Description

Technical Parameters

What is 48V 300Ah Rechargeable LiFePO4 Battery?

Lithium Iron phosphate (LiFePO4) batteries are a type of lithium ion (Li-Ion) rechargeable battery. Their benefits over the more traditional cobalt-based Li-Ion batteries are increased power output, faster charging, reduced weight and longer lifetime. The batteries also have better safety characteristics and do not explode under extreme conditions. LiFePO4 batteries also eliminate the concerns of cobolt entering the environment through improper disposal once they have expired.

Advantages of 48V 300Ah Rechargeable LiFePO4 Battery

● Longer Cycle Life: Offers up to 20 times longer cycle life and five times longer float/calendar life than lead acid battery, helping to minimize replacement cost and reduce total cost of ownership.

● Lighter Weight: About 40% of the weight of a comparable lead acid battery. A " drop in" replacement for lead acid batteries.

● Higher Power: Delivers twice power of lead acid battery ,even high discharge rate, while maintaining high energy capacity.

● Wider Temperature Range: -20ºC~60ºC.

● Superior Safety: Lithium Iron Phosphate chemistry eleminates the risk of explosion or combustion due to high impact overcharging or short circuit situation.

What is 48V 300Ah Rechargeable LiFePO4 Battery used for?

Automotive

Lifepo4 batteries are ideal for use in automotive applications due to their high power density, long life cycle, low self-discharge rate and excellent safety record. They are used in various types of electric cars, such as hybrid electric vehicles (HEVs), plug-in hybrid electric vehicles (PHEVs), all-electric vehicles (AEVs) and fuel cell electric vehicles (FCEVs).

Portable Electronics

Lifepo4 batteries are also used extensively in portable electronics such as smartphones, laptops, tablets and digital cameras due to their lightweight and long life cycle. In addition they offer higher energy densities than traditional lead-acid or nickel-based batteries.

Renewable Energy Storage

As renewable energy becomes more prevalent around the world, lifepo4 batteries provide an efficient way to store excess energy produced by solar panels or wind turbines for later use when there is no direct sunlight or wind available. This makes them a great choice for off-grid installations or powering remote locations with reliable electricity sources.

Medical Devices

Lifepo4 batteries are often used in medical devices such as pacemakers due to their excellent safety record compared to other types of rechargeable cells. Additionally, they offer higher specific energies than other chemistries which makes them ideal for powering small medical devices that require frequent recharging without having to be replaced every few months or years like other chemistries would require.

Deep cycle lithium battery

Product Parameter

Electrical Parameter
Nominal Voltage	48V
Nominal Capacity	300Ah
Energy	14400Wh
Cycle Life	>2500 cycles @ (0.1C, 50% DOD)
Self Discharge	<3%/month
Series or Parallel Connection	12pcs in series or parallel
Operating Parameter
Recommend Charge Voltage	54.8±0.2V
Discharge Cut-off Charge Voltage	37.5V
Charge Current	1A~20A
Max. Constant Discharge Current	100A
Peak Discharge Current	150A (<3s)
Charge Temperature Range	0~45ºC
Discharge Temperature Range	-20~60ºC
Storage Temperature Range	0~40ºC
Mechanical Parameter
Dimension (L x W x H)	482570270mm
Weight	107kg
Terminal Type	100A through terminal
Case Material	6U standard case
Cell Type	Prismatic
Chemistry	LiFePO4
Safety Protection
Built in Battery Protection System	Yes
Automatic Inner Cell Balancing	Yes
Automatic Low Voltage Protection	Yes
Automatic Over Voltage Protection	Yes
Automatic Over Current Protection	Yes
Automatic Over Charge Protection	Yes
Automatic Over Discharge Protection	Yes
Automatic Over Temperature Protection	Yes
Automatic Short Circuit Protection	Yes

LiFePO4 vs. Lithium Ion Batteries: How Do They Compare?

Safety

LiFePO4 batteries are safer than Li-ion due to the strong covalent bonds between the iron, phosphorus, and oxygen atoms in the cathode. The bonds make them more stable and less prone to thermal runaway and overheating, issues that have led to lithium-ion batteries having a reputation for a higher risk of battery fires. Stability is why LFPs are the standard in off-grid and solar power applications. When the batteries are in the home, there is no room for error concerning overheating and other issues. Homeowners can confidently store their LiFePO4 battery in the house without worrying about fire safety issues.

Energy Density

Li-ion batteries typically have a higher energy density than LFPs. The energy density of a battery is a measure of how much energy it can store per unit of volume or weight. Li-ion batteries can store more power per volume or weight unit than LFPs. For example, the energy density of a typical Li-ion battery is around 45–120 Wh per lb (100-265 Wh per kg), while the energy density of a LiFePO4 battery is about 40–55 Wh per lb (90-120 Wh per kg). The expansive energy density range of Li-ion batteries is due to this statistic encompassing all types of Li-ion batteries, including technologies only suitable for electric cars and other applications.

