FirstPower Technology Co., Ltd. FP1272 (12V7.

2Ah)
Specifications
Nominal Voltage 12 V
20HR(10.5V) 7.2Ah
Capacity
10HR(10.5V) 6.7Ah
(25℃)
1HR(9.60V) 4.68Ah
Length 151±1.5mm (5.94inch)
Width 65±1mm (2.56inch)
Dimension
Height 94±1mm (3.70inch)
Total Height 100±1mm (3.94inch)
Approx. Weight 2.26kg (4.97lbs)±5%
Terminal type T1/T2
Dimensions
Internal resistance
Approx. 28mΩ
(Fully charged, 25℃)
40℃ 102%
Capacity
affected by 25℃ 100%
temperature 0℃ 85%
(20HR)
-15℃ 65%
3 month Remaining Capacity: 91%
Self-discharge
6 month Remaining Capacity: 82%
(25℃)
12 month Remaining Capacity: 65%
Nominal operating
25℃±3℃(77℉±5℉)
temperature
Operating Discharge -15℃～50℃(5℉～122℉)
temperature Charge -10℃～50℃(14℉～122℉)
range Storage -20℃～50℃(-4℉～122℉)
13.60 to 13.80V
Float charging voltage(25℃) Temperature compensation:
Terminal
-18mV/℃
14.50 to 14.90V
Cyclic charging voltage(25℃) Temperature compensation:
-30mV/℃
Maximum charging current 2.16A
Terminal material Copper
Maximum discharge current 108A (5 sec.)
Designed floating life(20℃) 10years

◆ Absorbent glass mat technology;

◆ Recognized by UL & CE;
◆ ABS container.
Constant Current Discharge Characteristics (A, 25℃)
F.V/TIME 5min 10min 15min 30min 60min 2h 3h 4h 5h 10h 20h
9.60V 27.4 17.3 13.7 7.63 4.68 2.56 1.84 1.47 1.25 0.68 0.37
9.90V 26.5 16.8 13.4 7.48 4.61 2.54 1.83 1.46 1.24 0.68 0.36
10.2V 25.4 16.1 12.9 7.25 4.49 2.52 1.81 1.45 1.23 0.67 0.36
10.5V 24.4 15.4 12.4 7.07 4.40 2.48 1.80 1.44 1.22 0.67 0.36
10.8V 23.0 14.5 11.8 6.82 4.27 2.42 1.75 1.40 1.19 0.66 0.35
Constant Power Discharge Characteristics (Watt, 25℃)
F.V/TIME 5min 10min 15min 30min 60min 2h 3h 4h 5h 10h 20h
9.60V 305 195 156 87.5 54.2 29.9 21.8 17.5 14.9 8.16 4.38
9.90V 296 189 152 85.7 53.4 29.7 21.7 17.4 14.8 8.12 4.37
10.2V 284 181 147 83.1 52.0 29.5 21.5 17.3 14.7 8.08 4.35
10.5V 272 173 142 81.1 51.0 29.0 21.4 17.2 14.6 8.04 4.32
10.8V 256 164 134 78.1 49.4 28.3 20.7 16.6 14.2 7.87 4.23
Note: The above characteristics data can be obtained within three charge/discharge cycles.
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FirstPower Technology Co., Ltd. FP1272 (12V7.2Ah)
Discharge Characteristics(25℃) Charging Characteristics(25℃)

Charged

Volume

Voltage
Current
Voltage (V)

13.0
(% ) (C A ) (V )
12.0 140
1. D ischarge:100%
2. C harge vo ltage:2.40V /cell
11.0 120 0.25 3. C harge current:0.20C(A ) C harged V olum e
4. Tem perature:25°C
100 15.0
10.0 0.20 C harge V oltage

9.00 80
0.15 14.0

8.00 60
0.10
40 13.0
7.00
0 1 2 3 5 10 20 30 60 2 3 5 10 20 30 0.05 C harg ing C urrent
20
min h 12.0
0 0
0 2 4 6 8 10 12 14 16 18 20
Discharge time C harg ing tim e(hours)

Effect of Temperature on Capacity Self-discharge Characteristics

120
Capacity (%)

Capacity (%)
0.05C 100
100
0.1C
90
80 0.25C
1.0C 80

60
70

3.0C
40 60

20 50

40
0 0 2 4 6 8 10 12 14 16 18 20
-20 -10 0 10 20 30 40 50
Temperature(℃) Storage time: months

The Relationship for Open Circuit Voltage The Relationship for Charging Voltage and
and Residual Capacity (25℃) Temperature
14.00
Open Circuit Voltage (V)

Voltage(V)

12V
15.6
13.00
(20℃/68℉～25℃/77℉) 15.0
CYC
14.4
LE
12.00 USE
STA
NDB
13.8 Y U
SE
11.00
13.2

10.00 -10 0 10 20 30 40 50 60( ℃)

0 20 40 60 80 100 14 32 50 68 86 104 122 140(℉ )
Residual Capacity（%） Temperature

Floating Life on Temperature Cycle Life on D.O.D(25℃)

Capacity (%)

120
Life (years)

100
10
80

60 100% D.O.D. 50% D.O.D. 30% D.O.D.

1 40

20

0.1 0 200 400 600 800 1000 1200 1400

10 20 30 40 50 60 Number of cycles (cycles)
Temperature(℃)

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