How to Fill Water in Inverter Battery | Best Battery Water

Learn how to fill water in inverter battery and discover the best Inverter battery water for optimal performance, both DM Water and Distilled water.

Here we have with us Exide 850va pure sine wave inverter and Exide company 150 ah tubular battery, this one is the flat tubular battery. Both are placed over the trolley.

How to Fill Water in Inverter Battery

If you pay attention to the picture of the battery, the water level indicator is showing that the water in Exide 150 Ah flat tubular battery is critically low, there is very little water in it, it is up to the plate level only, and in this article, we will show you how to fill water in the inverter battery effectively, we will demonstrate it to you in step by step that how you can fill it in a way that the life duration of your battery will remain long and you will not see the plates inside it getting damaged quickly.

Use of De-Mineralized Water for Inverter Battery

The water that we are going to fill in this Exide Lead Acid Battery, 150 ah tubular battery is DM Water, that is De-Mineralized Water and it is also called the de-Ionized Water. In this water all the minerals and salt ions are removed and it makes the life of your inverter battery very long because there are no salt ions in it due to which the life duration of the plates inside your home inverter battery becomes very long.

By the way, if we use any normal water then probably your home inverter battery would last for maybe 2 or 4 or 5 years, but because we are using DM water, due to this your home inverter battery can may last up to 10 years.

Myths of Water that can be used for Home Inverter Battery

Here’s a straightforward explanation addressing common misconceptions about the type of water you should use for home inverter batteries:

Myth 1: Air Conditioning (AC) Water is Appropriate for Batteries

use of Ac water in home inverter battery

AC Water Characteristics: This water is produced from the condensation of moisture in the air. While it is distilled, meaning it’s free from most large impurities, it may still contain residual contaminants, along with that it does have minerals and salt ions present in it.

Potential Issues: AC water, although relatively pure, might still have trace amounts of dissolved solids and contaminants that are not suitable for battery use.

Battery Impact: Using AC water could introduce impurities into the battery, which can affect its efficiency and reduce its lifespan. and It doesn’t matter if the AC installed is new or the old one.

Ideal Alternative: For maintaining battery health, demineralized or deionized water is recommended, as it is specifically treated to remove all potential minerals, salt ions and contaminants.

Myth 2: Reverse Osmosis (RO) Water is good for Home Inverter Batteries

RO Water for Home Inverter Batteries

RO Water Characteristics: Reverse Osmosis water purifier water is filtered through a membrane to remove many impurities, but it can still have higher levels of Total Dissolved Solids (TDS) compared to pure deionized water.

TDS Levels: RO water may have TDS levels that exceed the optimal range for batteries, which can introduce unwanted ions and minerals.

Battery Impact: High TDS levels can affect the chemical balance within the battery, potentially impairing its performance and longevity.

Ideal Alternative: The water used should have a TDS level ranging from 0 to 10 ppm to ensure it is free from contaminants that could affect battery function.

DM Water: This water is processed to remove nearly all dissolved minerals and ions, resulting in high purity.

Specifications:

  • TDS (Total Dissolved Solids): Should be between 0 to 10 ppm. Low TDS levels prevent the introduction of unwanted substances into the battery.
  • pH Level: Ideally falls between 5.5 to 6.5. Maintaining this pH range helps ensure a stable chemical environment inside the battery.
  • Hardness: Should be within 0 to 50 ppm. Low hardness prevents the formation of scale and sediment that can impact battery performance.

Why These Standards Matter:

  • Avoids Mineral Deposits: Low TDS and hardness levels help prevent the buildup of mineral deposits, which can interfere with battery efficiency.
  • Maintains Electrolyte Balance: Proper water quality supports the correct balance of the electrolyte, essential for optimal battery operation.
  • Reduces Corrosion Risk: Using water that meets these specifications minimizes the chances of internal corrosion and sulfating, common issues in lead-acid batteries.

while AC and RO water might seem convenient, they do not meet the precise requirements needed for optimal battery maintenance. For the best performance and longevity, use demineralized water with the correct TDS, pH, and hardness levels to keep your home inverter battery running efficiently.

exide Distilled Water
  • It has its PH Value, TDS, Conductivity, Hardness Tested OK.
  • It can be used for: Inverter battery, car and truck wiper water, steaming machines such as iron boxes etc., and for laboratory purpose.
  • CAUSION: Do not use it for Drinking and Brewing purposes.
  • Purity: Completely free from minerals, ions, volatile organics, and other impurities.
  • Battery & Inverter Use: Perfect for maintaining home inverter batteries by preventing mineral deposits and ensuring reliable performance.
  • Advantages: Helps in keeping batteries functioning efficiently and extending their operational life.
  • Packaging: Supplied in a 5-liter can of de-mineralized and de-ionized distilled water.

