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Constant Power Discharge (Watts Per Cell) at 250C (770F)
5h 8h 20hF.V.(V/cell)
DischargeTime
1.60V
1.65V
1.70V
1.75V
1.80V
1.85V
5min 10min 15min 30min 1h 2h 3h 10h
1.24
1.23
1.22
1.20
1.19
1.18
2.37
2.35
2.31
2.26
2.21
2.14
2.84
2.82
2.78
2.75
2.71
2.56
4.28
4.16
4.06
3.97
3.88
3.63
6.45
6.29
6.06
5.91
5.82
5.44
8.31
8.01
7.94
7.76
7.51
6.93
14.2
14.1
13.9
13.5
13.0
11.6
25.2
24.0
22.9
22.2
21.5
18.5
40.8
38.7
36.7
34.9
32.3
27.1
53.5
50.4
47.1
44.3
40.9
32.4
76.8
71.3
65.6
61.2
55.5
41.8
Constant Current Discharge (Amperes Per Battery) at 250C (770F)
5h 8h 20hF.V.(V/cell)
DischargeTime
1.60V
1.65V
1.70V
1.75V
1.80V
1.85V
5min 10min 15min 30min 1h 2h 3h 10h
46.3
42.0
38.1
34.6
30.7
22.9
31.5
29.0
26.9
24.6
22.4
17.5
23.3
21.8
20.5
19.2
17.6
14.5
13.8
13.1
12.4
11.9
11.5
9.72
7.54
7.46
7.29
7.07
6.76
6.03
4.38
4.20
4.14
4.04
3.90
3.57
3.38
3.28
3.15
3.06
3.00
2.79
2.22
2.15
2.09
2.04
1.99
1.85
1.45
1.44
1.42
1.40
1.37
1.30
1.21
1.19
1.17
1.15
1.12
1.08
0.629
0.625
0.617
0.606
0.600
0.594
Applications
Uninterruptible Power Supply (UPS)Electric wheelchairs, scooters, bikesElectronic apparatus and equipmentAlarm and security systemsEmergency first responder equipmentEmergency lightingMedical devicesElectric cartsTelecom equipmentSwitchgearSolar power systems
MH47929
Specifications
Nominal VoltageNominal Capacity (20HR)Dimension
Approximate WeightBattery TypeTerminal TypeRated Capacity
Max. Discharge CurrentInternal ResistanceOperating Temp. Range
Nominal Operating Temp. RangeContainer MaterialCapacity affected by Temperature
Self Discharge
12V12AHLengthWidthHeightTotal Height (with Terminal)3.6 kg (7.94 lbs)Valve Regulated Lead-Acid Battery, AGM DesignT212.1AH11.5AH10.2AH10.1AH7.54AH180A30mΩDischarge: Charge: Storage: 25±30C (77±50F)ABS (Option: 94-HB & 94-V0 flame retardant case)400C (1040F)250C (770F)00C (320F)SigmasTek SP series batteries may be stored for up to6 months at 250C (770F) and then a freshening charge is recommended. For higher temperatures the time interval will be shorter.
151mm (5.95 inches)98mm (3.86 inches)94mm (3.70 inches)
100mm (3.94 inches)
(20hr,1.75V/cell,250C/770F)(10hr,1.75V/cell,250C/770F)(5hr,1.75V/cell,250C/770F)(3hr,1.60V/cell,250C/770F)(1hr,1.60V/cell,250C/770F)
-200C (-40F)~500C (1220F) -200C (-40F)~500C (1220F) -200C (-40F)~400C (1040F)
103% 100% 86%
SP12-12(12V12AH/T2)
Contact InformationT: (888) 988-8290
SigmasTek7651 W 100th PlaceBridgeview, IL 60455, USA
Temperature Effects on Long Term Float Life
0.5
1
2
3
4
56
8
10
20 30 40 5068 86 104 122
OCOF
Battery temperature
Life
exp
ecta
ncy
(yea
r)
Charging voltage:2.25V/cell
Temperature Effects in Relation to Battery Capacity
0
20
40
60
80
100
120
-20 -10 0 10 20 30 40 50
Temperature (0C)
Cap
acity
(%)
0.05CA0.1CA0.2CA
1.0CA
2.0CA
3.0CA
Float Charging Characteristics
6.0
6.5
7.0
7.5
5.5
(XCA)
0.10
0.15
0.20
0.25
0.05
0
%
30
50
40
60
70
80
90
100
120
110
(V) (V)
12.0
13.0
14.0
15.0
11.0
2.00
2.17
2.33
2.50
1.83
(V) 0.10CA-2.25V/cell temperature 250C
0
10
20
ChargeVolume
ChargingCurrent
ChargingVoltage
ChargingVoltage
0 4 8 12 16 20 24 28 32 36 40
Charging Time (hours)
After 100% Discharge
Charge Voltage(Constant 2.25v/cell)
Charging Current
After 50% Discharge
Charged Volume
Discharge Characteristics
Temperature: 250C (770F)4.33
4.00
3.66
3.33
3.00
2.678.0
9.0
10.0
11.0
12.0
13.0 6.5
6.0
5.5
5.0
4.5
4.0
2.16
2.00
1.84
1.68
1.52
1.36
2VBatteryЈVЈ
4VBatteryЈVЈ
6VBatteryЈVЈ
12VBatteryЈVЈ
1 2 4 6 8 10 20 40 60 2 4 6 8 10 20
Min H
Discharge Time
Term
inal
Vol
tage
(V) 0.05C0.093C
0.207C0.4C
0.628C1C
2C3C
Self Discharge Characteristics
0
20
40
60
80
100
2 4 6 8 10 12
Storage Time (Months)
Rem
aini
ng C
apac
ity (%
)
40oC 30oC
25oC
10oC
Cycle Service Life
0
20
40
60
80
100
120
200 400 600 800 1000 1200
Ambient Temperature:25oC (77oF)
DischargeDepth 30%
DischargeDepth 50%
DischargeDepth 100%
Number of Cycles (Times)
Cap
acity
(%)
DimensionsT2 TerminalUnit: mm (inches)
3.4 (0.134)7.95 (0.313)
6.35
(0.2
5)
0.8
(0.0
31) 151 ±1 (5.95 ± 0.04)
98 ±
1 (3
.86
±0.0
4)
100
±1 (3
.94
±0.0
4)
94 ±
1 (3
.70
±0.0
4)
SP12-12 (12V12AH/T2)Rechargeable Sealed Lead-Acid Battery
CHARGING INSTRUCTION
Floating use: 13.5~13.8VCycle use: 14.4~15.0V
Initial current: max 0.3CAwww.sigmastek.com
MH47929