SWL Series
VALVE REGULATED LEAD-ACID BATTERIESSWLSWL VALVE REGULATED LEAD-ACID BATTERIES (VRLA)The SWL range is an enhanced NPL design resulting in an improved energy
to density ratio, giving up to 40% extra discharge capacity. All other attributes
and operational characteristics are the same, thereby maintaining the benefitof a common mechanical and electrical design for users of both products.
FEATURES••••••

Yuasa VRLA batteries can be used in any orientation excluding continuous use inverted.
Standard case material is flame retardant to (UL94) HBØ.
FR option case material is flame retardant to UL94:VØ (oxygen index 30).
SWL batteries are manufactured in factories that comply with ISO9001:2000.
FR option SWL’s comply with BS6290 Part 4 (1997).
SWL batteries comply with IEC 60896-21+22.

Layouts
SWL750 (FR)SWL780V (FR)SWL1100 (FR)SWL1800 (FR)SWL1850 (FR)SWL1850-6 (FR)This battery typemust never be
installed
permanentlysuspended bytheir handles

This battery typemust never be
installed
permanently
suspended bytheir handles

SWL2250 (FR)SWLLayouts continued
SWL2300E (FR)SWL2500E (FR)SWL2500-6 (FR)This battery typemust never be
installed
permanently
suspended bytheir handles

This battery typemust never be
installed
permanently
suspended bytheir handles

SWL3300 (FR)SWL2500T (FR)SWL3800 (FR)This battery typemust never be
installed
permanently
suspended bytheir handles

This battery typemust never be
installed
permanently
suspended bytheir handles

LSWL4250 (FR)This battery typemust never be
installed
permanently
suspended bytheir handles

Terminals (mm)TerminalLXYLB

17mm

M510C20mm

M616D20mm

M816X
YX
Y

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General Specifications
Specifications
Nominal Voltage
10-min rate Constant Power 9.6V at 20°C
10-min rate Constant Power 1.6V/Cell at 20°C
10-hr rate Capacity to 10.8V at 20°C

SWL750 (FR)
12V
750W
125W
22.9AhSWL780V (FR)
12V
780W
130W
27.1AhSWL1100 (FR)
12V
1100W
183W
39.6AhSWL1800 (FR)
12V
1800W
300W
55Ah

SWL1850 (FR) SWL1850-6 (FR) SWL2250 (FR)
12V
6V
12V
1850W
1152W
2250W
308W
384W
375W
66Ah
132Ah
76Ah

Dimensions / mm
LengthWidth
Height(height over terminals)
Mass (typical) Kg

166 (± 0.5)
175 (± 0.5)125 (± 0.5)
N/A
9.0

166 (± 1)
125 (± 1)
175 (± 2)
N/A
10.1

197 (± 0.5)165 (± 0.5)
170 (± 0.5)
N/A
14.0

216 (± 0.7)
168 (± 0.5)223 (± 0.7)
N/A
23.0

350 (± 0.7)
166 (± 0.5)
174 (± 0.5)
N/A
23.0

M5
2.5Nm

M5
2.5Nm

M5
2.5Nm

M6
4.8Nm

M6
4.8Nm

M6
4.8Nm

M86Nm

-20 to +60-15 to +50-20 to +60-20 to +60-15 to +50-20 to +60-20 to +60-15 to +50-20 to +60-20 to +50-15 to +50-20 to +60-20 to +50-15 to +50-20 to +60-20 to +50-15 to +50-20 to +60-20 to +50-15 to +50-20 to +60

3%

3%

3%

3%

3%

3%

3%

Terminal Type
Female threaded terminal
TorqueOperating Temperature Range
Storage (in fully charged condition) °C
Charge °C
Discharge °C
Storage
Capacity loss per month at 20°C (approx)
Case Material
Standard Option
Flame retardant option (FR)350 (± 0.7) 380 (± 0.7)
166 (± 0.5) 166 (± 0.5)
174 (± 0.5) 174 (± 0.5)
N/A
N/A
23.0
27.5

ABS (UL94:HB) ABS (UL94:HB) ABS (UL94:HB) ABS (UL94:HB) ABS (UL94:HB) ABS (UL94:HB) ABS (UL94:HB)
ABS (UL94:VO) ABS (UL94:VO) ABS (UL94:VO) ABS (UL94:VO) ABS (UL94:VO) ABS (UL94:VO) ABS (UL94:VO)

Charge Voltage

Cyclic Charge voltage temperature correction factor(for variations from the standard 20°C)

13.65 (± 1%) V
2.275 (± 1%)
V/cell-3mV/cell/°C
14.5 (± 3%) V
2.42 (± 3%)
V/cell-4mV/cell°C