How to Fill Water in Inverter Battery – Step by Step Guide

How to Fill Water in Inverter Battery - Step by Step Guide

Ensure Safety First Before Filling Water in Home Inverter

  • Wear Protective Gear: Put on safety goggles and gloves to safeguard yourself from any potential spills or battery acid.
  • Remove Jewelry: Take off any rings, watches, or other accessories from your hands and wrists to avoid contact with the battery.

Turn Off the Home Inverter Before Filling Water

  • Power Down: Switch off the inverter and disconnect it from its power source to prevent any kind of electrical hazards and ensure safety while working on the home inverter battery.

Inspect the Home Inverter Battery Before Filling Water

  • Assess Condition: Examine the battery for any visible signs of damage or corrosion. If there are significant issues, consult a professional for further assistance.

Choose DM Water in Home Inverter Battery

  • Choose the Right Water: Use demineralized (DM) water or distilled water. Ensure the water has a TDS (Total Dissolved Solids) level between 0 to 10 ppm, a pH between 5.5 to 6.5, and hardness from 0 to 50 ppm.
  • Clean Tools i.e., Bottle or funnel that is need to used for filling purpose. Be fully ensure that any tools or containers used are clean and free of contaminants before taking it to use.

Open Battery Cap/ Water Level Indicator/ Water Topping Vent One by One

Open Battery Cap Water Level Indicator Water Topping Vent One by One
  • Remove Water Level Indicator: If your battery has water level indicators, carefully unscrew each one. If there is a water topping vent, then it is advisable to use it to fill water. but in our demonstration product we have water level indicators only therefore we are opening them for water level filling.
  • Fill Each Cell: For batteries with six separate cells, fill each cell individually. Ensure that all cells are filled properly. If the battery has only one water level indicator but multiple cells, make sure each cell receives the appropriate amount of water.

Start Filling Inverter Battery Water Carefully

Start Filling Inverter Battery Water Carefully
  • Fill Carefully: Using a clean funnel or a battery water filler, add water to each cell slowly and steadily. Aim to fill the water to 2 inches below the top or to the designated fill line.
  • Avoid Overfilling: Check the water level indicator on each cell. The indicator has a marked line showing the proper water level. Fill the water to this marked line, avoiding overflow which can occur during charging and lead to spillage.

Replace the Battery Caps/ Water Level Indicator/ Water Topping Vent

  • Secure Caps: After filling, carefully replace and tighten the water level indicators or caps to ensure they are properly sealed to prevent any sought of leakage.

Clean up the mess

  • Remove Spills: Wipe up any spilled water or electrolyte around the battery to prevent corrosion and reduce the risk of electrical hazards.
  • Proper Disposal: Dispose of any waste materials according to local regulations.

Now Reconnect the Home Inverter Battery and Test

  • Reconnect Inverter: Reattach the battery and turn the inverter back on.
  • Check Operation: Verify that the inverter is functioning correctly and monitor the battery for any signs of irregular behavior.

By following these maintenance steps, you ensure your inverter battery operates efficiently and lasts longer. With Proper care, such as using the right type of water and maintaining correct electrolyte levels, helps prevent problems like sulfation, corrosion, and carbon deposition on home inverter battery terminals. Carbon buildup on the inverter battery terminals can reduce electrical conductivity and impair battery performance. By managing these aspects, you support consistent battery function, reducing the likelihood of sudden failures and avoiding costly repairs or battery and its components replacements.

How to add water in an inverter battery?

To fill water in an inverter battery, use the water topping vent or the water level indicator, first turn off and disconnect the inverter. Check the water level through the indicator to see if it’s low. If it is, carefully add demineralized (DM) water until the indicator shows the proper level. Avoid overfilling, then securely replace the battery cover and reconnect the inverter.

How much water should we fill in a inverter battery?

When adding water to an inverter battery, fill the cells until the water is about 2 inches (approx.) or little more below the top edge of the battery compartment. This ensures there’s enough electrolyte to cover the plates while preventing overflow. If your battery has a water level indicator, add water until it reaches the appropriate mark, typically just above the plates. Avoid overfilling to prevent spills and ensure safe operation.

Can I use RO water in an inverter battery?

No, you should not use RO (reverse osmosis) water in an inverter battery. RO water may still contain minerals and have a higher total dissolved solids (TDS) level, which can affect battery performance and longevity. Always use demineralized water for optimal results.

Can I use borewell water in an inverter battery?

No, you should not use borewell water in an inverter battery. Borewell water often has high hardness, elevated TDS (total dissolved solids), and a non-optimal pH level, which can negatively impact the battery performance and lifespan. Always use distilled or demineralized water for best results.

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