LiFePO4 Battery Lifespan

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LiFePO4 Battery Lifespan

LiFePO4 Battery Lifespan Sep. 25, 2023

LiFePO4 Battery Lifespan

LiFePO4 (Lithium Iron Phosphate) battery is a type of secondary battery or more commonly called a rechargeable battery that is known for its impressive lifespan. Known to have a total of more than 4000 cycles, this simply  means that a LiFePO4 battery can be charged and discharged up to over 4000 times before it needs a replacement. Let’s assume that the battery gets recharged on a daily basis, 4000 cycles would translate to a total of 10 years and 95 days of battery usage. That’s a really long time for a rechargeable battery so you are definitely getting your money’s worth.

Lifespan of LiFePO4 Batteries

LiFePO4 batteries have a much longer lifespan when compared to other lithium-ion types of battery. The reason behind  this is that this kind of battery is known for its stability and has a lower risk of thermal runaway. Thermal runaway is a phenomenon wherein the heat generated inside a battery shoots up rapidly causing other parts of the battery to destabilize and degrade faster.

In addition, another contributing factor to the long life span of LiFePO4 batteries is that they can operate at a wider range of temperatures. Simulation and experimental results show that this type of battery remains in optimal condition and performs as expected in a working temperature range between 10℃(50°F) and 40℃(104°F).

Since LiFePO4 batteries are known for their stability, it should not come as surprising that it also has the ability to maintain a consistent voltage throughout the discharge cycle. This means that they can deliver power more consistently and reliably compared to other types of batteries. This is another major factor that makes this battery achieve a long lifespan.

Lastly, safety is one of the top priorities when it comes to batteries and LiFePO4 batteries are known as one of the safest batteries in the market at the moment. They have a lower fire risk and explosion compared to other types of lithium-ion batteries since its components are incombustible to begin with. This characteristic means they are more resistant to thermal runaway, which can occur when a battery gets too hot during charging or discharging which helps achieve that longer lifespan compared to other types of batteries.

Eco-Intelligent Li - A Perfect Example of an Impressive LiFePO4 Battery

In the solar community, the LiFePO4 or LFP battery is becoming the preferred option of many users compared to other types of batteries because of its lifespan. Other lithium-ion batteries offer a wide range of lifespans from as short as 500 cycles (1.36 years) to  as long as 3000 cycles (8.21 years). As mentioned in the beginning, LiFePO4 enjoys approximately 4000+ cycles (10.95 years) which means you’ll be using this battery for a decade or more. Truly impressive, isn’t it?

Eco-Intelligent Li is a great example of a LiFePO4 battery. Developed and manufactured by Nature’s Generator, one of the leading solar generator brands in the US, Eco-Intelligent Li was created to provide maximum battery capacity for their solar generators.

Aside from its impressive 6000+ life cycle and lighter load, what makes Eco-Intelligent Li great is that it uses LiFePo4 as the main battery and at the same time, allows users to  connect and mix and match old lithium and lead acid batteries in the system for additional power. These were all made possible thanks to the high-performance and state-of-the-art Battery Management System (BMS) that Nature’s Generator pioneered.

How to Take Care of LiFePO4 Battery

LiFePO4 batteries are known for their durability and long life. However, proper care and handling is still needed in order to achieve and enjoy their optimal performance. Below are a few tips that can help you take care of your LiFePO4 battery.

1. Avoid Extreme Temperatures

LiFePO4 batteries should be kept in a range of 0°C(32°F) to 45°C(113°F) to avoid damage. High temperatures can cause the battery to degrade quickly, reducing its lifespan. When exposed to low temperatures, the battery may start to lose its capacity to hold charge. Hence, it is important to avoid exposing your battery to extreme temperatures as it can cause permanent damage and shorten the lifespan of the battery.

2. Charge and Discharge Regularly

Regularly charging and discharging your LiFePO4 battery will help maintain its capacity and extend its lifespan. Just like any other type of secondary battery, it is recommended to use it regularly and avoid leaving it unused for long periods of time. LiFePO4 batteries have a low self-discharge rate, which means they can hold their charge for a long time. However, leaving the battery unused for a long time can cause the battery to lose its capacity to hold its charge. So make sure to use the battery regularly to maintain its capacity.

3. Use the Right Charger

Manufacturers do not provide chargers for their products just for the sake of  recharging the battery. Every type of battery, including LiFePO4 batteries, need a charger that is designed specifically for them to ensure optimal charging is achieved and for safety reasons as well.. Using the wrong charger may overcharge or undercharge a LiFePO4 battery which can cause damage to the battery and shorten its lifespan.

4. Avoid Overcharging

Overcharging a LiFePO4 battery, or any battery really, can cause permanent damage and shorten its lifespan. Read the user manual and follow the charging instructions provided by the manufacturer to enjoy the battery’s maximum lifespan and prevent any potential damage or hazard. Overcharging can cause the battery to overheat, leading to swelling  or worse, leakage of the battery. It can also cause a reduction in the battery's capacity to hold the charge, leading to poor battery performance.

5. Store in a Cool, Dry Place

Proper storage is very important to keeping your LiFePO4 battery in great shape. When not in use, LiFePO4 batteries should be stored in a cool, dry place and away from direct sunlight. Prolonged exposure to heat or moisture can affect the battery chemistry balance which can greatly damage the battery and reduce its lifespan.

