SKU: SD-AGM12-075-G24
SunDale Canada AGM 12V 100Ah Battery – Group 31 Length (Low-Profile Case)
The SunDale Canada AGM 12V 100Ah Battery is a high-capacity, maintenance-free AGM deep-cycle battery engineered for Canadian backup power, solar energy storage, RVs, marine systems, and off-grid applications. Built using Absorbent Glass Mat (AGM) technology, it delivers dependable real-world performance with transparent capacity ratings and a low-profile Group-31-length form factor, offering greater installation flexibility than traditional tall Group 31 batteries.
This battery is designed for customers who understand that battery performance is not just about Ah numbers—but about how those Ah are delivered.
Group 31 Length – Low-Profile Design (Fitment Transparency)
This battery uses a Group 31–length case (12.9 inches) with a reduced overall height compared to traditional full-height Group 31 batteries.
Dimensions:
In the Canadian market, many higher-capacity AGM batteries are referred to as “Group 31” based on length and Ah class. This model follows a Group-31-length, low-profile case, making it suitable for installations where full-height Group 31 batteries may not fit. Always verify tray and enclosure dimensions before installation.
True Capacity Matters – It’s Not Just About Ah
Battery capacity numbers can be misleading if the discharge rate is not clearly stated.
How SunDale Canada Rates Capacity (Why It Matters)
The SunDale Canada AGM 12V 100Ah battery is rated at the 10-hour (C10) discharge rate.
This means the battery delivers 100Ah under a relatively high and realistic load, making it highly suitable for:
Many batteries in the market are advertised as “120Ah” or higher, but those figures are often measured at very slow discharge rates such as the 100-hour (C100) rate. While the Ah number appears larger on paper, the usable capacity under real-world loads is often significantly lower.
In practical terms:
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100Ah at C10 = stronger, more usable power
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120Ah at C100 = slower discharge, less usable energy for active loads
SunDale Canada focuses on usable, real-world performance, not inflated Ah numbers that only apply under laboratory conditions.
AGM Technology – Better Than Traditional Flooded Lead-Acid
AGM (Absorbent Glass Mat) batteries are sealed lead-acid batteries where the electrolyte is absorbed into fiberglass mats rather than being free-flowing liquid.
Advantages of AGM over flooded lead-acid batteries:
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Maintenance-free (no watering required)
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Sealed and spill-proof
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Safer for indoor and enclosed installations
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Lower internal resistance for improved performance under load
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Better vibration resistance for RV and mobile use
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Improved cold-weather reliability
AGM batteries are particularly well suited for Canadian climates, where temperature swings, safety, and durability matter.
Temperature & Real-World Performance (Canadian Conditions)
Temperature and discharge rate both have a direct impact on lead-acid battery performance. The SunDale Canada AGM 12V 100Ah Battery is engineered to deliver stable, predictable output across a wide range of Canadian operating conditions.
Operating temperature ranges:
Like all sealed lead-acid batteries, usable capacity decreases as discharge rates increase and temperatures drop. At a 0.2C discharge rate, this AGM battery is designed to retain approximately 50% of its nominal capacity, which is typical and expected behaviour for AGM chemistry under higher load conditions.
Thanks to lower internal resistance, AGM batteries experience reduced voltage sag compared to flooded lead-acid batteries, providing more stable output, particularly in colder environments. Low self-discharge also makes this battery well suited for standby and seasonal storage.
Ideal Applications
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Solar battery banks
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Inverter and UPS backup systems
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RVs, campers, and trailers
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Marine electrical systems
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Off-grid cabins and rural properties
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Emergency backup power
Why Choose SunDale Canada AGM Batteries?
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Canadian-focused brand
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True 100Ah capacity rated at the 10-hour (C10) rate
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Transparent, real-world performance expectations
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Maintenance-free AGM reliability
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Group-31-length, low-profile design for better fitment
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Excellent value compared to premium AGM brands
SunDale Canada AGM batteries are built for customers who want usable power—not inflated numbers.
Why Buy from Solar Super Store (Canada)?
Solar Super Store is a Canadian solar and battery specialist, supporting customers nationwide with expert fitment guidance, system matching, and real-world application knowledge. We help you choose the right battery for your system and climate, not just the highest Ah label.
