Power Sonic 6 Volt 4.5 Ah Battery, PS-640

  • save 5% buy 20 for $8.03 each

The Power Sonic PS-640 (6 Volt - 4.5 Amp Hour) is a compact general purpose Valve Regulated Lead Battery, Absorbed Glass Mat (AGM) battery boasting excellent performance with an estiamted 5-year design life. The PS-640 is an excellent battery for custom designs, medical equipment and devices, security systems and battery back-up. 

Uses / Applications

The Power Sonic PS-640 is commonly used in the following applications:

Security Systems, Alarms

Emergency Lighting

Exit Lights


General Purpose

Custom Battery Designs


Features of the Power Sonic PS-640:

Absorbed Glass Mat (AGM) Technology

Valve Regulated Lead Acid (VRLA) Battery

Spill-proof, Maintenance-Free Construction

Rugged Vibration and Impact Resistant ABS Case

Gas Recombination Technology

5-Year Design Life


The Power Sonic PS-640 holds the following approvals and certifications.

DOT, IATA, FAA and CAB certified

Approved for air transportation

UL Recognized

ISO9001:2015 Approved - Quality Management Systems


Length: 2.60" (66mm)

Width: 1.30" (33mm)

Height: 4.65" (118mm)

Height Over Terminal: 4.80" (122mm)

Tolerances are +/- 0.04 in. (+/- 1mm) and +/- 0.08 in. (+/-2mm) for height dimensions. All data subject to change without notice.

Terminal Options

F1 Faston

Quick Disconnect Tabs



Nominal Voltage

6 Volts (3 Cell)

Nominal Capacity

20 Hr (225 mA to 5.25 Volts) - 4.50 Ah

10 Hr (410 mA to 5.25 Volts) -4.10 Ah

5 Hr (650 mA to 5.10 Volts) - 3.25 Ah

1 Hr (2.75 A to 4.50 Volts) - 2.75 Ah

Internal Resistance (Approximate)

25.0 Milliohms

Max Short-Duration Discharge Current (10 Seconds)

45.0 Amps

Shelf Life (% of nominal capacity at 68° F (20° C)

1 Month - 97%

3 Month - 91%

6 Month - 83%

Operating Temperature Range

Charge: 5° F (-15° C) to 122° F (50° C)

Discharge: -4° F (-20° C) to 140° F (60° C)

More Information
Part Number PS-640
Battery Voltage 6 Volt
Amp Hour Rate 4.5 Ah
Battery Chemsitry SLA (Sealed Lead Acid)
Terminal Type F1
Length 2.76"
Width 1.86"
Height 3.94"
Height Over Terminal 4.25"
NSN 6140-01-338-9155
Warranty 6 Months
Customer Reviews
Enter your shipping information below to get a shipping estimate.
Customer Questions
No Questions
Did you find what you were looking for?

Ratings & Reviews

Be the first to review this product