SigmasTek RB6360-F2 6V 36Ah SLA Replacement Battery - Reliable OEM Fit

In this review the SigmasTek RB6360-F2 is evaluated as a direct replacement for legacy 6V 36Ah sealed lead acid batteries. The bottom line: it is for anyone needing a guaranteed OEM-compatible swap for models like UB6420 (40560), PS-6360, DJW6-42-T2 and PT36-6-NB, and the single biggest reason to buy is its assured compatibility and one year minimum warranty, which simplifies maintenance for UPS, emergency lighting, and mobility devices.

Key Features

• Guaranteed compatibility: Ships as a direct replacement for several manufacturer part numbers so it fits and connects without modification.
• Sealed lead acid chemistry: Offers a maintenance-free power source appropriate for standby and cyclic applications like UPS and alarms.
• F2 terminal configuration: Provides the common F2 terminal connections used by many consumer and commercial battery bays for easy installation.
• One year warranty: Includes a minimum one year warranty for basic peace of mind on replacements used in critical systems.
• Single item packaging: Sold as a single unit which is convenient for replacing one failed battery at a time in multi-battery systems.

Who It's For

This battery is best for technicians, facility managers, and homeowners who need a dependable replacement for legacy 6V 36Ah SLA cells in UPS units, emergency lighting, security and fire alarm panels, scooters, wheelchairs, and certain medical devices. The promise of guaranteed OEM compatibility makes it a sensible choice when swapping into an existing battery compartment where fit and terminal orientation matter.

It is less appropriate for users seeking novel battery chemistry, higher cycle-life specialty batteries, or those who require manufacturer-specific branding and paperwork beyond a compatible replacement and warranty. If you need custom voltages or capacities, a different battery family would be a better match.

Pros & Cons

Pros

• Direct replacement for multiple part numbers, simplifying procurement and installation.
• Sealed lead acid design means no maintenance and familiar handling for technicians.
• F2 terminals are standard and allow straightforward connectivity in many devices.
• Comes with at least a one year warranty, offering a baseline of consumer protection.

Cons

• As a sealed lead acid battery, it is heavier and bulkier than modern lithium alternatives.
• Warranty detail is limited to a minimum one year; longer commercial warranties are not specified.

Specifications

Brand	SigmasTek
Model	RB6360-F2 (SP6-36 T2)
Voltage	6 Volt
Capacity	36 Ah
Battery type	Sealed Lead Acid (SLA)
Terminal type	F2 terminals
Package quantity	1

Our Verdict

The SigmasTek RB6360-F2 is a practical, value-oriented replacement for devices that require a 6V 36Ah sealed lead acid cell and F2 terminals; its guaranteed compatibility with several legacy part numbers and included warranty make it a low-risk swap. For maintenance crews and end users who prioritize fit, proven chemistry, and a straightforward replacement process, it represents good value compared with sourcing original OEM units.

Frequently Asked Questions

Is this battery compatible with UB6420 and similar models?
Yes. It is sold as a direct replacement for UB6420 (40560), PS-6360, DJW6-42-T2, SLA0139, SLA0993 and PT36-6-NB and is intended to match those fits and terminals.

What type of terminal does the battery use?
The RB6360-F2 uses F2 terminals, the common flat blade connectors used in many UPS and alarm batteries.

Does the battery include a warranty?
Yes. The replacement battery includes a minimum one year warranty for defects and compatibility issues.