Frequently Asked Questions?

Inverters and UPS systems both provide power from batteries in the absence of AC power. A UPS typically includes the battery and battery charger in one standalone unit. Batteries for an inverter are generally user-supplied.

Depending on the inverter, it will respond to a power outage in 4.2 to 16.7 milliseconds. A UPS responds in a fraction of that time, making the UPS a better choice for applications that must remain powered, such as computer networking equipment.

Inverter is a device which is used for converting the DC electricity from batteries to AC electricity. This is because most of the household appliances along with other electrical equipment and fixtures purely depend on AC electricity.

Yes, it is generally safe to use a sine wave inverter. A sine wave inverter is designed to convert direct current (DC) power from a battery or other DC source into alternating current (AC) power that resembles the smooth and continuous sine wave pattern of utility power.

This type of inverter is commonly used to power electronic devices, appliances, and other sensitive equipment. Modern sine wave inverters often include built-in protection mechanisms to safeguard against various issues. These may include overload protection, short-circuit protection, over-temperature protection, and low-voltage shutdown. These safety features help prevent damage to the inverter and connected devices.

Proper installation is essential for the safe and efficient operation of your home inverter. Follow these guidelines:

  • Choose a suitable location: Install the inverter in a cool, dry, and wellventilated area, away from direct sunlight and water sources.
  • Ensure easy accessibility: Place the inverter in an area that allows easy access for maintenance and repairs.
  • Use a dedicated electrical circuit: Connect the inverter to a dedicated electrical circuit to prevent overloading and ensure stable power supply.
  • Follow manufacturer instructions: Adhere to the manufacturer’s guidelines for installation, wiring, and grounding to ensure the safe and efficient operation of your inverter.
  • Hire a professional: Engage a qualified technician to install your home inverter to ensure proper installation and adherence to safety standards.

The capacity of the inverter determines the number of appliances it can power. If you select an inverter with sufficient capacity, it can potentially power your entire house. However, it is more common to use home inverters to power essential appliances during power outages.

Yes, you can use solar panels with your home inverter to harness renewable energy and reduce your dependence on grid power. You will need a solar-Charge Controller to connect your solar panels to the system. This type of inverter setup can efficiently manage power input from both the solar panels and the grid to charge the battery, ensuring optimal use of solar energy.

The backup time provided by a home inverter depends on the battery capacity and the power consumption of the connected appliances. Larger batteries can provide longer backup times, while using fewer or lower-wattage appliances will extend the backup duration.

Batteries have a limited lifespan and will eventually need replacement. Some signs thatit’s time to replace your inverter battery include reduced backup time, frequent low battery warnings, and swelling or leakage.

To avoid drastically shortening of the life span on your lead-acid batteries, In normal use, you should ideally hold over 70-75 percent of the battery capacity. Gel and AGM batteries are more durable.

Maintenance-free lead acid batteries are sealed lead acid batteries which do not require liquid replenishment and maintenance. These batteries are designed so that the gas and electrolyte cannot leak and their automatic regulation solution system keeps the electrolyte in the battery at the correct level.

The ideal ambient temperature for batteries is in the range of 20-25 degrees Celsius. Within this temperature range, the battery has the highest electrochemical reaction rate and the best battery performance. Therefore, special attention needs to be paid to the conditions of use and storage of batteries in hot or cold weather

In a word, “don’t."

Many of our customers who currently have a battery bank later desire to expand their capacity or in some cases replace batteries that have failed for one reason or another.

Mixing different batteries is never a good idea. First, mixing batteries which are different in type, size, brand or voltage will not even work. Worse still, it can lead to battery bank failure.

The easiest and best way to reduce charging time is by ensuring that rise in battery temperature is controlled and in fact reduced by appropriate cooling. The charge current can then be increased with a continuous monitoring mechanism in place to note the temperature throughout the period of charging.

The amount of water to be added to a flooded lead acid battery depends on the qty of water component of electrolyte which has evaporated from a particular cell.

In cases where batteries are overcharged and heated with a resultant loss of electrolyte the water needs to be added to ensure that electrolyte concentration is within the desired range and is back to original level.

