Surrette/Rolls Battery Big Red- 4V

With high-performance construction offering a non-breakable container, batteries are the solar industry standard for large residential and commercial power systems.

Features of the Rolls “Big Red” 4KS-25PS include:

  • Extra thick plates for long life.
  • Large acid reservoirs.
  • Double poly containers.
  • Covered inter-cell connections.
  • 10 year warranty.


The Rolls ; 4KS-25PS battery uses 2V cells to make large 4V batteries. Dual container construction means each cell has a durable polypropylene inner container. This eliminates breakage due to rough handling and acid leakage and short circuits due to the accumulation of moisture, dirt and other foreign objects.

Volts 4V
Capacity (20hr) 1350 Ah
Capcity (100hr) 1904 Ah
Dimensions 15.75 x 10.6 x 24.75″
Product Weight 315 lbs
Warranty 10 Years