Inverter batteries are an essential component of backup power systems. They are rechargeable batteries that store electricity, which can be used during power outages or when there is no access to the grid. These batteries come in different capacities and types, such as lead-acid, lithium-ion, and gel batteries. The choice of battery depends on factors such as budget, power requirements, and expected lifespan. Proper maintenance is crucial to ensure optimal performance and longevity of the battery. Regular inspection, cleaning, and timely replacement of damaged or worn-out batteries can help ensure uninterrupted power supply.