Which Battery Type Will Win the Inverter Battle: 4.8 KW Lithium or Tubular Lead Acid

Which Batt Will Win the Inv Battle: 4.8 KW Lithium or Tub Lead Acid

4.8 KW Lithium battery vs tubular lead Acid battery of 4 nos of 150 or 200 Ah capacity. The two types of batteries that are most commonly used in solar energy systems are lithium batteries and tubular batteries. Both have advantages and disadvantages, so choosing the right one for your needs is important. The backup time can not be matched if the load is more than 2 KW for running the Inverter or Solar inverter application.

FEATURE	4.8 KW LITHIUM BATTERY	Tubular LEAD ACID BATTERY
Capacity	C1	C20
Cycle Life	2000-3000 cycles	500-600 cycles
Charge Time	2-4 hours	10-15 hours
Backup time on 4 KW Load	1 hour 15 minutes	25 minutes only
Operating Temperature Range	-20°C to 60°C	0°C to 40°C
Maintenance	No	High
Safety	More stable	Less stable
Price	Rs 15,000-20,000/KW	Rs 18,000-22,000/KW

If we see this comparison, the backup time of a 15oAh Tubular battery on a 4KW load will be just 25 minutes compared to Lithium’s 4.8KW battery capacity. This comparison is made with four batteries of 150Ah tubular having C20 capacity. Even if we take the backup time of 4 number 200 Ah capacity C20 batteries, then matching the backup on the 4 KW is not possible, and if we see in real terms when the Load is higher than Lithium battery cost is cheaper than tubular Lead Acid battery. The Lithium battery costs Rs. 15,000-20,000 per KW, and the cost of a 48Volt System having four batteries of 150 Ah is Rs 48,000-50,000. The backup time on 4 KW of these Tubular four batteries is 30 minutes, and the backup time on a Lithium battery of 4.8KW is approximately 1 hour 15 minutes. So, if we compare the price and backup time, we realize that the tubular battery cost is higher per kilowatt, which will be much higher than the lithium battery price. We need eight batteries of 150 Ah to get the same backup time as the lithium battery backup time, and the price of 8 tubular batteries will reach Rs.96,000-98,000.

The cost of a Lithium battery will be Rs. 60,000-Rs 80,000. So, in absolute terms, Lithium battery pricing is cheaper than the tubular pricing of 4.8KW capacity.

Solar PCU 48V System

Which Batt Will Win the Inv Battle: 4.8 KW Lithium or Tub Lead Acid

Lithium batteries are newer but quickly become the preferred choice for solar energy systems. They are more expensive than tubular batteries, but they offer several advantages, including:

• Longer lifespan: Lithium batteries can last up to 7-10 years, while tubular batteries typically last for 2-3 years. The cycle life of the Tubular batteries will be just 500 cycles compared to the 2000-3,000 cycles of the Lithium battery of LifePO4 chemistry.
• Faster charging: Lithium batteries can be charged much faster than tubular batteries. The Lithium batteries can be charged with 0.50C charging, which means we can charge them in 2 hours, as the Tubular Lead Acid batteries can be charged with a 0.10C charge basis and will take a minimum of 10 hours to charge the battery.
• Deeper discharge: Lithium batteries can be discharged to 80% of their capacity without damaging them, while tubular batteries should not be discharged below 50% of their capacity.
• Lightweight: Lithium batteries are much lighter than tubular batteries, which makes them easier to install and transport.

Tubular batteries are a more traditional type of battery used in solar energy systems for many years. They are less expensive than lithium batteries, but they also have several disadvantages, including:

• Shorter lifespan: Tubular batteries typically last 2-3 years, while lithium batteries can last up to 7-10 years.
• Slower charging: Tubular batteries charge more slowly than lithium batteries. It takes 12-15 hours to charge the Tubular battery bank, and Lithium takes 2-3 hours to charge completely.
• Shallower discharge: Tubular batteries are C20 capacity, and lithium batteries are C1 capacity, and discharging the high current will reduce the backup time in the case of tubular batteries.
• Since the Lithium C1 battery is made for heavy discharge current, backup time and life are maintained.
• Heavyweight: Tubular batteries are much heavier than lithium batteries, which makes them more difficult to install and transport.

Advantages of Lithium batteries

• Longer lifespan
• Faster charging
• Deeper discharge
• Lightweight

Disadvantages of Tubular batteries

• Shorter lifespan
• Slower charging
• Shallower discharge
• Heavyweight

Conclusion

Lithium batteries are better for solar energy systems if you run higher loads than 2KW. They offer several advantages over tubular batteries, including a longer lifespan, faster charging, and deeper discharge. However, tubular batteries are a good option if you are going to run smaller loads which is less than 1KW.

Additional factors to consider

• Climate: Lithium batteries perform better in hot climates than tubular batteries.
• Budget: Lithium batteries are cheaper if we want to run higher loads, and if the Loads are small, Tubular batteries will be cheaper.
• Space: Lithium batteries are more compact than tubular batteries.
• Maintenance: Lithium batteries require less maintenance than tubular batteries.