The charge level of the battery drops as it is utilized for fulfilling the load demand just as in the case of a storage water tank where the water level drops when it is utilized.Īs soon as the charge level just like that of water level drops it is required to restore the charge continuously to avoid any disruption in the operation of the system. Just like refilling a storage water tank, a battery is also required to restore the charge in a standalone solar PV system.
Related Post: Why Battery Rated in Ah (Ampere hour), Not in VA. So, depending on the application a particular type of battery is chosen. The batteries used in smartphones, smartwatches, laptops, and torches, etc are of low capacity whereas batteries used in electric vehicles, motors, PV systems, and other renewable energy systems are of high capacity. There are rechargeable and non-rechargeable batteries. In the market, there are different types of batteries available which come in various shapes, sizes, voltage ratings, storage capacities, charge-discharging cycles, shell life, and technologies. It is due to this difference in the terminals that drive the current when it is connected to an electrical or electronic appliance. There is a voltage difference in these two terminals when the battery is charged. In battery instead of water the charge is stored and depending on the energy required the charge storage capacity (size of the battery) is determined.Ī battery is a two-terminal device, one is the positive terminal and the other is the negative terminal. The utilization of the battery is similar to that of the water storage tank, turn the tap on when water is required and turn it off when water is not required, and restore the water when the tank is empty. Electrical energy is stored in a form of chemical energy and when required this chemical energy is converted into electrical energy to fulfill the application’s energy demand. #Used batteries portable
The charge stored in the battery is utilized to supply the required power to those portable electronic and electrical devices whenever it is necessary. So, to provide such a portable DC supply a device having electrical energy stored known as the battery is used. The conventional AC supply available cannot be used to run such devices hence we need a portable DC supply. Our portable electronic devices like smartphones, smartwatches, laptops, torches, and power banks, etc all these things require some portable supply of energy to use these devices. Charging and Discharging of the Battery.
Detecting Chemical Faults in the Battery:. Detecting Physical Faults in the Battery:. Detecting Electrical Faults in the Battery:. Installation and Commissioning of Battery Bank. State of Charge (SOC) and Depth of Discharge (DOD). Charge Stored Capacity (Coulomb or Ampere-hour “Ah”). 
Terminologies for Battery Terminal Voltage. Open Circuit Voltage and Terminal Voltage. Thus, here in this article, we are going to see some important practical and technical details of batteries as well as their utilization and maintenance in the solar photovoltaic system. Non-optimal use of batteries can result in the reduced life of such a significant device in the system. With the advance in technology and the increase in the market, the cost of solar PV modules is decreasing whereas the cost of batteries is becoming a significant part of a standalone system. It is because in the absence of sunlight the solar PV system won’t be able to store and deliver energy to the load.ĭuring non-sunshine hours we need this stored energy in a standalone system to run our appliances, whereas in a grid-tied system if the grid is operational then the required amount of energy can be provided by the grid in case of low or even non-sunshine hours. In a standalone photovoltaic system battery as an electrical energy storage medium plays a very significant and crucial part. Batteries: Fundamentals, Applications and Maintenance in Solar PV (Photovoltaic) Systems
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