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A. The S2-280GEL has a rated capacity of 315Ah at the C20 discharge rate and 280Ah at the C10 discharge rate. The C20 figure is the standard headline capacity used for stationary deep-cycle applications.
A. The S2-280GEL is a 2V monobloc cell, intended for use in series strings to construct 12V, 24V, 48V, or higher-voltage battery banks as required by the system design.
A. The OPzV range uses immobilised gel electrolyte combined with tubular positive plate technology. The positive grid is die-cast and the gel formula is proprietary to Rolls Battery Engineering. The battery is manufactured to DIN standards and is fully valve-regulated and sealed.
A. Terminal polarity should be confirmed directly from the label on the battery prior to installation. Rolls Battery Engineering advises checking the product label rather than relying solely on printed documentation, as label confirmation is the definitive reference for this SKU.
A. Because the S2-280GEL is a sealed, valve-regulated battery, it does not emit acid mist under normal operating conditions and does not require the forced ventilation mandated for flooded cells. However, basic ventilation best practice for battery enclosures should still be observed and local installation regulations consulted.
A. The range spans ten variants: S2-224GEL, S2-280GEL (this product), S2-336GEL, S2-405GEL, S2-486GEL, S2-567GEL, S2-690GEL, S2-920GEL, S2-1150GEL, S2-1380GEL, and S2-1620GEL. All are 2V cells, enabling large-capacity strings to be assembled at the same nominal cell voltage.
A. The S2-280GEL is covered by a 3-year warranty from Rolls Battery Engineering against manufacturing defects. Warranty claims should be raised through PartsForMachines; retain proof of purchase and installation records as these may be required to support a claim.
A. The S2-280GEL is dispatched on a standard parcel service with delivery in 1–3 working days to UK mainland addresses. A 30-day returns policy applies. For remote mainland postcodes, islands, or offshore destinations, delivery surcharges or extended lead times may apply – contact PartsForMachines prior to ordering to confirm.
A. Yes. The OPzV GEL construction — tubular positive plates, immobilised gel electrolyte, and valve-regulated sealed design — is well suited to off-grid and grid-tied solar storage, where batteries experience regular deep discharge and recharge cycles. Always verify compatibility with your charge controller's gel battery profile.
A. The battery measures 124mm (length) × 206mm (width) × 382mm (height including terminal) and weighs 24kg. These dimensions should be verified against your battery enclosure or cabinet specifications before ordering.
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