Each cell has its pros and cons. But the biggest reason is the weight of the battery. Lead Acid batteries are cheaper and generally used in automobiles but the weight of a 12V 100AH battery is 30 kg for 12V 100AH. But luckily this battery comes assembled in an automobile battery shop.

As compared to a lead-acid battery, Lithium batteries are better than lead-acid batteries. LiFePO4 cells offer a reasonable capacity/weight ratio. 100 AH cells are available by connecting 3 cells in series in one module and connecting a battery management system designed for Lithium-iron batteries to see the voltage and temperature of a single cell, maintain all in the same voltage level required safety, and increase the life span of the battery. The weight of Lithium-iron batteries is 15kg which is half of the lead-acid batteries. This battery weight can be down further. For Example, one cell of 3.6V connects 20 parallel circuits to make one block of 3.6V 100amp. Now like these 3 blocks are connected in series, it will give code number as 3S20P. 4 blocks in series and 20 cells in parallel. This complete set would be 4.2 Kg. So, the weight of the battery with the Battery management system and casing would be 5 Kg. The voltage range of this battery will be 12.6V to 8.4V, 12.6V when fully charged, and 8.4V when fully discharged.

The main disadvantage of a Lithium-iron battery is its short life span (nearly 500 cycles) and changes to catch fire if the battery is overcharged or mechanically damaged. Therefore, a Battery management system and a mechanically strong and weatherproof casing are required for the battery pack. All this would be of no use if we fail to put the proper charge for each type of battery according to its characteristics. If above all the points are taken into consideration battery will work smoothly and efficiently in its life cycle.

12V 100AH battery for ups are different compared to the same rating of battery used in an automobile. Technically both have different discharge characteristics. UPS batteries will discharge slowly and can bear heavy discharge current compared to normal automobile batteries. We observe this characteristic by taking a maintenance-free lead-acid battery of automobile vehicles and UPS batteries. Automobile battery has a life span of 4–5 years whereas, UPS battery has a life span of 3–5 years due to their low discharge rate.

12V 100AH batteries used for UPS are available in different sizes. For example, one battery has a size of 331*173*213mm, and the other battery has a size of 407*174*209mm. Here the first one is compact with a little bit more depth whereas, another one is larger but the depth is 4mm less. This Battery comes in glue sealing so there is no fear of leakage of acidic substance from the battery. It gives protection from the explosion and the plates inside it are flat.

VRLA batteries are now widely used in UPS as they are maintenance-free therefore no headache in filling water due to their plate-like structure and no emission of flume and gases.

Tabular batteries consist of advanced technology by which active material is summarized in polyester tubes to prevent shedding. so, this type of battery is used where environmental conditions are rigid and a high rate of temperature change occurs in the atmosphere regularly.