Power Sonic 6 Volt 2 Ah Battery, PS-621

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The Power Sonic PS-621 (6 Volt - 2.0 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-621 is an excellent battery for custom designs, medical equipment and devices, security systems and battery back-up. 

Uses / Applications

The Power Sonic PS-621 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-621:

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-621 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: 1.69" (43mm)

Width: 1.46" (37mm)

Height: 2.99" (76mm)

Height Over Terminal: 2.99" (76mm)

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 (100 mA to 5.25 Volts) - 2.00 Ah

10 Hr (186 mA to 5.25 Volts) - 1.86 Ah

5 Hr (336 mA to 5.10 Volts) - 1.68 Ah

1 Hr (1.21 A to 4.50 Volts) - 1.21 Ah

Internal Resistance (Approximate)

65.0 Milliohms

Max Short-Duration Discharge Current (10 Seconds)

20.0 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-621
Battery Voltage 6 Volt
Amp Hour Rate 2 Ah
Battery Chemsitry SLA (Sealed Lead Acid)
Terminal Type F1
Length 1.69"
Width 1.46"
Height 2.99"
Height Over Terminal 2.99"
Warranty 6 Months
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