SC8D-250A-AT
Advanced AGM Dry Cell Technology
Vision EV Series Dry Cell Batteries provide superior performance, capacities and reliability. Using
state of art dry cell technology the EV series is designed for environmentally sensitive areas that
require enhanced cycle life capabilities in commercial, industrial, residential, and private
applications. The maintenance-free (VRLA) construction and advanced design features makes
the EV Series the definitive choice for a wide variety of markets; Solar and Renewable Energy
Storage; Electric Vehicle and Golf cart; Industrial equipment, Floor Machines, Fork lifts, Aerial lifts,
and Robotics; Marine, RV, and no-idle solutions; Mobility and Medical Equipment; Telecom,
Broadband and Cable TV; UPS systems.
Features & Benefits
Vision EV Series
•
Completely sealed valve regulated construction.
•
Flame arresting pressure regulated safety sealing valves for safety, operating pressure management and
protection against atmospheric contamination (excess oxygen being absorbed by negative plates).
•
Computer-aided 99.994% pure heavy-duty lead calcium grid designs.
•
Tank formed plates guarantees evenly formed and capacity matched plates.
•
Anchored plate groups to guard against vibration.
•
Double insulating Micro porous glass fiber separators.
•
Measured and Immobilized electrolyte.
•
Vacuum filling and weighing processes.
•
Advanced technology for efficient gas recombination of up to 99.9% and freedom from electrolyte maintenance.
•
Wide range of operating temperatures (-40°C to 60°C).
•
Low self discharge rates (Approx. 1%-3% monthly at 20 °C–25°C / 68°F–77°F).
•
High impact reinforced strength copolymer polypropylene cases and flat top designed covers that are
rugged and vibration resistant.
•
Thermally welded case to cover bonds that eliminate leakage.
•
Copper and stainless steel alloy terminals and hardware.
•
Multi-terminal options.
•
Terminal protectors.
•
Removable carry handles.
•
Industry leading size and performance options.
•
Classified as “NON-SPILLABLE BATTERY” Not restricted for Air (IATA/ICAO) Provision 67, Surface
(DOT-CFR-HMR49)or Water (Classified as non-hazardous per IMDG amendment 27) transportation.
•
Can be used in multiple orientations (upside down is not recommended).
•
Compatible with sensitive electronic equipment.
•
Quality Assurance processes with ISO (4400/992579), QS and TUV Certification EMC tested, CE, ETTS
Germany (G4M19906-9202-E-16). UL recognized and approved components (MH25860).
•
Tellcordia and Bellcore compliant.
ISO 14001
DIN ISO
9001/QS9000
MH25860
Complies with DOT provisions
listed in 49CRF173.159 (d).
Special provision A67
www.vision-batt.com
page 1 of 4
SC8D-250A-AT
Mechanical Characteristics
L
W
H
TH
Weight in
Terminals
in(mm)
in(mm)
in(mm)
in(mm)
Lbs (Kgs)
AT
20.8 (528)
11.1 (282)
9.0 (229)
9.8 (250)
157 (71)
12
528±2
500±2
229±2
250±2
8D
Approx.
(optional)
POS
NEG
282±2
280±2
17.9
19.5
M3/8"
17
Type No.
Dimensions in Inches (mm)
Standard
Volts
40
Industry
SAE
Stud
www.vision-batt.com
page 2 of 4
SC8D-250A-AT
Electrical Specifications
Ampere Hour Capacity
100HR
10HR
R/C
Minutes of Discharge
5HR
@25A 32°F/ 0°C 0°F/ -18°C
@75A
@25A
Cranking Amps
* - Performance averages after 15 cycles
244
210
199
548
120
510
1825
1400
Constant current discharge ratings-amperes at 20℃(68℉)
End Point
5min
10min
15min
30min
45min
1h
3h
5h
10h
100h
1.60V
580
440
356
218
163
133
61
41.3
21.8
2.53
1.65V
536
413
337
210
158
129
59.9
40.8
21.6
2.50
1.70V
490
387
316
202
153
125
58.8
40.3
21.3
2.47
1.75V
444
359
295
193
147
121
57.7
39.8
21.0
2.44
1.80V
399
332
275
184
141
117
56.6
39.3
20.8
2.41
Volts/Cell
Constant power discharge ratings-watts per cell at 20℃(68℉)
End Point
5min
10min
15min
30min
45min
1h
2h
3h
5h
1.60V
1035
814
668
410
308
246
139
101
67.0
1.65V
969
769
632
397
300
241
137
100
66.0
1.70V
903
724
596
384
292
236
135
99.0
65.0
1.75V
836
678
560
370
284
231
133
98.0
64.0
1.80V
769
632
524
356
275
225
131
96.0
64.0
Volts/Cell
Internal resistance
Fully charged at 20℃: 2.7 mOhms
Self discharge
<3% of capacity per month at 20℃
Operating temperature range
Discharge
Charge
Storage
-20~60℃
-10~60℃
-20~60℃
4500A
Short circuit current (20℃)
CHARGE METHODS: Constant voltage charging at 20℃(68℉)
Standby use
Cyclic use
Max. Charge current
0.3C10A
0.3C10A
Charge voltage
13.6--13.8V
14.4--14.7V
Temperature compensation
-20mV/℃
-30mV/℃
www.vision-batt.com
page 3 of 4
SC8D-250A-AT
Voltage
Current
Charged
Volume
Charge / Discharge Tables & Graphs
Cycle service life in relation to
depth of discharge
Charge characteristic curve
120
Constant voltage charge characteristic
(0.25CA,20 oC)
(%) (XCA) (V)
100
120
0.25
100
0.20
80
0.15
60
0.10
40
20
0.05
0
0
15.0
CHARGED VOLUME
14.0
CHARGE VOLTAGE
Capacity(%)
140
80
60
80% D.O.D. 50%D.O.D.
12.0
20
11.0
CHARGING CURRENT
0
400
0
2
4
6
8
10
12
14
16
18
800
20
110
13
100
12.5
12
11
50
50
60
70
80
90
100
40
Relative state of charge (%)
40 oC
0
2
Relationship between
charging voltage and temperature
(V/12V)
(V/8V)
(V/6V)
(V/4V)
(V/CELL)
15.6
10.4
7.8
5.2
2.6
80
15.0
10.0
7.5
5.0
2.5
14.4
9.6
7.2
4.8
2.4
9.2
6.9
4.6
2.3
8.8
6.6
4.4
2.2
4
6
8
20 oC
10
12
14
16
18
20
Storage time: months
CY
CL
ND B
EU
S
Capacity (%)
100
STA
13.2
30 oC
Temperature effects on capacity
120
13.8
2800
70
60
40
2400
80
11.5
30
2000
90
Capacity(%)
Battery voltage(V)
13.5
20
1600
Self-discharge characteristic
Relationship of OCV and state of charge (20OC)
10
1200
Number of cycles(cycles)
Charging time (hours)
0
20%D.O.D.
40
13.0
E
0 .1 C
0 .2 C
60
1 .0 C
40
2 .0 C
Y US
E
20
0
-10
0
10
20
30
40
Ambient temperature(oC)
50
THE INTERNATIONAL CERTIFICATION NETWORK
ISO9001:2000
MH25860
-20
60
-10
0
10
20
Temperature(oC)
30
40
G4M19906-9202-E-16
www.vision-batt.com
Shenzhen Center Power Tech. Co., Ltd.
Center Power Industrial Park, Tongfu Industrial District Dapeng Town, 518120 Shenzhen, China
Tel: (+86-755) 8431 8088 Fax: (+86-755) 8431 8038 E-mail:
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