PS-621 6 Volt 2.0 AH
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Contact Information www.power-sonic.com
0613 1M
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Charging
Cycle Applications: Limit initial current to 600mA. Charge until battery voltage
(under charge) reaches 7.20 to 7.35 volts at 68°F (20°C). Hold at 7.20 to 7.35
volts until current drops to under 20mA. Battery is fully charged under these
conditions, and charger should be disconnected or switched to “oat” voltage.
“Float” or “Stand-By” Service: Hold battery across constant voltage source of
6.75 to 6.90 volts continuously. When held at this voltage, the battery will seek its
own current level and maintain itself in a fully charged condition.
Note: Due to the self-discharge characteristics of this type of battery, it is
imperative that they be charged within 6 months of storage, otherwise permanent
loss of capacity might occur as a result of sulfation.
Chargers
Power-Sonic offers a wide range of chargers suitable for batteries up to 100AH.
Please refer to the Charger Selection Guide in our specication sheets for “C-Series
Switch Mode Chargers” and “Transformer Type A and F Series”. Please contact our
Technical department for advice if you have difculty in locating suitable models.
Further Information
Please refer to our website www.power-sonic.com for a complete range of useful
downloads, such as product catalogs, material safety data sheets (MSDS), ISO
certication, etc..
0 20 0 40 0 60 0 80 0 10 00 12 00
20
40
60
80
10 0
12 0
0
Capacity (%)
Number of Cycles
100%
DOD
50%
DOD
30%
DOD
Testing condition
Discharging:current 0.17C (FV 1.7V/cell);
Charging:current 2.45V/cell,max. 0.25CA;
Charging volume:125% of discharged capacity.
Ambient Temperature:
25°C(77°F)
810 12
0
46
60
80
100
02
20
40
A
B
C
Remaining Capacity (%)
Storage Time (Months)
A
B
C
10°C
30°C
40°C
No supplementary charge required
(Carry out supplementary charge before use if 100% capacity is required.)
Supplementary charge required before use.Optional charging way as below:
1.Charged for above 3 days at limted current 0.25CA and constant volatge 2.25V/cell.
2.Charged for above 20hours at limted current 0.25CA and constant volatge 2.45V/cell.
3.Charged for 8~10hours at limted current 0.05CA .
Supplementary charge may often fail to recover the capacity.
The battery should never be left standing till this is reached
25°C
2
1
0.5 20
68
30
86
40
104
50
122
3
4
5
6
8
10
Life Expectancy (Year)
Battery Temperature
Charging Voltage
2.25 V/Cell
°C
°F
-
20 - 10 010 20 30 40 50
0
20
40
60
80
100
120
0.05CA
0.10 CA
0.20CA
1CA
2CA
3CA
Capacity Ratio (%)
Temperature(°C)
0.10CA - 2.25 V/Cell Temperature: 25°C
After 100% Dis charg e
C ha rgin g C urr ent
After 50% D is charg e
C harged V olume
04812 16 20 24 2 32 36 408
% (A) (V/cell)
Charge
Volume
Charging
Current
Charged
Voltage
Charging Time (Hours)
120 0.25
0.20
0.15
0.10
0.05
0
100
80
60
40
20
7.5
7.0
6.5
6.0
5.5
Charging Current
Charged Volume
Charge Voltage
Constant 2.25 V/Cell
After 50% Discharge
After 100% Discharge
1 2 46 8 10 20 40 60 24 6 8 10 20
min h
4.0
4.5
5.0
5.5
6
6V Battery
(V)
.0
6.5
Terminal Voltage (V)
Temperature: 25°C
Discharge Time
6A 4A
2A 1.26A
.186A
.80A .414A .10A
0 20 0 40 0 60 0 80 0 10 00 12 00
20
40
60
80
10 0
12 0
0
Capacity (%)
Number of Cycles
100%
DOD
50%
DOD
30%
DOD
Testing condition
Discharging:current 0.17C (FV 1.7V/cell);
Charging:current 2.45V/cell,max. 0.25CA;
Charging volume:125% of discharged capacity.
Ambient Temperature:
25°C(77°F)
810 12
0
46
60
80
100
02
20
40
A
B
C
Remaining Capacity (%)
Storage Time (Months)
A
B
C
10°C
30°C
40°C
No supplementary charge required
(Carry out supplementary charge before use if 100% capacity is required.)
Supplementary charge required before use.Optional charging way as below:
1.Charged for above 3 days at limted current 0.25CA and constant volatge 2.25V/cell.
