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CUSTOMER SERVICE

Tel: +1-619-661-2030

Fax: +1-619-661-3648

customer-service@power-sonic.com

INTERNATIONAL SALES

Tel: +1-650-364-5001

Fax: +1-650-366-3662

international-sales@power-sonic.com

DOMESTIC SALES

Tel: +1-619-661-2020

Fax: +1-619-661-3650

national-sales@power-sonic.com

TECHNICAL SUPPORT

Tel: +1-619-661-2020

Fax: +1-619-661-3648

support@power-sonic.com

Contact Information

www.power-sonic.com

0211 1M

© 2011. Power-Sonic Corporation. All rights reserved. All trademarks are the property of their respective owners.

Charging

Cycle Applications: Limit initial current to 2.1A. Charge until battery voltage

(under charge) reaches 14.4 to 14.7 volts at 68°F (20°C). Hold at 14.4 to 14.7

volts until current drops to under 70mA. Battery is fully charged under these

conditions, and charger should be disconnected or switched to “float” voltage.

“Float” or “Stand-By” Service: Hold battery across constant voltage source of

13.5 to 13.8 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 specification sheets for “C-Series

Switch Mode Chargers” and “Transformer Type A and F Series”. Please contact our

Technical department for advice if you have difficulty in locating suitable models.

Standing Period (Months)

100

80

60

40

0

0

2

4

6

8

10

12 14 16 18 20

30

(86

Charging is not

necessary unless

100% of capacity

is required.

Charging before

use is necessary

to help recover

full capacity.

Chargemayfail

to restore full

capacity. Do not

let batteries reach

this state.

100

80

60

40

20

0

0

1

2

3

4

Ambient Temperature 20˚C (68˚F)

Float Charging Voltage

2.25 - 2.30 V/Cell

Years

120

100

80

60

40

20

0

0

200

400

600

800

1000

1200

Number of Cycles

1. Discharge Current 0.2C (Final Voltage 1.7V/Cell)

2. Charge Current: 0.1C

Discharge

Depth 30%

Discharge

Depth 100%

Discharge

Depth 50%

Discharge Characteristics

Discharge Time vs. Discharge Current

Shelf Life & Storage

Life Characteristics in Stand-By Use

Life Characteristics in Cyclic Use

PS-1270 12 Volt 7.0 AH

®

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

certification, etc..

13.0

12.0

11.0

10.0

9.0

8.0

14.0

Ambient Temperature 20

1.2 2.4

6

12

24 36 48 1

2

4 6 8 10 20 4 0

Discharge Time

Final

Voltage

min

h

0.35

0.70

1.4

3.5

7.0

14

0.35

0.70 1.4

3.5 7.0

14

Discharge Current (A)

20

15

10

5

2

1

30

10

5

40

20

0

10.2V

9.6V

9.0V

8.1V

Final

Voltage

10.5V