Having an inverter at home has become commonplace, especially during the hot and rainy seasons when power outages are frequent. However, have you ever considered that maintaining your inverter’s battery is just as crucial? Most people are unaware that distilled water must be added to an inverter battery. Neglecting this can lead to premature battery failure and costly replacements. Here’s why water is essential, how often to add it, and what precautions to take.
Inverter batteries use lead-acid cells that utilize an electrolyte (a liquid acid plus distilled water) during charging and discharging. As the battery is used and charged, water gradually evaporates. If water isn’t added periodically, the electrolyte level decreases, impacting performance.
Adding water is necessary to maintain the electrolyte level, ensuring the battery functions correctly. Distilled water balances this level. It extends the battery’s life, preventing overheating and damage. Dry batteries can overheat and potentially ignite or explode. Proper water levels also ensure full charging efficiency, providing good backup power.
Tap water is unsuitable; it contains minerals, salts, and iron, which can damage the internal plates, causing early failure and reduced backup time.
Check the battery monthly. Add enough distilled water to submerge the plates, avoiding overfilling to prevent acid leakage.









