A New Battery with Double the Cycle Life – EGL Series

An EGL battery sits inside Cameron's camper van prior to install.

Published: March 25, 2021

The battery world has developed with only small changes over a span of decades. Lead acid batteries have been around pretty much unchanged since 1859. Lithium batteries have been used commercially since 1991 and would be the latest major breakthrough. While we see small innovations in each of these technologies, we haven’t seen the gap close much between the two battery types… Until now.

The Gap Closes

Fullriver Battery has achieved something that is extremely uncommon in the world of battery manufacturing. We created a new battery technology that increases lead acid performance, life cycles, runtime, and reliability. This better matches the characteristics of lithium batteries. Most importantly, we did it without causing consumers to break the bank to get it. Presenting the Fullriver EGL Series Deep Cycle AGM.

EGL Series batteries installed into a golf cart.

The Fullriver EGL Series is the first lead acid battery that performs like lithium. We used a combination of a new plate design, venting system, new proprietary paste materials, and our military grade construction standards. This allows an EGL battery to maintain a run time within 5% of rated capacity for over 850 cycles. To put into perspective, 850 cycles is more than twice the expected life of most AGM batteries on the market today.

Improved Cycle Life, Improved Warranty

Even the best deep cycle lead acid batteries loses runtime as the battery cycles. Water is lost as the battery vents during charging and paste materials breakdown leading to corrosion. This lowers the available plate surface area able to hold charge. Because of these factors, the acid loses specific gravity as the battery ages. 

The good news is that Fullriver Battery addressed all these issues head on with the EGL Series. In perfect conditions, a premium AGM battery can reach up to 32,000 Ah. A perfectly maintained flooded battery can reach up to 41,000 Ah. The EGL Series can reach up to 93,000 Ah.

300-400 cycles and they’re still at 100%.

Peter Miller – General Manager, Coast Cart

The EGL Series is a beast that continues to provide consistent run times throughout its life. This is why Fullriver is the only battery manufacturer to offer a 4-year warranty of any cycling battery on the market. Don’t just take our word for it. Watch what Peter Miller from Coast Cart had to say about the EGL series below.

The EGL Series represents the first major leap in lead acid battery technology since the introduction of gel electrolyte in the 1930s and the invention of Absorbed Glass Mat (AGM) in 1972. This latest breakthrough is available exclusively through Fullriver Battery.

Featured photo courtesy of Cameron Hotchkiss (@camhootch).

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