Catalogue cấu tạo chi tiết sử dụng ác quy EV8D 250a AT 1

EV8D-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
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EV8D-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)

180.8 (82)

12

528±2
500±2

229±2
250±2

8D

Approx.

Dimensions in Inches (mm)

(optional)

POS

NEG

282±2
280±2
17.9

19.5

M3/8"

17

Type No.

Standard
Volts

40

Industry

SAE

Stud

www.vision-batt.com
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EV8D-250A-AT
Electrical Specifications

Ampere Hour Capacity

Minutes of Discharge

100HR

@25A

10HR

5HR

R/C

Cranking Amps

@25A 32°F/ 0°C 0°F/ -18°C

@75A

* - Performance averages after 15 cycles
278

240

222

162

570

614

1875

1500

Constant current discharge ratings-amperes at 20℃(68℉)
End point
volt/Cell

30min

45min

1h

3h

5h

10h

100h

1.60V

291

208

164

69.1

45.0

24.7

2.87

1.65V

284

204

161

68.6

44.8

24.5

2.84

1.70V

276

199

158

68.1

44.6

24.3

2.82

1.75V

267

192

155

67.3

44.4

24.0

2.78

1.80V

256

187

151

66.2

44.2

23.6

2.74

Constant power discharge ratings-watts per cell at 20℃(68℉)
End point
volt/Cell

15min

30min

45min

1h

2h

3h

5h

-----------

501

376

301

175

126

83.3

491

369

298

173

126

82.9

480

363

295

170

125

82.5

468

354

292

166

123

82.2

453

347

287

162

121

81.8

1.60V
1.65V
1.70V
1.75V
1.80V

Internal resistance

Fully charged at 20℃: 2.5 mOhms

Self discharge
Operating temperature range

<3% of capacity per month at 20℃
Discharge

Charge

Storage

-20～60℃

-10～60℃

-20～60℃

Short circuit current (20℃)

4800A

CHARGE METHODS: Constant voltage charging at 20℃(68℉)

Standby use
Cyclic use

Max. Charge current
0.3C10 A
0.3C10A

Charge voltage
13.6--13.8V
14.4--14.7V

Temperature compensation
-20mV/ ℃
-30mV/℃

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EV8D-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

13.0

80% D.O.D. 50%D.O.D.

12.0

20

11.0

CHARGING CURRENT

0
600

0

2

4

6

8

10

12

14

16

18

1200

20

110

13

100

12.5
12

11

50
50

60

70

80

90

4200

70
60

40

3600

80

11.5

30

3000

90

Capacity(%)

Battery voltage(V)

13.5

20

2400

Self-discharge characteristic

Relationship of OCV and state of charge (20OC)

10

1800

Number of cycles(cycles)

Charging time (hours)

0

20%D.O.D.

40

100

40

Relative state of charge (%)

40 oC

0

2

Relationship between

charging voltage and temperature

30 oC

4

6

20 oC

8

10

12
14
16
18
20
Storage time: months

(V/12V)

(V/8V)

(V/6V)

(V/4V)

(V/CELL)

Temperature effects on capacity
120

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

13.8

9.2

6.9

4.6

2.3

13.2

8.8

6.6

4.4

2.2

CY

STA

CL

ND B

EU
S

Capacity (%)

100

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

-20

60

MH25860

-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:
Copy Right Shenzhen Center Power Technology Co., Ltd (Edition 2011-9)

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