SLA Batteries (Sealed Lead Acid)

Everything You Need to Know About SLA Batteries

SLA batteries, also known as Sealed Lead Acid batteries, are one of the most widely used battery technologies in the world.

They are trusted for their reliability, safety, affordability, and versatility across many industries.

At Durham Battery, we help customers across Ontario and surrounding areas understand, select, and maintain the right SLA batteries for their specific applications.

This guide is designed to answer common questions and provide clear, practical information for both residential and commercial users.

What Is an SLA Battery?

An SLA (Sealed Lead Acid) battery is a rechargeable battery that uses lead plates and sulfuric acid, sealed inside a maintenance-free casing.

Unlike traditional flooded batteries, SLA batteries do not require water refilling and are designed to be spill-proof and safe for indoor use.

These batteries are commonly used where dependable, consistent power is required and where maintenance needs to be minimal.

There are two main types of SLA batteries:

1. AGM (Absorbent Glass Mat) Batteries

AGM batteries use fiberglass mats to absorb the electrolyte. They offer:

• Faster charging

• Higher power output

• Better vibration resistance

• Excellent performance in cold Ontario winters

2. Gel Cell Batteries

Gel batteries use a gel-based electrolyte. They are known for:

• Deep discharge capability

• Long lifespan in steady-load applications

• Smooth and consistent power delivery

Both types are sealed, safe, and maintenance-free.

Common Voltage and Capacity Options

SLA batteries are available in multiple voltages and amp-hour (Ah) capacities, including:

• 6V SLA batteries

• 8V SLA batteries

• 12V SLA batteries

Common capacities range from 2.3Ah up to 110Ah, depending on the application.

Choosing the correct voltage and capacity is critical for performance and battery life.

What Are SLA Batteries Used For?

SLA batteries are extremely versatile and used in many everyday and industrial applications, including:

Residential & Commercial Uses

• Backup power systems

• Emergency lighting

• Alarm and security systems

• UPS (Uninterruptible Power Supplies)

• Internet and communication equipment

Mobility & Medical Equipment

• Mobility scooters

• Power wheelchairs

• Medical devices

• Patient lift systems

Recreational & Specialty Equipment

• Ride-on toys

• Small electric vehicles

• Marine electronics

• RV backup systems

Industrial & Commercial Equipment

• Floor machines

• Industrial control panels

• Access control systems

• Solar and off-grid systems

Advantages of SLA Batteries

SLA batteries remain popular because they offer:

• Maintenance-free operation

• Spill-proof and leak-resistant design

• Safe indoor installation

• Reliable performance year-round

• Cost-effective power solutions

• Wide availability of sizes and formats

These features make them ideal for both personal and professional use.

How Long Do SLA Batteries Last?

The lifespan of an SLA battery depends on:

• Depth of discharge

• Charging quality

• Temperature conditions

• Frequency of use

On average:

• 3 to 5 years in standby applications

• 1.5 to 3 years in frequent deep-cycle use

Proper charging and avoiding over-discharge significantly extend battery life.

Choosing the Right SLA Battery

When selecting an SLA battery, always consider:

• Voltage (6V, 8V, or 12V)

• Capacity (Ah rating)

• Physical dimensions

• Terminal type

• Intended application

If unsure, professional guidance can prevent costly mistakes and equipment damage.

Why Buy Your SLA Batteries from Durham Battery?

• Local Ontario expertise

• Wide selection of SLA battery sizes and types

• Honest guidance and technical support

• Competitive pricing

• Reliable stock availability

We are committed to helping our customers make informed decisions and keep their systems powered reliably.

Serving Ontario and Surrounding Areas

Durham Battery is proudly based in Courtice, Ontario, and we serve customers throughout:

Durham Region, Oshawa, Bowmanville, Ajax, Whitby, Toronto and GTA.

All of Ontario and nearby regions

Whether you are a homeowner, business owner, contractor, or industrial client, we provide expert advice and high-quality SLA batteries tailored to your needs.

Need Help Choosing the Right SLA Battery?

If you have questions or need assistance selecting the correct SLA battery, our team is ready to help.

Located in Courtice, Ontario

Serving all of Ontario and surrounding areas

Contact Durham Battery for expert battery solutions.