2.Charged for above 20hours at limted current 0.25CA and constant volatge 2.45V/cell.
3.Charged for 8~10hours at limted current 0.05CA .
Supplementary charge may often fail to recover the capacity.
The battery should never be left standing till this is reached
25°C
2
1
0.5 20
68
30
86
40
104
50
122
3
4
5
6
8
10
Life Expectancy (Year)
Battery Temperature
Charging Voltage
2.25 V/Cell
°C
°F
-
20 - 10 010 20 30 40 50
0
20
40
60
80
100
120
0.05CA
0.10 CA
0.20CA
1CA
2CA
3CA
Capacity Ratio (%)
Temperature(°C)
0.10CA - 2.25 V/Cell Temperature: 25°C
After 100% Dis charg e
C ha rgin g C urr ent
After 50% D is charg e
C harged V olume
04812 16 20 24 2 32 36 408
% (A) (V/cell)
Charge
Volume
Charging
Current
Charged
Voltage
Charging Time (Hours)
120 0.25
0.20
0.15
0.10
0.05
0
100
80
60
40
20
7.5
7.0
6.5
6.0
5.5
Charging Current
Charged Volume
Charge Voltage
Constant 2.25 V/Cell
After 50% Discharge
After 100% Discharge
1 2 46 8 10 20 40 60 24 6 8 10 20
min h
4.0
4.5
5.0
5.5
6
6V Battery
(V)
.0
6.5
Terminal Voltage (V)
Temperature: 25°C
Discharge Time
6A 4A
2A 1.26A
.186A
.80A .414A .10A
0 20 0 40 0 60 0 80 0 10 00 12 00
20
40
60
80
10 0
12 0
0
Capacity (%)
Number of Cycles
100%
DOD
50%
DOD
30%
DOD
Testing condition
Discharging:current 0.17C (FV 1.7V/cell);
Charging:current 2.45V/cell,max. 0.25CA;
Charging volume:125% of discharged capacity.
Ambient Temperature:
25°C(77°F)
810 12
0
46
60
80
100
02
20
40
A
B
C
Remaining Capacity (%)
Storage Time (Months)
A
B
C
10°C
30°C
40°C
No supplementary charge required
(Carry out supplementary charge before use if 100% capacity is required.)
Supplementary charge required before use.Optional charging way as below:
1.Charged for above 3 days at limted current 0.25CA and constant volatge 2.25V/cell.
2.Charged for above 20hours at limted current 0.25CA and constant volatge 2.45V/cell.
3.Charged for 8~10hours at limted current 0.05CA .
Supplementary charge may often fail to recover the capacity.
The battery should never be left standing till this is reached
25°C
2
1
0.5 20
68
30
86
40
104
50
122
3
4
5
6
8
10
Life Expectancy (Year)
Battery Temperature
Charging Voltage
2.25 V/Cell
°C
°F
-
20 - 10 010 20 30 40 50
0
20
40
60
80
100
120
0.05CA
0.10 CA
0.20CA
1CA
2CA
3CA
Capacity Ratio (%)
Temperature(°C)
0.10CA - 2.25 V/Cell Temperature: 25°C
After 100% Dis charg e
C ha rgin g C urr ent
After 50% D is charg e
C harged V olume
04812 16 20 24 2 32 36 408
% (A) (V/cell)
Charge
Volume
Charging
Current
Charged
Voltage
Charging Time (Hours)
120 0.25
0.20
0.15
0.10
0.05
0
100
80
60
40
20
7.5
7.0
6.5
6.0
5.5
Charging Current
Charged Volume
Charge Voltage
Constant 2.25 V/Cell
After 50% Discharge
After 100% Discharge
1 2 46 8 10 20 40 60 24 6 8 10 20
min h
4.0
4.5
5.0
5.5
6
6V Battery
(V)
.0
6.5
Terminal Voltage (V)
Temperature: 25°C
Discharge Time
6A 4A
2A 1.26A
.186A
.80A .414A .10A
0 20 0 40 0 60 0 80 0 10 00 12 00
20
40
60
80
10 0
12 0
0
Capacity (%)
Number of Cycles
100%
DOD
50%
DOD
30%
DOD
Testing condition
Discharging:current 0.17C (FV 1.7V/cell);
Charging:current 2.45V/cell,max. 0.25CA;
Charging volume:125% of discharged capacity.
