• Avoiding Sulfation

    . . . Rolls recommends a 3-phase charge cycle (Bulk, Absorption & Float) and a charge rate equal to 10% of the C20 (20 hr AH rating) of the battery bank. . . Battery Salvation . . . The battery should be charged from an outside source at 2.6 to…More »
  • Causes of Sulfation

    CAUSES Most cases of sulfation are caused by: UNDER CHARGING OR NEGLECT OF EQUALISING CHARGE When a cycled battery is charged repeatedly at low rates but not fully charged, the acid is not effectively driven out of the plates, particularly the lower…More »
  • Deep Discharge

    From Irreversible Changes of Active Material Caused by Deep Discharge Deep discharge of batteries often leads to mechanical stresses in the plates, which leads to shedding, poor conductivity, and a diminished lifetime of the system.…More »
  • Deficit Cycling

    This is a copy of info at Deficit Cycling Modified on: Tue, 26 Aug, 2014 at 4:22 PM Rolls batteries have been designed to provide many cycles and therefore long life. This…More »
  • Specific Gravity as an indicator

    The SG quantifies the amount of Sulfuric Acid (H<sub>2</sub>SO<sub>4)</sub> to the water (H<sub>2</sub>O) in the battery electrolyte. Water has an SG of 1 so anything higher indicates some solvent. The next time your…More »
  • Treatment

    Thorough and careful attention to the following steps often will restore a sulphated battery to good operation condition. Clean battery; Bring electrolyte level to proper height by adding water; Put battery on charge at the prescribed finishing rate…More »