Electronic apparatus and equipment

Communication power supply

DC power supply

Telecommunication system

Alarm and security system

Backup power for testing and

measuring instruments

UPS

Emergency lighting

Fire alarm and security systems

Auto control system

Solar and wind system

MLG12-33 (12V33AH)

Maintenance-free operation Stable quality and high reliability

Compact design 12years design time (at 25℃)

Gelled Electrolyte Technology

Features

Application

Specifications

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Dimensions unitimm[inches]

Nominal

Voltage

12V

(6

cells)

Operating

Temp.Range Discharge:

-15－50℃

(5－122℉)

Nominal

Capacity

35AH

(20hr,

1.80V/cell,

25℃/77℉)

Charge

:

0－40℃

(32－104℉)

33AH

(10hr,

1.80V/cell,

25℃/78℉)

Storage

:

-15－40℃

(5－104℉)

28.1AH

(5hr,

1.75V/cell,

25℃/77℉) Nominal

Operating

Temp.Range

25

±

3℃

(

77

±

5℉)

19.8AH

(1hr,

1.60V/cell,

25℃/77℉)

Cycle

Use 14.4~14.8V

(25℃/77℉)

Temp.Coefficient

-30mV/℃

Dimension

Length

195

±

2mm

Initial

Charging

Current

Less

than

9.9A

Width

130

±

2mmStandby

Use

13.5~13.8V

(25℃/77℉)

Temp.Coefficient

-20mV/℃

Container Height 154 ± 2mm No limit on Initial Charging Current

Total Height(with Terminal) 160 ± 2mmCapacity affected by

Temperature

40℃ (104℉) 103%

Approx Weight Approx 11.0Kg 25℃ (77℉) 100%

Terminal T1 / F3 0℃ (32℉) 86%

Container Material ABS

Self Discharge

Sunstone MLG series batteries may be stored for up to 9 months

Max. Discharge Current 380A (5S) at 25℃ (77℉) and then a freshening charge is required.

Internal Resistance Approx 10mΩ For higher temperatures the time interval will be shorter.

Constant Current Discharge (Amperes at 25℃/77℉)

Constant Power Discharge (Watts per cell at 25℃/77℉)

Note: The above characteristics data are average values obtained within three charge/discharge cycles, not the minimum values.

F.V/Time 5min 10min 15min 30min 45min 1h 2h 3h 5h 10h 20h

1.80V/cell 82.6 59.6 47.5 29.6 22.8 19.56 11.43 8.58 5.90 3.37 1.80

1.75V/cell 91.5 65.2 51.8 30.8 23.7 20.19 11.81 8.75 6.01 3.46 1.85

1.70V/cell 99.3 70.0 55.7 31.9 24.4 20.76 12.08 8.99 6.11 3.53 1.89

1.65V/cell 106.5 75.5 59.2 33.7 25.4 21.11 12.44 9.22 6.23 3.59 1.92

1.60V/cell 112.2 79.3 62.3 35.2 26.4 22.31 12.77 9.40 6.35 3.63 1.93

F.V/Time 5min 10min 15min 30min 45min 1h 2h 3h 5h 10h 20h

1.80V/cell 154.4 105.2 90.2 55.7 43.3 38.10 22.00 16.65 11.67 6.92 3.56

1.75V/cell 165.5 113.0 95.1 58.1 44.8 38.91 22.62 17.01 11.78 6.97 3.59

1.70V/cell 176.6 118.6 99.7 59.9 46.6 39.50 23.13 17.33 11.98 7.02 3.65

1.65V/cell 184.5 124.9 104.2 62.8 48.0 40.95 23.62 17.72 12.17 7.06 3.70

1.60V/cell 192.1 129.2 107.8 65.1 49.2 42.08 24.09 17.98 12.29 7.09 3.74

T2 Terminal F5Terminal16

7.5

17

7

6.5

14M6

4

154+

2m

m-

160+

2m

m-

195+2mm-

130

+2

mm

-

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Discharge100%(0.05CAx 20h)50%(0.05CAx 10h)

ChargeCharge Voltage 2.275V/CCharge Current0.1CA

Temperature 25 CO

2

3

1

Charge Volume

Charge Voltage

Charge Current

ChargeTime(h)

Ch

arg

e V

olt

ag

e( V

)

9

10

11

12

13

14

15 7.5

7.0

6.5

6.0

5.5

5.0

4.5

5.0

4.7

4.3

4.0

3.7

3.3

3.0

120

100

80

60

40

20

0

0.24

0.20

0.16

0.12

0.08

0.04

0

Ch

arg

e V

olta

ge(%

)

Cha

r ge V

olta

ge

( CA

)

0 2 4 6 8 10 12 14 16 18 20 24 28

100%

DOC

80%

DOC

30%

DOC

200 400 600 800 1000 12000

120

100

80

60

40

20

0

Testing conditionDischarging: current 0.17C(FV 1.7V/cell);Charging: current 0.25C max, voltage 2.45V/cell;Charging volume:125% of discharged capacity.

Number of Cycles

-20 -10 0 10 20 30 40 50 60

Ca

pa

cit

y (

%)

120

100

80

60

40

20

Temperature( C)O

0.1CA

0.17CA

0.25CA

Te

rmi n

al V

olt

ag

e(V

)

8.0

9.0

10.0

11.0

12.0

13.0

1 2 4 6 8 10 20 40 60 2 3 5 8 10 20

Min HDischargeTime

12VBattery(V) Temperature:25 C(77 F)

O O

99A

66A 33A

19.8A13.2A

6.8A 3.3A 1.65A

Cap

ac

i ty

(%)

100

80

60

40

20

0

2 4 6 8 10 12 14 16 18 20 22 24

30 CO

40 CO

20 CO

10 CO

0 CO

Supplementary charge required(Carry out supplementary chargebefore use if 100% capacity isrequires).

Supplementary charge requiredbefore use.This supplementary charge will helpto recover the capacity and shouldbe made as early as possible.

Supplementary charge may oftenfail to recover the capacity.The battery should never be leftstanding till this state is reached.

Supplementary charge and storageguidelines

StorageTime(months)

15

12

9

6

3

010 20 30 40 50

BatteryTemperature( C)O

Storage characteristics Effect of temperature on long term float life

Charge characteristic Curve for standby use Cycle Life in Relation to Depth of Discharge

Temperature Effects in Relation to Battery CapacityDischarge characteristic Curve

1400 1600

AmbientTemperature:25 C(77 F)O O

MLG12-33 (12V33AH)