Under no circumstances should water be added to such an extent that it overflows from the vent hole of the vent plug out of the cell. Excessive filling of this nature reduces the concentration of electrolyte in those cells where such over filling has been done.

Lead acid batteries contain electrolyte which is sulphuric acid. This is corrosive in nature.

This corrosive acid sometimes leaches out between the cover and terminal insert through its gap. The gap is mostly due to a possible moulding defect at the time of manufacture of the plastic cover.

The cable connected to the battery is of copper and sometimes the copper of the cable is exposed. This copper reacts with sulphuric acid to form copper sulphate and is seen as a layer of corrosion at the terminals.

The terminals used to connect the copper cables to the battery are usually of brass and this gets damaged due to sulphuric acid damaging the brass and is visible as corrosion.

Loose contact at the terminal connection leads to sparking and heating. This in turn leads to melting of lead terminals and reduction of size of lead terminal and more loose contact. Finally, there is corrosion due to this physical deformation.

The reason for drying of water in a battery connected to inverter may be any one or a combination of the following reasons:

  • Battery is at end of life. Battery needs to be replaced.
  • The charger is faulty and delivering a higher current than required. The charger current needs to be adjusted to a lower value by repairs or replacement of charger part of the inverter.
  • The battery is not matched to inverter's charger. You may have been given a smaller capacity battery keeping only voltage as required. Check the recommended battery capacity which has to be connected to the inverter.
  • The battery may have been topped up using acid instead of water at some point of time due to which it is heavily sulfated. If acid has been added there is a possibility that specific gravity is high and the plates are not able to release sulphate when charged resulting in temperature going up. Contact battery manufacturer and try to get the needful done.
  • You may have kept the battery near a source of heat like near a generator engine or steam generator or near some furnace. Move battery and inverter to a cooler place.
  • The battery and inverter may be in a place having poor ventilation. Arrange to provide better ventilation.

I presume that you are asking for tricks to enhance the life of a lead acid inverter battery and shall offer a few guaranteed tips to you.

  1. Ensure that the level of electrolyte is maintained uniformly in all cells by regular and periodic topping up using distilled or demineralised battery grade water.
  2. Never top up with acid.
  3. Apply petroleum jelly to avoid corrosion at the terminals after cleaning the battery terminals. This helps avoid sulphate build up at the contact points and ensures that there is no voltage drop to the load.
  4. Ensure periodic check up of inverter or UPS to verify that the charger is functioning in a manner suitable for proper upkeep of the battery and is neither overcharging or under charging of the battery.
  5. Keep the battery in a cool place away from sources of heat like furnaces or boilers. You may shield the battery from dusty and dirty environment & do not expose it to direct sunlight if possible.
  6. Ensure that the vent holes of the vent plugs are clean enough to allow hydrogen gas to escape as and when the battery has to vent out these gases. If possible remove vent plugs and clean it as and when required in normal water.
  7. Check the output wires for tightness of connection since loose contacts can cause sparking in addition to voltage drops during discharge and consequent inefficient operation of inverter.

All these are not very difficult to carry out and only water topping up may need to be done once in a month or once in 3 months depending on usage. The other maintenance activities are need based and may be required to be done once a year.

Series connection

A series connection is used to increase voltage, while keeping capacity at the same level. Two serially connected 12 V/120 Ah batteries make a combined battery set of 24 V/120 Ah. In a series connection, the positive pole of one battery is connected to the negative pole of the other, with the poles that remain at the ends being connected to the system. Batteries with different capacities should never be linked in series.

Parallel connection

Parallel connection is used when you need to increase your capacity. The positive leads are connected together, as are the negative leads. The cabling from the battery to the system should be: Positive from battery 1 and negative from battery 2 (or the last in the parallel connection).

Series/parallel connection

If you need a 24 V battery set with a higher capacity, you can combine series and parallel connections. The cables from the battery to the system must be crossed: Positive from battery 1 and negative from battery 2 (or the last in the parallel connection)

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