Ambient Temperature:
25°C(77°F)
810 12
0
46
60
80
100
02
20
40
A
B
C
Remaining Capacity (%)
Storage Time (Months)
A
B
C
10°C
30°C
40°C
No supplementary charge required
(Carry out supplementary charge before use if 100% capacity is required.)
Supplementary charge required before use.Optional charging way as below:
1.Charged for above 3 days at limted current 0.25CA and constant volatge 2.25V/cell.
2.Charged for above 20hours at limted current 0.25CA and constant volatge 2.45V/cell.
3.Charged for 8~10hours at limted current 0.05CA .
Supplementary charge may often fail to recover the capacity.
The battery should never be left standing till this is reached
25°C
2
1
0.5 20
68
30
86
40
104
50
122
3
4
5
6
8
10
Life Expectancy (Year)
Battery Temperature
Charging Voltage
2.25 V/Cell
°C
°F
-
20 - 10 010 20 30 40 50
0
20
40
60
80
100
120
0.05CA
0.10 CA
0.20CA
1CA
2CA
3CA
Capacity Ratio (%)
Temperature(°C)
0.10CA - 2.25 V/Cell Temperature: 25°C
After 100% Dis charg e
C ha rgin g C urr ent
After 50% D is charg e
C harged V olume
04812 16 20 24 2 32 36 408
% (A) (V/cell)
Charge
Volume
Charging
Current
Charged
Voltage
Charging Time (Hours)
120 0.25
0.20
0.15
0.10
0.05
0
100
80
60
40
20
7.5
7.0
6.5
6.0
5.5
Charging Current
Charged Volume
Charge Voltage
Constant 2.25 V/Cell
After 50% Discharge
After 100% Discharge
1 2 46 8 10 20 40 60 24 6 8 10 20
min h
4.0
4.5
5.0
5.5
6
6V Battery
(V)
.0
6.5
Terminal Voltage (V)
Temperature: 25°C
Discharge Time
6A 4A
2A 1.26A
.186A
.80A .414A .10A
Cycle Life in Relation to Depth of Discharge
0 20 0 40 0 60 0 80 0 10 00 12 00
20
40
60
80
10 0
12 0
0
Capacity (%)
Number of Cycles
100%
DOD
50%
DOD
30%
DOD
Testing condition
Discharging:current 0.17C (FV 1.7V/cell);
Charging:current 2.45V/cell,max. 0.25CA;
Charging volume:125% of discharged capacity.
Ambient Temperature:
25°C(77°F)
810 12
0
46
60
80
100
02
20
40
A
B
C
Remaining Capacity (%)
Storage Time (Months)
A
B
C
10°C
30°C
40°C
No supplementary charge required
(Carry out supplementary charge before use if 100% capacity is required.)
Supplementary charge required before use.Optional charging way as below:
1.Charged for above 3 days at limted current 0.25CA and constant volatge 2.25V/cell.
2.Charged for above 20hours at limted current 0.25CA and constant volatge 2.45V/cell.
3.Charged for 8~10hours at limted current 0.05CA .
Supplementary charge may often fail to recover the capacity.
The battery should never be left standing till this is reached
25°C
2
1
0.5 20
68
30
86
40
104
50
122
3
4
5
6
8
10
Life Expectancy (Year)
Battery Temperature
Charging Voltage
2.25 V/Cell
°C
°F
-
20 - 10 010 20 30 40 50
0
20
40
60
80
100
120
0.05CA
0.10 CA
0.20CA
1CA
2CA
3CA
Capacity Ratio (%)
Temperature(°C)
0.10CA - 2.25 V/Cell Temperature: 25°C
After 100% Dis charg e
C ha rgin g C urr ent
After 50% D is charg e
C harged V olume
04812 16 20 24 2 32 36 408
% (A) (V/cell)
Charge
Volume
Charging
Current
Charged
Voltage
Charging Time (Hours)
120 0.25
0.20
0.15
0.10
0.05
0
100
80
60
40
20
7.5
7.0
6.5
6.0
5.5
Charging Current
Charged Volume
Charge Voltage
Constant 2.25 V/Cell
After 50% Discharge
After 100% Discharge
1 2 46 8 10 20 40 60 24 6 8 10 20
min h
4.0
4.5
5.0
5.5
6
6V Battery
(V)
.0
6.5
Terminal Voltage (V)
Temperature: 25°C
Discharge Time
6A 4A
2A 1.26A
.186A
.80A .414A .10A
Temperature Effects in Relation to Battery Capacity
Self Discharge Characteristics
Discharge Characteristics Charging Characteristics (Cycle Use)