Final Thoughts

In totality, LiFePO4 battery is an excellent choice for applications that require a long-lasting, reliable and durable power source. When used, handled and stored properly, this type of battery can last for more than 10 years. Nowadays, they are commonly used in renewable energy systems such as solar powered generators along with other high-performance applications where reliability, longevity and safety are critical.

 

 

* We want to give credit where credit is due. Professional writer, Ann Matthew, contributed research and content to this blog titled: LiFePo4 Battery Lifespan Thank you, Ann, for your contributions!

How long will a lithium iron phosphate battery last?

How long will a lithium iron phosphate battery last?

Battery storage technology is the formula behind speeding up the process of replacing fossil fuel with completely renewable energy. Battery storage or battery energy storage systems are devices that can store electrical energy.

 

Although there are many types of battery storage systems, picking the right one is crucial. However, considering many factors like cost, efficiency, size, and maintenance, lithium iron phosphate batteries seem to hold the sweet spot for solar energy storage owners.

 

LiFePO4, popularly known as lithium iron phosphate battery, is one of the most robust and durable batteries available on the market today. This type of battery is safe to use, has long life cycles and impressive ratings.

 

In this article, we will mainly discuss the lifespan of the lithium iron phosphate battery, and how to look after the battery.

 

The lifespan of the lithium iron phosphate battery

The battery’s lifespan is measured with the number of cycles the battery can discharge without losing any performance. One cycle means a fully charged battery gets fully discharged and charged back up again. On the other hand, the lifespan is calculated using how many charge cycles the battery can go through with a good dept of charge.

 

Lithium iron phosphate batteries usually are rated for approximately 4500 to 5000 charge cycles with an impressive 80% depth of charge. If you plan on spending one charge cycle each day, the battery is meant to last over 12 years.

 

Due to this impressive lifespan of lithium iron phosphate batteries, many people choose this battery to be the first choice for solar energy.

 

Looking after your lithium iron phosphate batteries

Being one of the most durable and long-lasting batteries, lithium iron phosphate has slowly become one of the most popular in the industry. There are a few steps to ensure that your lithium iron phosphate batteries provide their maximum performance for years to come.

 

  • Charge the lithium iron phosphate battery correctly

To ensure the best performance during its lifespan, you need to charge your lithium iron phosphate battery correctly. One of the leading causes of lifespan degradation and low performance of batteries is overcharging.

 

The maximum voltage of each lithium iron phosphate cell is roughly 4.2 V. But it is always advised to charge it up to 3.2 V per cell. This way will ensure a lower temperature while charging and keep your batteries from sustaining significant damage over the long run.

 

  • Proper terminal mount

Opting for the proper terminal mount is crucial for your lithium iron phosphate batteries. However, if you are unsure which terminal mount is perfect for your cells, you can check with your manufacturer for more information.

 

In addition, after ten days of installation, you must check to make sure the terminal bolts are still tight and secure. If the terminal is loose, it will cause a high resistive zone that draws power and causes heat generation.

 

  • Store the lithium iron phosphate battery carefully

Proper storage of your lithium iron phosphate battery is also essential if you want to look after them properly. During the winter season, when power demand is low, you need to store your batteries properly.

 

The longer you plan on storing your battery, the less flexibility you will have with the temperature. For example, if you want to store your batteries for one month only, your storage can have a temperature of anywhere around -20 °C to 60 °C. But if you want to store it for more than three months, the storage needs to have a temperature between -10 °C to 35 °C.

 

For storing for an extended period, 15 °C to 30 °C is the recommended temperature for your storage.

 

How nRuit can help you

nRuiT is a CATL authorized energy storage system integrator looking to provide the end-users best lithium battery energy storage solution.

 

Our residential energy storage system provides maximized self-consumption and stable emergency power backup. The Power Porter solution is for the home energy storage system, uses LiFePO4 Battery Cell. The advantages of our products are safe, long lifespan, and are easy to install.

 

If you are looking for a reliable supplier, contact us!

How Long Will A LiFePO4 Battery Last?

There are a few things we should pay attention to extend the lifespan of our LiFePO4 batteries and optimize their performance.

Charge The LiFePO4 Batteries Correctly

To ensure optimum performance over the LiFePO4 batteries’ lifetime, we need to properly charge them. One of the main causes of decreased battery life and poor performance is overcharging. Overcharging can cause heat inside the batteries, and extreme overcharging may cause a fire.

The maximum voltage of each LiFePO4 battery cell is about 4.2V. It is recommended to charge the battery to about 3.65V per cell, which ensures a lower charging temperature and prevents damage to the battery over the long term.

Over-discharging may also cause damage to the LiFePO4 batteries. The proper DoD range is 70-80%.

Store The LiFePO4 Batteries Carefully

Proper storage is also essential if you want to take good care of your lithium iron phosphate batteries.

The batteries may self-discharge during storage (<3% per month for LiFePO4 batteries), and high temperatures will reduce the capacity and performance of lithium batteries. So, storing the batteries at a suitable ambient temperature can prolong their life. The following is the recommended storage temperature range:

  1. One month: -20 °C to 60 °C
  2. Three months: -20 °C to 45 °C
  3. Six months: -20 °C to 25 °C
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