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Surrette / Rolls S12-128 AGM Battery

  • Trusted name in deep-cycle batteries for over 50 years
  • Long cycle life
  • Tick lead plates

Product Information

Model Part No. Voltage Amp Hours Type Warranty Price
Surrette / Rolls S12-128 AGM Battery994946612VDC128AhAGM (Absorbent Glass Mat)5-Year Warranty


The Rolls Surrette S12-128AGM (S12128AGM) Deep Cycle Battery features a high cycle life without the need for maintenance. The AGM technology (Absorbed Glass-Mat) keeps the electrolyte (Acid) contained in the glass mats allowing the S12-128AGM (S12128AGM) to not expel any liquids even under severe overcharge. The S12-128AGM (S12128AGM) is a non-hazardous battery resulting in lower shipping costs and can also be shipped via air. AGM batteries have an extremely low internal resistance giving them a very low selfdischarge rate.

Rolls Surrette takes the Group 31 size battery to even higher levels by improving the capacity and service life. This battery is heavier than the typical Group 31 type, and is unsurpassed in reliability. The Rolls Surrette S12-128AGM (S12128AGM) is a direct AGM replacement for any Group 31 lead acid batteries. The S12-128AGM (S12128AGM) is a 12 volt battery with a capacity of 128 Amp Hrs. @ 100 Hr. rate or 115 Amp Hrs @ 20 Hr. rate. The terminals are brass auto posts with top threaded inserts.

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Features & Attributes

  • Warranty is 5 years (First 24 months free replacement, next 36 months prorated).
  • For a single string of 128 Amp Hrs. @100 Hr rate, you will need 1 of the S12-128AGM (S12128AGM) for a 12-volt system, 2 of the S12-128AGM (S12128AGM) for a 24-volt system and 4 of the S12-128AGM (S12128AGM) for a 48-volt system.
  • Each additional string will multiply the Amp Hrs.
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Surrette / Rolls S12-128 AGM Battery

Spec. Sheet
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About Surrette / Rolls

One Mean Battery

Established in 1935 in Salem, Massachusetts, The Rolls Surrette Battery Company has been a trusted name in deep cycle batteries for well over 50 years. The company relocated to Springhill, Nova Scotia, Canada, in 1959 where it is the nation's only remaining independent battery manufacturer. Their unparalleled quality and workmanship have earned the manufacturer a solid reputation in the battery industry, as one of the most reliable batteries on the market. These batteries are known for their high-cycle life, featuring the thickest plates in the industry, a large liquid reserve, and a durable double-wall construction. Rolls Surrette stands behind their batteries with some of the longest warranties in the industry, up to 10 years on certain models. The average life expectancy for these batteries is known to be in the 15 to 20 year range.

Environmentally-Conscious Engineering

Rolls Surrette batteries are known for their rugged, dual-container construction. Each cell is encapsulated in its own inner container made with a high grade, polypropylene shell and its own heat bonded cover. The cells are then further protected with a second, high-density, polyethylene outer container. These safety measures allow the battery to still be operable should the outer container break, eliminating the hazard of a toxic sulfuric acid spill.

Enveloped Positive Plates

Rolls Surrette cells feature double insulated positive plates. The first layer utilizes a thick woven glass mat, which then is sealed in a non-destructible micro porous polyethylene envelope. The protective envelope reduces the possibility of separator misalignment, cracked separators, or shorting at the bottom or sides. This also allows the sediment chamber to be eliminated, creating more space for liquid at the top of the battery, thus lengthening periods between watering.


  • Wholesale Solar has multiple shipping locations for Surrette batteries across the US. Call us to get an exact residential or commercial shipping quote.
  • Non-Breakable dual container construction which prevents acid leakage
  • Thick lead plates with the highest density of active material which provides unsurpassed cycling service
  • Increased liquid reserve which means less maintenance
  • 3000+ cycles to 50% depth of discharge, 2000+ cycles to 80% depth of discharge
  • Rolls Surrette Manual
  • Rolls Surrette Warranty
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