It is important to know about the types of batteries available in the market because, with an inverter, you have to buy an external battery. Not all inverters are compatible with every type of battery. Lead Acid Battery: It is the most common type of battery used, and it has the capability to generate a large amount of power. However, there is a need for regular maintenance such as the distilled water needs to be recycled quite frequently. Not just that, it needs to be placed in an area with good ventilation option. It gets heated up as the load increases, and some give out harmful gases while charging and discharging. It is a commercial battery for inverters as they are economical and lightweight. The safety measures are not always up to the mark, and the lifespan is around 5 years. Tubular Battery: This is the most efficient inverter battery, and they have a longer lifespan which could be around 10 years. The maintenance is less than lead-acid batteries, but the design is quite complex. Due to a longer lifetime, they are costlier than lead-acid batteries, and if you have the budget, you should go for it. Maintenance-Free Battery: This is a relatively new type of battery where there is no headache of maintenance at all, and they are completely sealed. There is no need for topping up of electrolyte and distilled water. They are far safer than any other battery type as no human intervention is required. However, there are costlier, and the lifespan is lesser.