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Q 1. What is the nominal voltage and capacity of the Rolls S2-405GEL?

A. The S2-405GEL is a 2V valve-regulated gel battery with a rated capacity of 459Ah at the C20 rate and 405Ah at the C10 rate.

Q 2. What technology does the Rolls OPzV GEL range use?

A. The Rolls OPzV GEL range uses immobilised gel electrolyte combined with tubular plate technology. The positive grid is die-cast to DIN standards, and a patent formula gel compound is used as the electrolyte, eliminating the need for liquid electrolyte maintenance.

Q 3. What polarity orientation does the S2-405GEL use?

A. Polarity should be verified against the product label prior to installation. Polarity is not pre-confirmed in the published specification data for this SKU.

Q 4. Is the Rolls S2-405GEL suitable for renewable energy or off-grid storage systems?

A. Yes. The S2-405GEL is a deep-cycle OPzV GEL cell designed for stationary applications including renewable energy storage, UPS systems, and industrial standby use, where sustained discharge cycles and long service life are required.

Q 5. Can the S2-405GEL be used in series to build higher-voltage battery banks?

A. Yes. As a 2V monobloc cell, the S2-405GEL is designed to be connected in series with other cells of the same capacity to create 12V, 24V, 48V, or other higher-voltage battery banks as required by the installation.

Q 6. Are there other capacity options available in the Rolls OPzV GEL range?

A. Yes. The range includes the S2-224GEL, S2-280GEL, S2-336GEL, S2-486GEL, S2-567GEL, S2-690GEL, S2-920GEL, S2-1150GEL, S2-1380GEL, and S2-1620GEL, all at 2V, allowing system designers to select the appropriate capacity.

Q 7. Does the Rolls S2-405GEL require water topping or electrolyte maintenance?

A. No. As a valve-regulated gel battery, the S2-405GEL uses an immobilised gel electrolyte and is maintenance-free with respect to electrolyte topping. The sealed construction also eliminates risks associated with electrolyte spillage.

Q 8. What warranty is provided with the Rolls S2-405GEL?

A. The S2-405GEL is supplied with a 3-year warranty from Rolls Battery Engineering.

Q 9. How is the Rolls S2-405GEL delivered and what is the returns policy?

A. The S2-405GEL is dispatched on a pallet and typically arrives within 3–5 working days to UK mainland addresses. Contact PartsForMachines directly for a delivery quote. A 30-day returns policy applies.

Q 10. What are the physical dimensions and weight of the S2-405GEL?

A. The battery measures 124mm (length) × 206mm (width) × 498mm (height including terminal) and weighs 31kg.

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