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Great Northern Battery Systems
Canada’s Battery SupplierLocated in Hamilton, Ontario Great Northern Battery Systems (GNB Systems) is an international battery wholesale supplier providing batteries of all types to OEM, Dealers, Distributors and direct to the general public. With 79 years experience in the battery industry, inventory & selection that is unparalleled and knowledgeable and helpful staff, GNB Systems is your best choice for high quality batteries at competitive prices. Simply put, no one else has the selection and knowledge offered by GNB Systems.
We stock a full selection of automotive, marine & commercial batteries, motorcycle, snowmobile and power sport batteries, along with deep cycle & AGM batteries. Need batteries for your UPS systems, we stock a wide range of Data Safe products, SLA, VRLA and rechargeable batteries.
For our dealers, we are pleased to offer a complete reseller program designed to give you the benefit of drawing from our huge battery selection of inventory at very competitive prices.
Great Northern Battery is one of the only wholesalers to offer a complete OEM private branded battery program providing Original Equipment Manufacturers with the quality products they demand.
Powering Your Choice with Confidence
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Built for Every Industry
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Sustainable Solutions
Sustainable Battery Recycling for a Greener Future
At Great Northern Battery Systems, we believe in protecting the planet while providing reliable power solutions.
Our battery recycling program helps reduce environmental impact by responsibly recycling old batteries, ensuring they don’t end up in landfills.
Real Feedback. Real Performance.
Frequently Asked Battery Questions
An AGM battery is a type of sealed lead-acid battery where the electrolyte is absorbed into a fiberglass mat (AGM = Absorbent Glass Mat). That design holds the acid in place, which makes AGM batteries spill-resistant, low-maintenance, and highly vibration-resistant—a big reason they’re common in modern vehicles, marine, RV, powersports, and backup power applications.
When people ask “what does AGM battery mean?”, it simply means the battery uses that glass-mat separator to immobilize the electrolyte. This allows AGM batteries to deliver strong starting power, recharge efficiently, and handle deeper cycling better than many traditional flooded lead-acid batteries (depending on the use case).
How long AGM batteries last depends on heat, charging system health, and how deeply they’re discharged. In typical automotive use, many AGM batteries land in the 3–6 year range, while deep-cycle applications vary widely based on cycle depth and charging habits.
A deep-cycle battery is a battery built to deliver steady power over a longer period and to be recharged and discharged repeatedly—unlike a starting (cranking) battery, which is designed for short bursts of power to start an engine. In plain terms, the deep cycle battery meaning is “endurance power”: it’s meant to run loads like electronics, accessories, and equipment for hours, not seconds.
What is a deep-cycle battery used for?
Deep-cycle batteries are commonly used in marine, RV, solar/off-grid, and golf cart applications—anywhere you need consistent output and frequent cycling.
Deep cycle vs. starting battery (quick difference):
Starting battery: high burst power for ignition; doesn’t like deep discharges.
Deep-cycle battery: continuous power + repeated cycling; designed to handle deeper discharges with less damage.
How long do deep-cycle batteries last?
Lifespan depends heavily on depth of discharge, charging quality, and heat—generally, the deeper you discharge it each cycle, the fewer total cycles you’ll get.
If you’re searching where to recycle old batteries, the simplest option (especially in Hamilton, Ontario) is to use Great Northern Battery Systems’ battery recycling program. Your batteries will be handled responsibly and kept out of landfills.
54 Burland Crescent, Hamilton, ON L8H 7T5
Phone: 905-549-4454
(Hours are listed on GNB’s Contact page. Please check before you drive over.)
What batteries can I drop off?
GNB’s recycling program is for automotive and larger vehicle-related batteries, such as car, truck, and deep-cycle batteries.
If you’re unsure whether your battery qualifies, call GNB with the battery type and any label details (voltage, group size).
Safety steps before you transport batteries (important)
To reduce short-circuit/fire risk during transport:
-Tape the terminals (especially 9V and any battery with exposed contacts).
-Bag or separate loose batteries so they can’t touch each other.
Not sure what type of battery you have (AGM vs. deep-cycle vs. automotive)?
Use GNB’s Contact Us form and include:
– what it’s for (car, RV, marine, UPS, etc.)
– year/make/model (if applicable)
– any labels on the battery (voltage, group size)
To apply for a GNB wholesale account, go to the Wholesale page and complete the Wholesale Partner application form. Once submitted, GNB reviews your details and, if approved, you’ll receive access to wholesale pricing, account support, and order fulfillment.
Who can apply?
Only registered businesses and organizations are eligible to apply for wholesale pricing access.