Why use distilled water for inverter battery?

Maintenance of inverter battery

Inverter battery has internal plates that are covered with water, which makes it work. During operation, water goes through chemical reaction and breaks down into hydrogen and oxygen gas. These gases evaporate from battery and with time water level drops. This way plates remain no longer covered with water. In order to keep the battery perform efficiently, it is important to top it up with distilled water.

Why use distilled water for inverter battery?

Water from faucets, wells and other natural resources usually has dissolved minerals, salts and impurities. These minerals and salts fill the pores and form a layer on the plates, affecting the normal electro-chemical reaction that generates power in the battery. Presence of such chemical ions may drastically reduce the lifespan of the battery. Filtering tap water merely removes the suspended matter but not the dissolved minerals and non-ionic compounds. Advanced filters like ion-exchange or activated carbon filters remove most of the ionic and larger non-ionic compounds leaving smaller molecules in solution.

Distilled water contains no dissolved minerals, salts, organic and in-organic compounds that may harm the battery. Therefore battery manufacturers recommend distilled water for better performance and longer battery life.

Where to buy distilled water for the batteries?

You could check your local markets or order distilled water on Amazon starting from Rs 150! Click here to order distilled water Amazon

 

Can RO water be used in battery?

Reverse osmosis is a different process from distillation. RO water is also considered mineral-free like distilled water. The process of reverse osmosis removes all kinds of unwanted impurities, salts and ions from water, making it fit for human consumption. Regular service and maintenance of RO keeps the hardness, pH and TDS under permissible limit.

READ ALSO:  Why do inverter batteries die earlier than expected?

Many inverter service centers use and suggest RO water for the battery top up, but they keep a check on TDS level, hardness and pH of water used to ensure that battery function is not hampered. But it is always recommended to use distilled water for your inverter batteries.

Too late to realize the impact of using tap water in batteries? Don’t worry, below are some great batteries available on Amazon through good sellers:

  1. Exide 150AH New InstaBrite Inverter UPS Battery – 36 Month Warranty
  2. Amaron Inverter 150AH Tall Tubular Battery

For more ideas on inverter battery maintenance, read 8 useful tips to take care of your inverter battery

(Cover Picture Source: www.wikihow.com)

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8 Comments

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      I have never shut down my inverter for distilled water filling. However from a safety perspective, it’s always recommended to pull transmission side cable and switch off Inverter/UPS

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    Inverter batteries has internal plates that are covered with water, which makes it work. During operation, water goes through chemical reaction and breaks down into hydrogen and oxygen gas. These gases evaporate from battery and with time water level drops. This way plates remain no longer covered with water. In order to keep the battery perform efficiently, it is important to top it up with distilled water. Check the water level regularly and add distilled water only when necessary. To know the water level in the inverter battery, we can use a float indicator to find the water level. Fix the float to the inverter battery at its allocated space before connecting the battery to the UPS. Never add simple water to your battery as it contains minerals that will reduce the battery capacity and increase its self discharge rate. Neither should you add acid. Use only distilled or de-ionized water to achieve the recommended electrolyte levels.

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    Inverter battery is essential needs for home,because without power backup we can’t spend more time in home. Time to time we try to change water in inverter battery for long life performance.

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