Weight

The weight of a battery bank has some correlation to energy density, as mentioned above. LiFePO4 battery banks may weigh slightly more than comparable Li-ion batteries, while some LFPs may be lighter because the metals used in their construction are lighter. Either way, any slight variation in weight pales in light of the other enormous advantages of LFPs. Li-ion batteries with higher energy densities-such as nickel-cobalt-aluminum (NCA) and nickel-cobalt-manganese (NCM)-are no longer considered ideal for off-grid and solar applications. Instead, home power solutions use safer, longer-lasting technologies like LiFePO4. A safer battery is more important than a slight difference in weight.

Temperature Range

LiFePO4 batteries offer a wider operating temperature range. They can function well in temperatures ranging from -4°F (-20°C) to as high as 140°F (60°C). In contrast, Li-ion batteries have a much smaller temperature range of 32°F (0°C) to 113°F (45°C). Users need to store Li-on batteries in climate-controlled spaces during the depths of winter or the heat of summer. LiFePO4 batteries are safe to store in the house, shed, garage, or other indoor space without air conditioning. They're less susceptible to temperature changes, giving you more options for locating the battery without potential damage or reduced efficiency.

Lifespan

Many Li-ion batteries can go through around 500 charge and discharge cycles before degrading in performance. LiFePO4 batteries can go through thousands of cycles before their performance begins to drop.

This much longer lifespan means that LiFePO4 will reduce the environmental impact resulting from e-waste. The lack of nickel and cobalt also makes them more environmentally friendly. You can use your LFP battery bank for 5 or 6 times longer than a Li-ion model, and you won't waste money on replacements.

How to Charge a LiFePO4 Batteries?

Charger Inspection

Before using a LiFePO4 charger, check that your charger's cables are insulated and free of breakage. Charger terminal connectors should be clean and properly mate with the battery terminals to ensure a good connection and optimum conductivity.

Charging Guidelines

If LiFePO4 batteries are not fully discharged, they do not need to be charged after each use. LiFePO4 batteries do not get damaged when left in a partial state of charge (PSOC). You can charge your LiFePO4 batteries after each use or when they have been discharged up to 80% DOD (20% SOC). If the Battery Management System BMS) disconnects the battery due to low voltage (voltage will be <10V), remove the load and charge immediately using a LiFePO4 battery charger.

Charging Temperature

LiFePO4 batteries can be safely charged between 0°C to 45°C (32°F to 113°F). LiFePO4 batteries do not require temperature compensation for voltage when charging at hot or cold temperatures. All LiFePO4 batteries come with an internal BMS that protects the battery from low and high temperatures. If the BMS disconnects due to low temperature, the battery must warm up for the BMS to reconnect and accept the charging current. If the BMS disconnects because of high temperature, the battery will need to cool down before the BMS will accept charging the battery. Please refer to your specific battery's datasheet for the BMS low temperature and high-temperature cut-off and reconnect values.

How to Store Lifepo4 Batteries?

Proper storage of lifepo4 batteries is crucial for maintaining their performance and longevity.

One of the first things to consider when storing a lifepo4 battery is the temperature. These batteries are sensitive to extreme temperatures, so it's important to keep them in a cool, dry place. Ideally, they should be stored at room temperature (around 20°C) with low humidity levels.
Another factor to consider when storing your lifepo4 battery is its charge level. It's best to store these batteries at around 50% charge level as this helps preserve their lifespan. If you plan on storing your battery for an extended period, it's recommended that you fully discharge it before putting it away.
Additionally, make sure to store your battery in a safe and secure location away from any flammable materials or sources of heat.

FAQ

Q: How can you guarantee the production quality ?

A: Our production quality follow IS09001 standard. We have 30years experience of QC team. We have strictly quality control system in our production process. We have 4 times inspection for each finished product before package Third part inspection accepxable.
Normally 30-45days after receiving your payment, but it can be negotiated based on order qty and production schedule.

Q: How can I resell lithium batteries well in my market ?

A: Do market research, set your focus application field,learn more knowledge about lithium battery. build your own brand. We can work together with you to explode the market.

Q: Can I get a lower price if lorder large quantities?

A: Yes, cheaper prices with more bigger size orders.

Q: What is the difference between a lithium battery and a LiFePO4 battery?

A: The primary difference lies in their chemical composition. Lithium batteries typically encompass various lithium-based chemistries like lithium-ion or lithium-polymer, while LiFePO4 batteries specifically use lithium-iron phosphate chemistry known for enhanced safety and longevity.

