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
-
www.sunstonepower.comSunstone Power Industry Co.,ltd
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)