6FM40D
12V 40Ah(20hr)
The rechargeable batteries are lead-lead dioxide systems. The dilute sulfuric acid electrolyte
is absorbed by separators and plates and thus immobilized. Should the battery be accidentally
overcharged producing hydrogen and oxygen, special one-way valves allow the gases to
escape thus avoiding excessive pressure build-up. Otherwise, the battery is completely
sealed and is, therefore, maintenance-free, leak proof and usable in any position.
Battery Construction
Component
Positive plate
Negative plate
Container
Cover
Safety valve
Terminal
Separator
Electrolyte
Raw material
Lead dioxide
Lead
ABS
ABS
Rubber
Copper
Fiberglass
Sulfuric acid
General Features
●
●
●
●
●
●
●
●
Absorbent Glass Mat (AGM) technology
for efficient gas recombination of up to
99% and freedom from electrolyte
maintenance or water adding.
Not restricted for air transport-complies
with IATA/ICAO Special Provision A67.
UL-recognized component.
Can be mounted in any orientation.
Computer designed lead, calcium tin alloy
grid for high power density.
Long service life, float or cyclic
applications.
Maintenance-free operation.
Low self discharge.
Dimensions and Weight
Length(mm / inch)
Width(mm / inch)
Height(mm / inch)
Total Height(mm / inch)
Approx. Weight(Kg / lbs)
197.5 / 7.78
165.5 / 6.52
170 / 6.69
170 / 6.69
14.7 / 32.4
Performance Characteristics
Nominal Voltage
12V
Number of cell
6
Design Life
10 years
o
o
Nominal Capacity 77 F(25 C)
20 hour rate (2.0A, 10.8V)
40Ah
10 hour rate (3.88A, 10.8V)
38.8Ah
5 hour rate (6.97A, 10.5V)
34.85Ah
1 hour rate (25.5A, 9.6V)
25.5Ah
Internal Resistance
9.5mOhms
Fully Charged battery 77oF(25oC)
Self-Discharge
3% of capacity declined per month at 20oC(average)
Operating Temperature Range
Discharge
-20~60oC
Charge
-10~60oC
Storage
-20~60oC
o
o
400A(5s)
Max. Discharge Current 77 F(25 C)
Short Circuit Current
900A
Charge Methods: Constant Voltage Charge
Cycle use
Maximum charging current
Temperature compensation
Standby use
Temperature compensation
77oF(25oC)
2.30-2.35VPC
12A
-30mV/oC
2.23-2.27VPC
-20mV/oC
Discharge Constant Current (Amperes at 77oF25oC)
End Point
Volts/Cell
1.60V
1.65V
1.70V
1.75V
1.80V
5min
10min
15min
30min
45min
1h
3h
5h
10h
20h
125
118
113
105
96.2
89.4
85.0
80.5
76.1
69.1
71.2
66.9
64.8
63.0
57.0
41.0
39.7
38.0
37.1
35.4
30.7
30.0
29.9
28.7
28.3
25.5
25.2
24.8
24.5
23.4
10.6
10.3
10.1
9.85
9.62
7.32
7.20
7.07
6.97
6.77
4.14
4.08
4.02
3.95
3.88
2.08
2.06
2.04
2.02
2.00
Discharge Constant Power (Watts at 77oF25oC)
End Point
Volts/Cell
1.60V
1.65V
1.70V
1.75V
1.80V
5min
10min
15min
30min
45min
1h
2h
3h
5h
239
222
205
189
177
170
157
149
142
135
137
124
120
117
113
90.6
80.9
78.3
75.8
73.2
68.6
62.5
59.3
58.1
56.9
54.8
50.4
49.6
48.8
47.9
30.8
28.7
27.9
27.4
26.9
22.8
21.5
20.7
20.4
20.0
14.9
14.0
13.8
13.6
13.5
(Note)The above characteristics data are average values obtained within
three charge/discharge cycles not the mimimum values.
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O
Current
Charged
Volume
Discharge characteristic (25 C)
Voltage
6FM40D
Charge characteristic curve
Constant voltage charge characteristic
(0.25CA,25 oC)
(%) (XCA) (V)
12.0
12V 40Ah
Battery voltage(V)
140
9.85A 6.97A
9.6
3.88A
120
0.25
100
0.20
80
35A 25.5A
75A
0.15
1
2
3
20 30
5
10
min
60
2
3
5
10
20
0.10
20
0.05
0
0
h
CHARGED VOLUME
14.0
CHARGE VOLTAGE
13.0
60
40
0
15.0
12.0
11.0
0
Discharge time
(V/8V)
(V/6V)
(V/4V)
(V/CELL)
7.8
5.2
2.6
10.0
7.5
5.0
2.5
14.4
9.6
7.2
4.8
2.4
13.8
9.2
6.9
4.6
2.3
13.2
8.8
6.6
4.4
2.2
CY
CL
10
12
14
16
18
20
ND B
EU
SE
Y US
12
14
16
18
Storage time: months
20
90
80
70
60
E
40 oC
30 o C
20 o C
50
0
10
20
30
40
50
Ambient temperature( oC)
40
60
0
2
4
6
8
10
Cycle service life in relation to
depth of discharge
Life characteristics of standby use
120
120
100
100
Capacity(%)
Capacity(%)
8
110
-10
80
60
Testing conditions: floating voltage: 2.27 to 2.30V/Cell
o
o
ambient temperature: 25 C(77 F)
80
60
40
40
20
20
0
4
6
Life(year)
100% D.O.D.
0
8
200
30% Depth of discharge
50% D.O.D.
400
600
800
1000
1200
1400
1600
Number of cycles(cycles)
Temperature effects on float life
Temperature effects on capacity
120
15
100
C
0 .0 5
0 .1 C
0 .2 C
2.30V/Cell
10
Capacity (%)
Life(years)
6
100
S TA
0
4
Self-discharge characteristic
Capacity(%)
(V/12V)
10.4
15.0
2
Charging time (hours)
Relationship between
charging voltage and temperature
15.6
CHARGING CURRENT
5
80
60
1.0C
2.0C
40
20
0
10
20
30
40
0
50
-20
-10
Temperature( o C)
THE INTERNATIONAL CERTIFICATION NETWORK
ISO9001:2000
MH25860
0
10
20
Temperature( oC)
30
40
G4M19906-9202-E-16
www.vision-batt.com
Shenzhen Center Power Tech. Co., Ltd.
Center Power Industrial Park, Tongfu Industrial District Dapeng Town, 518120 Shenzhen, China
Tel: (+86-755) 8431 8088 Fax: (+86-755) 8431 8038 E-mail:
Copy Right Shenzhen Center Power Technology Co., Ltd (Edition 2011-8)
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