuasa-sales.co.uk
Registered number 1548820
Cat. No.
2
NPCSF April 06
E&O.E.
www.yuasa-battery.co.uk
Distributed by
4
H
CYCLIC RECHARGE REGIME
75
40°C(104°F)
40 60
DURATION TIME
(%) 100
50
20
Min.
DURATION TIME
REMAINING CAPACITY
0.1C
6 8 10
20