13.65 (± 1%) V 13.65 (± 1%) V 13.65 (± 1%) V 13.65 (± 1%) V
2.275 (± 1%)2.275 (± 1%)2.275 (± 1%)2.275 (± 1%)
V/cellV/cellV/cellV/cell-3-3-3-3mV/cell/°C
mV/cell/°C
mV/cell/°C
mV/cell/°C
14.5 (± 3%) V 14.5 (± 3%) V 14.5 (± 3%) V 14.5 (± 3%) V
2.42 (± 3%)2.42 (± 3%)2.42 (± 3%)2.42 (± 3%)
V/cellV/cellV/cellV/cell-4-4-4-4mV/cell°C
mV/cell°CmV/cell°CmV/cell°C

6.825 (± 1%) V 13.65 (± 1%) V2.275 (± 1%) 2.275 (± 1%)
V/cellV/cell-3-3
mV/cell/°C
mV/cell/°C
7.25 (± 3%) V 14.5 (± 3%) V
2.42 (± 3%)2.42 (± 3%)
V/cellV/cell-4-4mV/cell°C
mV/cell°C

Charge Current
Float charge current limit
Cyclic (or Boost) charge current limit

No Limit
11.45ANo Limit
6.78A

No Limit
9.90A

No Limit
13.75ANo Limit
16.50ANo Limit
33.00ANo Limit
19.00A

Maximum Discharge Current
1 second
1 minute

500A
150A

500A
150A

500A
200A

800A
500A

800A
500A

500A
260A

800A
500A

Short-circuit Current & Internal Resistance(according to EN IEC 60896-21)
Internal resistance
Short-circuit current

20.47mΩ
714A

N/AmΩ
N/A A

14.4mΩ
1005A

10.09mΩ
1437A

9.35mΩ
1529A

2.96mΩ
2408A

10.49mΩ
1442A

Impedance
Measured at 1 kHz

9.5mΩ

8.5mΩ

7.5mΩ

4mΩ

5mΩ

2.5mΩ

3.6mΩ

Design LifeEUROBAT Classification: High Performance Years
Yuasa design life (at 20°C) Years

10 to 12
up to 1010 to 12
up to 1010 to 12
up to 1010 to 12
up to 1010 to 12
up to 1010 to 12
up to 1010 to 12
up to 10

Float charge voltage at 20°C		
Float Charge voltage temperature correction factor(for variations from the standard 20°C)
Cyclic (or Boost) charge at 20°C

SWL

General Specifications continued
Specifications
Nominal Voltage
10-min rate Constant Power 9.6V at 20°C
10-min rate Constant Power 1.6V/Cell at 20°C
10-hr rate Capacity to 10.8V at 20°C

SWL2300E (FR) SWL2500-6 (FR) SWL2500E (FR) SWL2500T (FR) SWL3300 (FR)
12V
6V
12V
12V
12V
2300W
2600W
2500W
2500W
3300W
383W
867W
417W
416.67W
550W
78Ah
180Ah
90Ah
90Ah
105Ah

SWL3800 (FR) SWL4250 (FR)
12V
12V
3800W
4250W
633W
708W
124Ah
140Ah

Dimensions / mm
LengthWidth
Height(height over terminals)
Mass (typical) Kg

261 (± 0.7)
168 (± 0.5)225 (± 0.7)
N/A
27.0

297 (± 1)
168 (± 1)
231.5 (± 2)
N/A
32.5

305 (± 0.7)
168 (± 0.5)225 (± 0.7)
N/A
32.0

305 (± 3)
173 (± 3)
220 (± 3)
223 (± 3)
31.0

350 (± 0.7)
168 (± 0.5)225 (± 0.7)
N/A
38.0

350 (± 1)
173 (± 1)
272 (± 2)
N/A
48.0

341 (± 3)
173 (± 3)
281 (± 3)
N/A
49.0

M6mm
4.8Nm

M8mm
6Nm

M6mm
4.8Nm

M6mm
4.8Nm

M8mm
6Nm

M8mm
6Nm

M8mm
6Nm

-20 to +50-15 to +50-20 to +60-20 to +50-15 to +50-20 to +60-20 to +50-15 to +50-20 to +60-15 to +40-15 to +50-15 to +50-20 to +50-15 to +50-20 to +60-20 to +50-15 to +50-20 to +60-20 to +50-15 to +50-20 to +60

