Rolls Series 5000 4V 1148Ah Dual Container FLA Battery

The Rolls 4 KS 21P Series 5000 4KS21P is a 4V flooded lead acid deep-cycle battery built for demanding off-grid and renewable energy systems. Rated at 1148 Ah on the 20-hour rate with 2 cells and 21 plates per cell, it features a rugged dual-container design, a generous 3.75″ electrolyte reserve, and a wide -40°F to 104°F operating range for reliable performance in Canadian climates.

Key Features:

• Flooded lead acid, 4V, 1148 Ah at 20-hour rate
• 1481 Ah at 100-hour rate, 919 Ah at 5-hour rate
• 2 cells, 21 plates per cell
• Dual container: polypropylene inner, HDPE outer
• 3.75″ electrolyte reserve for longer service life
• RC 2756 min at 25A, 919 min at 75A
• CCA 2754 at 0°F, MCA 3443 at 32°F
• Charge 2.45-2.5 V/cell, float 2.25 V/cell
• Flag terminals, 5/16″-18, 19″ 4/0 interconnects
• 15.75 x 9.38 x 24.75 in, 267 lbs, 5-year warranty

Ideal for large off-grid solar, backup power, and renewable energy banks requiring deep-cycle reliability. The vented design with integral flame arrestor caps and molded handles suits serviceable installations, and it integrates into 12V, 24V, or 48V configurations wired in series. Order the 4 KS 21P from Circuit Solar, in stock in Canada and shipped from Red Deer, AB.