Q: What is the problem with the LiFePO4 battery?

A: LiFePO4 batteries generally have a lower energy density compared to some other lithium-ion chemistries. While they offer enhanced safety and stability, they might have a slightly lower specific energy and be less compact.

Q: Can I charge a LiFePO4 battery with a lithium-ion charger?

A: It's not recommended to charge a LiFePO4 battery with a lithium-ion charger due to differences in voltage and charging profiles. Using a charger specifically designed for LiFePO4 batteries ensures safe and efficient charging.

Q: How do you charge a LiFePO4 battery?

A: During charging, LiFePO4 batteries are typically charged in two stages: constant current (CC) and constant voltage (CV). The CC stage involves charging at a consistent current rate (usually 0.3C to 1C) until reaching a predefined voltage level, followed by the CV stage where the voltage is maintained while the current gradually decreases until the battery is fully charged.

Q: Can LiFePO4 Battery be used in electric vehicles?

A: Yes, LiFePO4 Battery is commonly used in electric vehicles due to its high energy density, long lifespan, and excellent safety characteristics.

Q: Are LiFePO4 Batteries compatible with existing charging systems?

A: LiFePO4 Batteries can be charged using standard lithium-ion battery chargers. However, it is recommended to use chargers specifically designed for LiFePO4 Batteries to optimize charging performance and ensure safety.

Q: What are the safety features of the LiFePO4 Battery?

A: LiFePO4 Battery has inherent safety features such as superior thermal stability, reduced risk of thermal runaway, and lower chances of fire or explosion compared to other lithium-ion batteries.

Q: What is the difference between a lithium battery and a LiFePO4 battery?

A: Here are some key differences between the two types of batteries: Composition: LiFePO4 batteries use lithium iron phosphate as the cathode material, while lithium-ion batteries can use various cathode materials, such as cobalt oxide, manganese oxide, or nickel oxide.

Q: What is LiFePO4 battery used for?

A: These batteries provide high energy density and a long lifespan, making them ideal for powering electric vehicles. Portable Devices - LiFePO4 batteries are the choice of power for a wide range of portable electronic devices, including but not limited to smartphones, laptops, tablets, and digital cameras.

Q: Should I charge LiFePO4 to 100%?

A: LiFePO4 battery does not need to be fully charged, so trickle charge and float charge are not necessary. LiFePO4 batteries only require two stages of charge, including constant current charge and constant voltage charge, which is also called bulk charge and absorption charge.

Q: How to charge LiFePO4 battery at home?

A: Connect the charger to your power source, either AC or DC depending on your charger's specifications. Turn on the power source and start charging. Monitor the charging process using a multimeter or battery monitor. Keep an eye on the voltage, current, and temperature of the battery as it charges.

Q: Why don't phones use LiFePO4?

A: These batteries don't perform well at low temperatures and need more protection and care. Transportation and aging effects are also common in lithium iron phosphate batteries. One of the drawbacks of LPF is deep discharge and low density. These flaws make these batteries unfit for small devices such as smartphones.

Q: What is the lifespan of a LiFePO4 battery?

A: 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.

Q: What type of charger should I use for my LiFePO4 battery?

A: A reliable charger is essential for keeping your battery in prime condition. Skillfully crafted, it should charge with precision and accuracy to ensure longevity. Like a trusted companion, it will stand by you through thick and thin, all the while sustaining optimal performance. Investing in a quality power supply will guarantee sustained satisfaction.

Q: Is there a risk of overcharging my LiFePO4 battery?

A: Yes, there is a risk of overcharging a lithium ion (Li-ion) battery such as the Lifepo4. Overcharging can lead to damage or even destruction of the battery, reducing its lifespan and potentially causing safety issues.

Q: How often should I check the voltage of my LiFePO4 battery?

A: Symbolic of longevity, checking the voltage of a Lifepo4 battery should be done regularly to ensure performance. Analyzing current readings can help identify potential issues before they become a problem and allow for preventive maintenance. Detailed knowledge of how often to check is key to maintaining optimal battery health and providing freedom from worry.

Q: How do I know when it is time to replace my LiFePO4 battery?

A: When a LiFePO4 battery no longer holds a charge, fails to recharge, or exhibits signs of physical damage, it is likely time to replace it. Testing the battery's capacity and cycling can help determine if a replacement is needed.

Q: What type of environment should I store my LiFePO4 battery in?

A: Provocative yet informative, the ideal environment to store your battery is cool, dry and out of direct sunlight. Avoid extreme temperatures and moisture as these can cause corrosion, leading to premature failure. Take care to avoid potential hazards such as dust or flammable materials. With a little thought and attention, you can ensure your battery lasts for years.

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