Frequently Asked Questions

How many cycles does a lithium iron phosphate battery last?

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

How do you store a lithium iron phosphate battery?

When storing your Lifepo4 battery, it is important to store it in a cool and dry place. Avoid storing the battery in direct sunlight or in a hot environment as it can damage the battery and reduce its lifespan. It is also recommended to store the battery with a charge of between 20% and 80%

What is the charge limit for LiFePO4?

The nominal voltage of one single LiFePO4 battery cell is 3.2V, and the charge voltage range is 3.50-3.65V. Note that the charge voltage cannot be higher than 3.65V, as lithium battery cells are sensitive to over voltage and over current.

Can LiFePO4 be overcharged?

So what happens if you overcharge a liFePO4 battery? The following things will happen in this case: Permanent Damage: Even if you overcharge the battery once, there will be permanent damage because once the decomposition reaction of internal electrode materials begins, the electrodes are unrepairable.

What is the cut off voltage for LiFePO4 battery?

The nominal voltage is 3.2V, the cut-off charging voltage is 3.6V, cut-off discharging voltage is 2.5V.

At what temperature you can store LiFePO4 at 100%?

In general, follow the guidelines below: Less than 30 days: -20℃ to 60℃ / -4°F to 140°F. 30 to 90 days: -10℃ to 35℃ / 14°F to 95°F. More than 90 days: 15℃ to 35℃ / 59°F to 95°F.

Can lithium iron phosphate batteries leak?

Lithium iron phosphate battery packs are widely used. Sometimes lithium-ion battery packs will occur leakage and bulging, and the battery bulge and leakage of liquid.

Why use lithium iron phosphate batteries?

Longer life span, no maintenance, extremely safe, lightweight, improved discharge and charge efficiency, just to name a few. LiFePO4 batteries are not the cheapest in the market, but due to a long life span and zero maintenance, it’s the best investment you can make over time.

What is the maximum discharge for LiFePO4?

LiFePO4 batteries can be continually discharged to 100% DOD and there is no long-term effect. However, we recommend you only discharge down to 80% to maintain battery life.

Can Different Brand Lithium Iron Phosphate Batteries Be Connected in Parallel?

It is not recommended to use different brand lithium iron phosphate batteries in parallel, as differences in internal chemistry, capacity, and BMS settings can lead to imbalances, reduced performance, or even damage. Always use identical batteries for parallel connections.

If the voltage and capacity are the same, you can connect different brand lithium iron phosphate batteries in parallel. However, it’s still not ideal due to potential differences in internal chemistry and BMS settings, which can lead to imbalances or reduced performance over time.

What is the usable capacity of a LiFePO4 battery?

A LiFePO4 battery can deliver more than 100% of its nominal capacity. A 100 Ampere-hour (Ah) LiFePO4 battery, for example, can deliver more than 100 Ah. A 100 Ah lead-acid battery only has a usable capacity of between 30 and 50 Ah.

How safe is LiFePO4?

LiFePO4 batteries are the safest of the lithium batteries, because they will not catch fire, and won’t even overheat. Even if you puncture the battery it will not catch fire. This is a massive upgrade over other lithium batteries, which can overheat and catch fire.

What is the best setting for a LiFePO4 battery?

For a 4S LiFePO4 battery, we recommend a multi-stage charge profile with a charge voltage of 14.4V (3.6VPC), 30 mins Absorption time in order to balance the lithium cells, and then dropping to a float voltage of 13.6V.

What is the difference between SOC and voltage in LiFePO4?

A LiFePO4 battery’s voltage varies depending on its state of charge. The voltage rises as the battery charges and falls as it discharges. The relationship between voltage and state of charge is non-linear, meaning that a small change in SOC can cause a significant change in voltage.

Is LiFePO4 flammable?

While all lithium-ion batteries have the potential for thermal runaway, LiFePO4 batteries are less prone to this issue due to their stable chemical structure. They are also incombustible, able to withstand harsh conditions, and less likely to release flammable gases or catch fire in the event of a hazardous event.

Are LiFePO4 batteries safe indoors?

Yes, lithium iron phosphate (LiFePO4) batteries have become the industry best choice for RV, marine, automotive replacement, and general solar PV applications. They are extremely safe, can be mounted indoors, and are an outstanding product for mobile living and entertainment.

What happens if LiFePO4 battery freezes?

The Bottom Line: A well-charged LiFePO4 battery in winter can survive storage in freezing temperatures with no extra attention. In other words, charge it, disconnect it, and forget it.