If you are thinking of setting up an inverter power backup system for
your home, you can choose from a number of options available in the market now with different types of batteries of the specifications you need. In this blog we will take a closer look at the two main types of batteries used in solar systems. In the past, C-10 backup batteries were widely used in off-grid solar systems. But we need to know about the most advanced LiFePo4 batteries known as Lithium Iron Phosphate batteries. Their performance makes us think differently.
LiFePo4 battery Vs C10 Lead Acid battery
Batteries with a lithium anode are known as lithium batteries. Lithium batteries can be divided into three categories based on the technology used in their manufacture. They are lithium-ion, lithium iron phosphate and lithium polymer batteries. The most advanced of lithium batteries are lithium iron phosphate batteries known as LiFePo4 batteries. But batteries made of lead are known as lead-acid batteries because acid is used as the electrolyte.
Difference between LiFePo4 and Lead Acid Battery
A major difference between LiFePo4 batteries and lead-acid batteries is the ability of lithium-iron-phosphate batteries to charge and discharge rates. Another important feature of lithium batteries is their longer cycle life than lead-acid batteries. The cycle life of lithium iron batteries is 5 times the cycle life of C-10 batteries.
Lithium-ion batteries are capable of continuously delivering the same amount of current throughout their discharge cycle. But in lead-acid batteries the power gradually decreases.
LiFePo4 batteries charge four times faster than lead-acid batteries. So, the charging time is faster and the battery gets more time to use. It also has superior high temperature performance compared to C-10 batteries. Lithium batteries perform better at higher temperatures than C-10 batteries. Lithium batteries have high discharge capacity even at cold temperatures.
Watch LiFePo4 connection with BMS video on our channel
Efficiency of LiFePo4 batteries
LiFePo4 can be installed in any location as there is no possibility of leakage. Meanwhile, lead acid batteries are more prone to leakage. The self-discharge rate of a lead-acid battery is 5% higher than that of a lithium-iron battery.
Lithium batteries weight 55% less than lead acid batteries. Battery efficiency is another thing that we need to consider while buying one for our home. Lithium-ion batteries are 95% or more efficient, while lead-acid batteries are only 80 to 85% efficient.
Benefits of LiFePo4 batteries
As a new generation energy storage battery, the LiFePO4 battery offers a very long cycle life.
Features very high constant power and excellent high temperature performance.
More stable and more environmentally friendly as it does not contain cobalt.
Lithium iron battery density is much higher than C-10 lead acid batteries. So, it can power more devices for longer periods of time.
Although lead-acid batteries cost less to purchase and install, the lifetime value of LiFePo4 batteries exceeds them by three to four times. While lead acid batteries have a lifespan of 3 to 5 years, LiFePo4 batteries have a lifespan of 15 to 20 years.
In short, the advanced technology of LiFePo4 makes them a more powerful and highly efficient battery compared to its other competitors.
It is better to choose the battery of well-known companies in the market. Several companies have recently introduced the next generation of highly efficient and long-lasting lithium-iron-phosphate (LiFePo4) batteries for solar off grid inverters.
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