Lead Acid Battery
Water Deionizer System
Extend your Battery Life

Battery – Water Deionizer System

Lead acid battery De-ionizer Program

Make your own de-ionized water directly from your tap.  The SY2904 de-ionizer system reduces the high price of buying bottled distilled water and is more convenient as well. Each disposable cartridge purifies about 600 gallons, 2400 litres of water and the purity light will tell you exactly when the cartridge is used up. Why let impurities in your water reduce the life of your industrial forklift battery, when this system is so easy to use and so cost effective?  The unit is pressurized to use directly with Battery Watering Guns.

SY2904_01Impurities reduce the life of your batteries

Water should be free from metallic impurities because they can affect cell voltages and self discharge. Also to be limited are calcium and magnesium compounds found in hard water because these may cause mossing and dendrite growth through the separators.  Note that these impurities are dissolved in the water and cannot be removed by conventional filters.

The old way to avoid impurities was to use distilled water, made by boiling water and condensing the steam. Distilling is energy intensive and costly.

Testing tap water chemically is very complicated. A more practical measure for purity is resistivity. The electrical resistance of water is very sensitive to the amount of dissolved solids it contains. Resistivity can be tested instantaneously with a low-cost meter.

Cheap insurance for an expensive risk!

The way to avoid impurities is to use treated water which is perfect for watering batteries. A typical cell will only consume about one gallon/4 litres  each year. If a gallon of  water costs 50 cents per cell, it will be just 50 cents per year. Comparing this figure to the purchase price of a cell shows that the cost can be justified if the cell lasts just a few weeks longer in service over a lifetime of 5 years.

Features & Benefits

Professional quality units: Not just a filter, which only removes particles, but a real ion-exchange medium which electrostatically removes dissolved impurities. Purity is comparable with distilled water and ideal for batteries.

  • Large capacity: The cartridge is over 2 feet, 60cms, long and rated for 600 gallons, 2400 litres, of pure water. Actual output varies with tap water quality.
  • Purity light: This “magic eye” monitors the conductivity of the output water continuously and signals when it is time to change the cartridge. There is no better purity control available at any price.
  • Pressurized system: Unlike some lab type systems, the Philadelphia Scientific Deionizer operates at full line pressure. This makes it possible to dispense pressurized, pure water directly from the unit.
  • Ready to use: The system comes with a mounting plate, one cartridge, Purity Light, hose hanger, quick connects, input and output hoses. With the optional Watering Gun, you can fill a battery directly from the unit.
  • Easy installation: Setting up wall mounted system takes 3 simple steps. Attach the mounting plate to wall with 2 bolts. Connect input hose to any tap with standard hose fittings. Connect Purity Light to the output assembly.
  • Easy cartridge replacement: Snapping in a new cartridge takes seconds and needs no tools. The exhausted cartridge is non toxic and can be disposed of without difficulty.


Water de-ionizer system: SY2904
Replacement Cartridge: SY2905


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