Sir i need your immediate attention and help 🙏🙏🙏 1. My battery is fully charged 12.6V. i tested the individual cell voltage, all showing 2.1V. All ok including the inverter. It stays at 12.6V even no load is connected for straight 3 days or more. 2. However, when the inverter is ON, and 3 normal incandescent tubelights (Rs 40 each of about 11 w) are used, the battery lasts only for about maximum 3 hrs. The lesser bulbs is used, the more hour the battery lasts. 3. As soon as battery is below 10.4V, the inverter switch off automatically and the voltage of the battery regains to 12 to 12.5V very quickly. Why is this regaining voltage taking place? Is not the battery should be maintaining the previous voltage of 10.4V? 4. Now, I'm really confused whether the battery is worn out or not. But individual voltage readings of cells are at 2.1 when fully charged which means all cells are good. 5. Even all voltage readings are good, why is the back up so poor only about 3 hrs only?? 6. How do I check my battery is getting bad or worn out?
