The inverter battery with the longest lifespan typically depends on the type of battery and its specific features. However, in general, tubular batteries used to have the longest life in Inverter usage, but not any more as Lithium-ion has entered the Inverter market. This battery can last longer than Tubular batteries as there is no comparison between these two types of batteries as far as the long life is concerned.https://www.cummins.com/news/2019/06/17/spot-difference-lithium-ion-versus-lead-acid-battery-electric-technology
Here are some of the factors that can affect the lifespan of an inverter battery:
- Battery type: As mentioned above, Lithium batteries typically have the longest lifespan. However, if properly maintained, other types of batteries, such as deep-cycle Tubular Lead Acid batteries, can also have long lifespans. But the life of lithium-ion batteries can’t be compared with that of Tubular lead-acid batteries or any other type of lead-acid battery.
- Depth of discharge (DOD): The depth of discharge is the percentage of the battery’s capacity used before it is recharged. Deeper DODs can shorten the lifespan of a battery. So the Tubular battery has a maximum of 50 to 60% Depth of Discharge, whereas the Lithium-ion can be 90 to 100% DOD possible.
- Maintenance: Regular maintenance, such as checking the water level and cleaning the terminals, regular watering of the tubular Lead Acid baterries, and after the refilling of distilled water when charging starts, the acid comes out on the floor, which creates a ruckus in any home or office, which is the common cause. Lithium-ion requires no maintenance as they are sealed batteries, and nothing can be done.
- Environmental Pollution: Tubular Lead Acid batteries create a lot of pollution when they are being charged or discharged, which is impossible in Lithium-ion batteries as they have completely sealed batteries, and there is no way they can emit any chemicals and gasses in the environment.
- Life of the Battery: The life of a Lithium-ion battery can be from 10-15 years if the Inverter/UPS has the right charger for the exact chemistry of Lithium-ion batteries. There are multiple types of lithium-ion batteries, and the LifePO4 and NMC chemistry are the two important Lithium-ion batteries available in the market which are the most successful. The tubular batteries start failing in the working inverter within the first two years of operation and last up to a maximum of 3 to 4 years.
A Lithium ionone is a good option if you want an inverter battery with the longest lifespan. However, it is important to note that Lithium-ion batteries are also the most expensive type of inverter. If we compare the life of these two batteries, one thing comes out very clearly: the load we will use with the inverter. If the load is less than 300 watts on a single battery Inverter, the Tubular battery will be the right choice as this one is a C20 capacity battery. But if you are going to use 400 watts or more than that load on a single 12-volt battery, lithium is cheaper, and the right battery, as this is a C1 battery, can take higher loads and will give higher life as well.https://www.researchgate.net/publication/348771726_Comparison_of_Lead-Acid_and_Li-Ion_Batteries_Lifetime_Prediction_Models_in_Stand-Alone_Photovoltaic_Systems
- Longer lifespan: Lithium batteries generally have a longer lifespan than Tubular lead-acid batteries. They can endure more charge-discharge cycles without significant degradation, leading to a longer operational life.
- Faster charging and discharging: Lithium batteries have higher charge and discharge rates, allowing them to charge faster and provide power more efficiently. This is especially useful in UPS systems responding quickly to power outages and fluctuations. The Lithium battery is charged in 2 to 3 hours, whereas the Tubular lead Acid battery takes 15 hours to charge.
- IOT feature: The lithium battery has a Battery Management System to monitor and control its parameters through Bluetooth and Wi-Fi mobile applications.
- Lower self-discharge rate: Lithium batteries have a lower rate, meaning they can hold their charge longer when not in use. In contrast, Tubular lead-acid batteries tend to lose charge more rapidly over time.
- Smaller size and weight: Lithium batteries can be much smaller and lighter than lead-acid batteries due to their higher energy density. This makes them easier to handle and install in various applications.
- Reduced maintenance: Lithium batteries require minimal maintenance compared to Tubular lead-acid batteries, which may need regular checks for water levels and acid replenishment.
- Improved efficiency: Lithium batteries have higher charge and discharge efficiency, meaning less energy is wasted during charging and discharging. This leads to better overall system efficiency in Inverter/UPS applications.
- Safety features: Many lithium batteries have advanced safety features such as overcharge protection, over-discharge protection, and thermal management systems. The lithium battery has a built-in management system but no tubular lead acid battery protection system. These features help prevent damage to the battery and ensure safe operation in Inverter/UPS systems.
- Scalability: Lithium battery systems can be easily scaled up or down depending on power requirements, making them more flexible for various applications.https://suvastika.com/what-is-lithium-inverter-ups/#:~:text=A%20lithium%20inverter%2FUPS%20is%20an%20inverter%2FUPS%2FBESS%20specifically%20designed,Higher%20energy%20density%20Faster%20charging%20Weight%20and%20space-saving
When it comes to the life of the Inverter battery the Load becomes a major parameter; if you need to run a smaller load, then a Tubular battery can be a good choice, but if we need to run higher loads, then there is no choice other than using Lithium-ion batteries.