Standard Series

FP1245 12V4.5Ah
Dimension(mm)

90 70

107
101
4.8 0.8
6.35

T1
Terminal

Specification
The Relationship for Open Circuit Voltage
Nominal Voltage 12 V O
and Residual Capacity (25 C)
Capacity(20HR, 25℃) 4.5 Ah
14.00
Length 90mm (3.54inch)
13.50

Open Circuit Voltage (V)

Width 70mm (2.76inch) (25 OC/77 OF)
13.00
Dimension 12.50
Height 101mm (3.98inch)
12.00
Total Height 107mm (4.21inch) 11.50
Approx. Weight 1.47kg (3.23lbs) 11.00
10.50
Characteristics
10.00
0 20 40 60 80 100
20 hour rate 4.5Ah
Residual Capacity (%)
Capacity 20℃ 10 hour rate 4.5Ah
O
(68℉) To 5 hour rate 3.75Ah Charging Characteristics(25 C)
1.70V/Cell Volume
1 hour rate 3.02Ah Charged
Current Voltage
(%) (CA) (V)
15 min rate 2.11Ah 140
Discharge:100% Charge voltage:2.30V/cell
Internal resistance(Fully charged, 25℃) Approx. 40mΩ 120 0.25 15.0 Temperature:25 OC Charge current:0.20CA
100 0.20 Charged volume
40℃ 102% 14.0
Capacity 80
0.15 Charge voltage
affected by 25℃ 100% 60 13.0
0.10
temperature 40 12.0
0℃ 85%
(20HR) 20 0.05 11.0 Charging current
-15℃ 65% 0 0 0
0 2 4 6 8 10 12 14 16 18 20
3 month Remaining Capacity: 91% Charging time (hours)
Self-discharge
6 month Remaining Capacity: 82%
(25℃) Cycle Life(25 C)
O

12 month Remaining Capacity: 65%

120
Nominal operating temperature 25℃±3℃(77℉±5℉)
100
Operating temperature range -15℃~50℃(5℉~122℉)
Capacity (%)

80
Float charging voltage(25℃) 13.60 to 13.80V 60
100%D.O.D. 50%D.O.D. 30% Depth of discharge
Cyclic charging voltage(25℃) 14.50 to 14.90V 40
Maximum charging current 1.35A 20
Terminal material Copper 0
0 200 400 600 800 1000 1200 1400
Maximum discharge current 68A(5 Sec.) Number of cycles(cycles)

Constant Current Discharge Characteristics (A, 25 OC) Constant Power Discharge Characteristics (Watt, 25 OC)
F.V/TIME 5min 10min 15min 30min 60min 3h 5h 10h 20h 5min 10min 15min 30min 60min 3h 5h 10h 20h

9.60V 16.2 10.8 8.80 4.80 3.10 1.12 0.76 0.45 0.23 181 122 100 55.0 35.9 13.3 9.07 5.36 2.68
10.2V 15.4 10.3 8.45 4.65 3.02 1.10 0.75 0.45 0.23 172 116 96.3 53.3 35.0 13.1 8.96 5.31 2.68
10.8V 14.5 9.6 8.03 4.47 2.92 1.06 0.74 0.44 0.22 162 109 91.5 51.2 33.8 12.6 8.84 5.31 2.64

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