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SWL Valve Regulated Lead-Acid Batteries (VRLA)
The SWLrange is an enhanced NPLdesign 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 benefit of 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.
Layout
SWLwww.yuasa-battery.co.uk
Data SheetSWL SERIES - SWL2500*
1) Nominal Voltage 12
2) Nominal Wattage/Cell10 min to 1.6V/Cell 4905 min to 1.6V/Cell 6503 min to 1.6V/Cell 750
3) Weight (Approx)/Kg 36
4) Energy Density (Wh/L) 95
5) Specific Energy 13RH01 )gk.hW(
6) Internal Resistance6mhom/)xorppA(
7) Maximum (1 min) discharge Current/A 500
8) Maximum Short Duration (1 sec) Discharge Current
008serepmA ni
9) Operating Temperatures/°C05 ot 51-egrahC06 ot 02-egrahcsiD
10) Percentage Charge Retention at 20°C
79htnom 119shtnom 358shtnom 6
11) Standard Terminal Lead postType with brass insert
C
67.4mN euqroT )21
13) Case Material ABS
Dimensions / mm
5031-/+ htgneL3711-/+ htdiW3222-/+ thgieH
General Specifications
Specifications SWL2500*
L
X
Y
Terminal X Y L
C 20mm M6 16
Terminals (mm)
*Models available in Flame Retardent case only.
Distributed byYuasa Battery Sales (UK) Ltd
Unit 22 Rassau Industrial EstateEbbw Vale, Gwent, NP23 5SD
Tel: 08708 500312 Fax: 08708 500317E-mail: enquiries@yuasa-sales.co.uk
Registered number 1548820
Cat. No. SWL1800 February 07
E&O.E.
www.yuasa-battery.co.uk
DDaattaa SShheeeettSWL SERIES - SSWWLL22550000**
CHARGING CHARACTERISTICS
0 5 10 15 20 25 30 35 40
120
100
80
60
40
20
0
0.1
0.08
0.06
0.04
0.02
0
14.0
13.0
12.0
11.0
DISCHARGE TIME (MIN)
TE
RM
INA
L V
OLT
AG
E (
V)
14.0
13.0
12.0
11.0
10.0
9.0
8.00.010 0.100 1.000 10.000 100.000 1000.000 1000.000
5C3C 0.5C 0.3C
0.2C
0.08C 0.05C
1C
DISCHARGE CHARACTERISTIC CURVES20
10
5
0.5
20 30 40 50 60
TEMPERATURE (¡C)
FLOATING VOLTAGE: 2.275 V/cell
DE
SIG
NE
D L
IFE
(Y
EA
RS
)
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 be
affected by temperature.- AC Ripple reduces service life.
WARNING!SWL (Standard) and (FR) battery types SWL1850;SWL1850-6; SWL2500, must never be installed per-manently suspended by their handles; they are notdesigned for this purpose.
CHARGING CHARACTERISTICS
TEMPERATURE/LIFE CHARACTERISTIC
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