3%

3%

3%

3%

3%

3%

3%

Terminal Type
Female threaded terminal
TorqueOperating Temperature Range
Storage (in fully charged condition) °C
Charge °C
Discharge °C
Storage
Capacity loss per month at 20°C (approx)
Case Material
Standard Option
Flame retardant option (FR)ABS (UL94:HB) ABS (UL94:HB) ABS (UL94:HB) ABS (UL94:HB) ABS (UL94:HB) ABS (UL94:HB) ABS (UL94:HB)
ABS (UL94:VO) ABS (UL94:VO) ABS (UL94:VO) ABS (UL94:VO) ABS (UL94:VO) ABS (UL94:VO) ABS (UL94:VO)

Charge Voltage

Cyclic Charge voltage temperature correction factor(for variations from the standard 20°C)

13.65 (± 1%) V
2.275 (± 1%)
V/cell-3
mV/cell/°C
14.5 (± 3%) V
2.42 (± 3%)
V/cell-4
mV/cell°C

6.825 (± 1%) V 13.65 (± 1%) V 13.65 (± 1%) V 13.65 (± 1%) V
2.275 (± 1%)2.275 (± 1%)2.275 (± 1%)2.275 (± 1%)
V/cellV/cellV/cellV/cell-3-3-3-3
mV/cell/°C
mV/cell/°C
mV/cell/°CmV/cell/°C
7.25 (± 3%) V 14.5 (± 3%) V 14.5 (± 3%) V 14.5 (± 3%) V
2.42 (± 3%)2.42 (± 3%)2.42 (± 3%)2.42 (± 3%)
V/cellV/cellV/cellV/cell-4-4-4-4mV/cell°C
mV/cell°CmV/cell°CmV/cell°C

13.65 (± 1%) V 13.65 (± 1%) V
2.275 (± 1%) 2.275 (± 1%)
V/cellV/cell-3-3
mV/cell/°C
mV/cell/°C
14.5 (± 3%) V 14.5 (± 3%) V
2.42 (± 3%)2.42 (± 3%)
V/cellV/cell-4-4
mV/cell°CmV/cell°C

Charge Current
Float charge current limit
Cyclic (or Boost) charge current limit

No Limit A
19.50ANo Limit A
45A

No Limit A
22.50ANo Limit A
22.5A

No Limit A
26.25ANo Limit A
31.00ANo Limit A
35.00A

Maximum Discharge Current
1 second
1 minute

800A
400A

1500A
800A

1000A
500A

598A
276A

1100A
550A

1200A
600A

840A
420A

Short-circuit Current & Internal Resistance(according to EN IEC 60896-21)
Internal resistance
Short-circuit current

7.71mΩ
1857A

N/AmΩ
N/A A

6.5mΩ
2258A

5.64mΩ
2547A

5.64mΩ
2547A

4.8mΩ
3000A

N/A mΩN/A A

Impedance
Measured at 1 kHz

5.5mΩ

3mΩ

5mΩ

6mΩ

4mΩ

4mΩ

2.7mΩ

Design LifeEUROBAT Classification: High Performance Years
Yuasa design life (at 20°C) Years

10 to 12up to 10

10 to 12
up to 1010 to 12up to 10

10 to 12up to 10

10 to 12up to 10

10 to 12up to 10

10 to 12up to 10

Float charge voltage at 20°C		
Float Charge voltage temperature correction factor(for variations from the standard 20°C)
Cyclic (or Boost) charge at 20°C

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CHARGING CHARACTERISTICS

CHARGING CHARACTERISTICS

12014.0100806040
200.0812.00.06
11.00.04
0.020

DISCHARGE CHARACTERISTIC CURVES

13.00.100510152025303540

TEMPERATURE/LIFE CHARACTERISTIC
201014.0

FLOATING VOLTAGE: 2.275 V/cellDESIGNED LIFE (YEARS)TERMINAL VOLTAGE (V)

13.0

12.0

11.0

0.2C
0.08C 0.05C

10.05C3C

1C 0.5C 0.3C

9.0

8.00.010

50.5

0.100

1.000

10.000100.000

DISCHARGE TIME (MIN)

1000.000

1000.000

2030405060

TEMPERATURE (°C)

SELF DISCHARGE CHARACTERISTICS

Charging Methods (At 20°C)

Standby use: Float charging voltage 2.275vpc

CAUTION- Avoid short circuit.
- Do not charge in a sealed container.
- Service life and operational characteristics will beaffected by temperature.
- AC Ripple reduces service life.

WARNING!

SWL (Standard) and (FR) battery types SWL1850;
SWL1850-6; SWL2500, must never be installed
permanently suspended by their handles; they are notdesigned for this purpose.

Yuasa Battery Sales (UK) Ltd
Unit 13, Hunts Rise, South Marston Park,
Swindon SN3 4TG
Tel: 01793 833555   Fax: 01793 833579
Email: enquiries@yuasaeurope.com
Registered number 1548820
Cat. No.

SWLSF April 2013
E&O.E.

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