Great Northern Battery Systems

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Great Northern Battery Systems Stocking a full selection of automotive, marine & commercial batteries, motorcycle, snowmobile and power sport batteries, deep cycle & AGM batteries.

Many car batteries have removable vent caps that expose the fill wells inside. These allow you to check the electrolyte ...
10/14/2026

Many car batteries have removable vent caps that expose the fill wells inside. These allow you to check the electrolyte level and top up if needed. Low electrolyte is a leading cause of battery failure, especially in hot climates where evaporation is faster.

In cold or mild climates, a once-a-year check is the minimum. In hot climates, check more frequently. While you're at it, take a look at the battery terminals for corrosion, and clean off any buildup you find. A few minutes of maintenance once a year can add years to the life of your battery.

A quick check today saves a dead battery tomorrow.

Have more battery maintenance questions? Our team is happy to help. Call 905-549-4454 or visit gnbsystems.com to get in touch.

This question comes up constantly, and the honest answer depends on your charger and the battery's current state. Using ...
10/08/2026

This question comes up constantly, and the honest answer depends on your charger and the battery's current state. Using a standard 10-amp automotive charger at 80 degrees Fahrenheit, a fully discharged battery will take approximately 8 to 10 hours to reach a full charge.

At lower temperatures, it will take longer. In colder conditions, chemical reactions inside the battery slow down, which means the charging process becomes less efficient. This is why it's so important to charge promptly and not wait until the dead of winter to deal with a battery you knew was struggling in the fall.

Patience now. Power later.

If your battery is struggling, don't wait. Shop replacements at gnbsystems.com or call GNB at 905-549-4454 before the season gets away from you.

The speed at which you recharge a battery should generally reflect the speed at which it was discharged. A battery that ...
09/30/2026

The speed at which you recharge a battery should generally reflect the speed at which it was discharged. A battery that drained quickly should be recharged at a higher rate. A battery that slowly lost its charge over weeks of sitting unused should be recharged slowly and gently.

The main concern with any recharge is avoiding overheating and overcharging, both of which damage the internal structure of the battery. When in doubt, slower is safer. Charge it as soon as you notice it's low, and don't let a discharged battery sit.

Charge smarter. Last longer.

Have charging questions or need a new charger? GNB has you covered. Visit gnbsystems.com or call 905-549-4454 for expert advice and the right equipment.

09/24/2026

Stop Charging. Seriously.

It might seem harmless to leave your battery on the charger overnight or to keep topping it up, but overcharging is one of the fastest ways to permanently damage a battery. Once a battery reaches full charge, continuing to run current through it generates excess heat, causes the electrolyte to break down, and damages the internal lead plates.

Over time, this shortens the battery's lifespan significantly. Always disconnect the charger as soon as the battery is fully charged, or invest in a smart charger that automatically stops when it detects a full charge.

Full charge means done. Not five more minutes.

GNB carries a range of smart chargers that take the guesswork out of the process. Browse them at gnbsystems.com or call 905-549-4454 to find the right one for your battery type.

A lot of people assume marine batteries are a completely different product. For starting batteries, the difference is ac...
09/16/2026

A lot of people assume marine batteries are a completely different product. For starting batteries, the difference is actually minimal. A marine starting battery is essentially an automotive battery with a handle for easier carrying and marine-style terminals added to handle the connector types used on boats.

The real distinction comes with marine deep cycle batteries, which have thicker plates, lower cranking ability, and significantly more reserve capacity. They're built for the repeated discharge and recharge cycles that come with powering trolling motors, electronics, and onboard accessories throughout a full day on the water.

Same DNA. Different demands.

Shop marine batteries at gnbsystems.com or call our team at 905-549-4454. We'll make sure you get exactly what your boat needs.

Battery group size, which refers to the physical length, width, height, and terminal configuration, is often misundersto...
09/11/2026

Battery group size, which refers to the physical length, width, height, and terminal configuration, is often misunderstood as an indicator of power. It isn't. Group size is purely about dimensions and fitment. The actual performance of a battery comes down to its CCA rating and reserve capacity.

Two batteries from completely different group sizes can have identical power if their CCA ratings match. Modern battery technology also means that a significant amount of power can now be packed into a much smaller case, so don't assume a smaller battery means less capability.

Power is measured in amps, not inches.

Confused by battery specs? Let our experts sort it out. Call 905-549-4454 or use the contact form at gnbsystems.com and we'll help you find what you actually need.

Reserve Capacity is the rating that tells you how many minutes a fully charged battery can sustain a 25-amp load at 80 d...
09/04/2026

Reserve Capacity is the rating that tells you how many minutes a fully charged battery can sustain a 25-amp load at 80 degrees Fahrenheit before dropping below the minimum voltage. In plain terms, it's how long your car can keep running essential systems if the alternator or charging system fails while you're driving.

Think headlights, windshield wipers, the ignition system, and the defroster on a cold, dark night. It's not a feature people think about until they need it, but it can be the difference between making it home and being stranded on the side of the road.

Prepared for the worst. Ready for anything.

Want a battery with strong reserve capacity? Our team can help you find the right fit. Call 905-549-4454 or visit gnbsystems.com today.

GNB's wholesale partner program is designed specifically for registered businesses and organizations. Once approved, par...
08/27/2026

GNB's wholesale partner program is designed specifically for registered businesses and organizations. Once approved, partners get access to wholesale pricing, dedicated account support, fast nationwide shipping, and one of Canada's largest battery inventories. Wholesale pricing is tailored based on the type of business you run.

Emergency and essential service sectors, including ambulance, fire, and police services, receive GNB's deepest discounts. If you need to move batteries at volume, this is the program worth applying for.

Stock more. Spend less. Grow faster.

Apply for a wholesale account at gnbsystems.com/wholesale. You can also call 905-549-4454 or email [email protected] to get the process started.

GNB Systems is one of the only wholesalers in Canada to offer a complete OEM private label battery program. If you're an...
08/20/2026

GNB Systems is one of the only wholesalers in Canada to offer a complete OEM private label battery program. If you're an original equipment manufacturer who needs quality, consistent batteries under your own brand name, GNB can supply them.

This isn't a fringe service. It's a full program designed to meet the quality standards that OEM customers demand, backed by decades of wholesale manufacturing relationships and battery industry expertise.

Your label. Our quality. Zero compromise.

Interested in the OEM private label program? Get in touch at [email protected] or call 905-549-4454 to talk through your requirements with our team.

GNB Systems is built to handle it all. OEM manufacturers rely on GNB for custom private label programs. Dealers and dist...
08/14/2026

GNB Systems is built to handle it all. OEM manufacturers rely on GNB for custom private label programs. Dealers and distributors tap into their wholesale pricing and massive inventory. And everyday Canadians shop directly through gnbsystems.

No matter the order size or the application, GNB brings the same level of knowledge and competitive pricing to every customer. That versatility is what sets them apart from a typical battery retailer.

Built for business. Open to everyone.

Whatever you need, we've got you. Shop online at gnbsystems.com, call 905-549-4454, or email [email protected] to get started.

Address

54 Burland Crescent
Hamilton, ON
L8H7T5

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

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