[Full Guide] What is a Group GC2 Battery？

When it comes to powering electric golf carts, floor scrubbers, renewable energy systems, and even RVs, one battery size keeps popping up—Group GC2. But what exactly does "GC2" mean? What are the dimensions, voltage, benefits, and applications of this battery type? And perhaps most importantly, is it the right choice for your needs?

In this full guide, we’ll answer all those questions and more. Whether you’re new to deep-cycle batteries or a seasoned user looking for a reliable upgrade, read on to understand why GC2 batteries have become the go-to solution for heavy-duty applications.

Understanding Group GC2 Batteries

The term “Group GC2” refers to a battery classification system defined by BCI (Battery Council International). This system standardizes battery sizes, dimensions, terminal placements, and intended use. In the case of GC2 batteries, the "GC" stands for Golf Cart, and the “2” indicates the specific size and form factor.

But don't let the name fool you—GC2 batteries aren’t just for golf carts. They’re robust, long-lasting, and specifically designed for deep cycle use. This means they’re built to discharge energy slowly over long periods and recharge many times—a crucial quality for applications that demand consistent, reliable power.

The Dimensions of Group GC2

One of the defining features of a GC2 battery is its physical size. According to BCI standards, most GC2 batteries have the following dimensions:

• Length: ~10.25 inches (260 mm)

• Width: ~7.13 inches (181 mm)

• Height: ~11.25 inches (286 mm)

These compact-yet-powerful batteries typically weigh 60–70 lbs, depending on the type (AGM, Flooded, or Lithium). Their standardized size allows them to fit snugly in golf carts, cleaning machines, and battery compartments of RVs.

Terminal Types

GC2 batteries can have various terminal types—commonly threaded stud or SAE post—depending on your application. Always make sure the terminal type matches your connection setup for proper installation.

How Many Volts is a GC2 Deep Cycle Battery?

A standard GC2 battery is rated at 6 volts. This may seem low compared to common 12V batteries, but the beauty of GC2 batteries lies in their stackability.

• To achieve 36 volts, you connect six GC2 6V batteries in series.

• To reach 48 volts (common in modern golf carts), you’d need eight GC2 batteries.

This modular approach gives users flexibility to customize their power systems while benefiting from the deep-cycle durability of the 6V format.

The Applications of Group GC2 Battery

Though originally designed for golf carts, the GC2 battery has found a home in many other applications due to its deep-cycle reliability and long runtime. Here are some common uses:

1. Golf Carts

• The original use case.

• GC2 batteries deliver consistent power over long distances on the course.

2. Floor Scrubbers and Industrial Cleaning Machines

• Perfect for equipment requiring long hours of low-drain power.

• Deep cycle capacity ensures they last through multiple cleaning shifts.

3. Renewable Energy Storage

• Widely used in solar panel and off-grid systems.

• Stores energy during the day for use at night or during cloudy weather.

4. RVs and Campers

• GC2 batteries are popular among boondockers and off-grid RVers.

• Provides long-lasting power for lights, fridges, and inverters.

5. Marine Use

• Ideal for trolling motors and auxiliary systems.

• Rugged construction holds up in wet, vibrating environments.

• Stores energy during the day for use at night or during cloudy weather.

If you're searching for a high-performance GC2 option, consider the Weize 6V Golf Cart Battery, 210Ah, BCI Group GC2 Deep Cycle AGM Scrubber Battery. Its AGM (Absorbent Glass Mat) technology provides spill-proof, maintenance-free reliability, making it a favorite for heavy-duty and renewable energy applications.

Advantages and Disadvantages of GC2 Battery

Advantages

• Deep Cycle Performance: Built for long, sustained energy delivery.

• Long Lifespan: Can handle hundreds or even thousands of cycles if maintained properly.

• Compact Size: Standardized form factor fits into many types of equipment.

• Flexible Voltage Configurations: Can be linked in series to reach 12V, 24V, 36V, or 48V systems.

• High Capacity: Many GC2 batteries offer 200Ah or more, perfect for extended use.

Disadvantages

• Weight: A single battery can weigh 60+ lbs, making handling and installation more difficult.

• Initial Cost: Premium GC2 AGM batteries can be more expensive than flooded alternatives.

• Voltage Confusion: Since they’re 6V, you’ll need multiple batteries wired together for higher voltages.

• Maintenance (for flooded types): Some GC2 batteries require frequent water top-offs and cleaning.

If you prefer zero maintenance, opt for sealed AGM models like the Weize GC2 AGM Battery, which combines deep-cycle performance with a spill-proof, no-hassle design.

How Long Does a GC2 Battery Last?

Battery life depends on several factors, including:

• Battery Type: AGM and Lithium batteries typically last longer than flooded lead-acid.

• Depth of Discharge (DoD): Shallower discharges = longer battery life.

• Charging Practices: Proper charging extends life; overcharging shortens it.

• Operating Temperature: Extreme cold or heat can reduce lifespan.

On average:

• Flooded GC2: ~3–5 years (if maintained well)

• AGM GC2 (like Weize 6V 210Ah): ~5–7 years

• Lithium GC2: ~8–12 years

The Weize 6V 210Ah GC2 AGM Battery is engineered for durability with robust plates and valve-regulated design, giving users up to 1,200 cycles at 50% depth of discharge.

Are There Maintenance-Free GC2 Golf Cart Batteries?

Yes! One of the biggest advancements in GC2 technology has been the shift from flooded to maintenance-free battery options like AGM and Lithium.

Maintenance-Free GC2 Options:

AGM (Absorbent Glass Mat):

• Sealed and spill-proof

• No water top-ups required

• Safer in enclosed or mobile environments

Lithium Iron Phosphate (LiFePO₄):

• Ultra-lightweight and long-lasting

• Highest cycle life (up to 8,000 cycles)

• Built-in Battery Management System (BMS) for protection

If you want a maintenance-free GC2 battery without the higher price tag of lithium, the Weize 6V 210Ah AGM GC2 Battery is a solid choice. It delivers long runtime, deep discharge capability, and no maintenance—all in a durable, sealed package.

Final Thoughts

Whether you're powering a golf cart, outfitting an RV, or building a solar energy system, understanding the GC2 battery group is essential. With its 6V configuration, deep-cycle design, and broad application versatility, it’s no wonder the Group GC2 battery has become a favorite among professionals and enthusiasts alike.

And if you’re looking for a reliable, maintenance-free, and long-lasting solution, don’t miss the Weize 6V 210Ah BCI Group GC2 AGM Battery. It’s a top-tier option that combines power, convenience, and long-term value—making your power system more efficient and worry-free.