The Redway 12V 250Ah LiFePO4 Lithium Battery is engineered for high performance and longevity, making it an ideal choice for OEM, ODM, and wholesale buyers. With advanced Battery Management System (BMS) integration, this battery offers exceptional safety and reliability for various applications including solar energy storage, electric vehicles, and backup power systems.

Key Features:

· High Capacity: 250Ah nominal capacity for extended power supply.

· Long Cycle Life: Over 4000 cycles at 80% depth of discharge (DoD) ensures durability.

· Versatile Temperature Range: Operates effectively from -20°C to 65°C.

· Smart BMS Protection: Safeguards against overcharge, over-discharge, and short circuits.

Product Description:

The Redway 12V 250Ah LiFePO4 Lithium Battery is designed to meet the rigorous demands of modern energy applications. Featuring a nominal voltage of 12.8V and a robust capacity of 250Ah, this battery provides reliable energy storage with a nominal energy output of 3200Wh. Its lightweight design (only 21 kg) allows for easy installation and transport, while the IP65 rating ensures protection against dust and water ingress.

With customizable options available for OEM/ODM buyers, this battery supports advanced features such as Bluetooth connectivity, making it ideal for smart energy solutions. The intelligent BMS enhances safety by monitoring cell performance and ensuring optimal operation under various conditions. Trust Redway Power for a dependable power solution that combines efficiency with cutting-edge technology.

Applications and Customization of 12V 250Ah LiFePO4 Batteries

What applications use 12V 250Ah LiFePO4 batteries?
12V 250Ah LiFePO4 batteries are widely used in RV power systems, marine applications, solar storage, and backup power due to their high energy density, long lifespan, and deep cycle capabilities. Their lightweight design and superior efficiency make them ideal for off-grid solutions and sustainable energy storage.

How to customize LiFePO4 batteries via OEM in China?
China-based OEMs offer customized voltage, capacity, shape, and BMS features based on client requirements. Businesses can specify design parameters, safety protections, and communication protocols like Bluetooth or CAN bus. OEM manufacturers provide engineering support to develop batteries tailored for industrial, commercial, or residential applications.

What certifications do Chinese OEM LiFePO4 batteries have?
Chinese OEM LiFePO4 batteries commonly hold CE, UN38.3, IEC, UL, and RoHS certifications. These ensure compliance with international safety, transportation, and environmental regulations. High-quality manufacturers also conduct third-party testing to verify battery performance, durability, and operational safety.

What's the lead time for 12V 250Ah LiFePO4 production?
Lead times vary by manufacturer but typically range from 15 to 30 days for standard orders. Custom battery designs, bulk production, or additional certifications may extend production time. Advanced automation and streamlined supply chains help leading OEMs minimize delays.

How to ensure quality in China-made LiFePO4 batteries?
Reputable Chinese manufacturers follow ISO 9001-certified quality control processes, including raw material testing, automated cell matching, and multi-stage inspections. Advanced BMS technology, temperature control mechanisms, and third-party safety certifications further enhance reliability and consistency.

What factors affect pricing for OEM LiFePO4 batteries?
Pricing depends on raw material costs, production volume, BMS complexity, and certifications. High-purity lithium iron phosphate, smart battery management features, and enhanced safety protections increase costs. Bulk orders and long-term supplier agreements often secure lower unit prices.

Performance and Safety of 12V 250Ah Lithium Batteries

What is the maximum continuous load supported?
A 12V 250Ah LiFePO4 battery typically supports a continuous discharge rate of 100A to 150A. High-performance models with enhanced BMS may provide higher discharge currents, making them suitable for demanding power applications like marine and off-grid solar systems.

Typical applications for 12V 250Ah lithium batteries?
Common applications include solar energy storage, RV power systems, marine backup, industrial machinery, and telecom stations. Their deep cycle capability, high efficiency, and maintenance-free operation make them ideal for long-term, reliable power solutions.

Charging time for 12V 250Ah lithium battery?
Charging time depends on charger capacity and voltage settings. Using a 50A charger, a 12V 250Ah battery typically takes 4 to 5 hours to fully charge. Faster charging requires higher amperage but must comply with BMS safety limits.

Safety certifications for these lithium batteries?
12V 250Ah lithium batteries commonly meet CE, UN38.3, IEC, UL, and RoHS standards. These certifications ensure compliance with electrical safety, transportation, and environmental regulations. Quality manufacturers also conduct extensive testing for short-circuit and thermal runaway prevention.

Warranty period and conditions offered?
Reputable manufacturers offer warranties ranging from 3 to 10 years, depending on the brand and quality. Warranties cover manufacturing defects, performance degradation, and safety failures, but improper use, overcharging, and physical damage may void coverage.

Customization options for bulk orders?
Bulk orders allow for customized voltage, dimensions, terminal types, BMS settings, and communication interfaces. OEM suppliers provide tailored solutions for industries requiring specific performance features, such as smart monitoring or ruggedized designs for harsh environments.

Key Features and Comparisons of 12V 250Ah Lithium Batteries

What are the key specifications of 250Ah deep cycle lithium battery?
A 12V 250Ah deep cycle LiFePO4 battery typically features 3,000 to 6,000 cycles, 95% efficiency, and a 100A discharge rate. It offers stable voltage, lightweight design, and superior thermal stability compared to lead-acid alternatives.

Which applications are ideal for China OEM 250Ah lithium batteries?
China OEM 250Ah lithium batteries are widely used in off-grid solar storage, electric vehicles, marine power, telecom backup, and industrial machinery. Their high cycle life and deep discharge capabilities make them suitable for long-term energy storage and heavy-duty applications.

How does cycle life compare to traditional lead-acid batteries?
A 12V 250Ah LiFePO4 battery lasts 5 to 10 times longer than lead-acid batteries, offering 3,000 to 6,000 cycles compared to 300 to 500 cycles for standard AGM or gel batteries. LiFePO4 also maintains a higher depth of discharge without performance loss.

What safety certifications do China OEM lithium batteries have?
OEM lithium batteries from China commonly hold CE, UN38.3, IEC, UL, and RoHS certifications. These certifications ensure compliance with global safety, transportation, and environmental regulations, verifying the battery's quality and operational safety.

Are these batteries maintenance-free and temperature-resistant?
Yes, 12V 250Ah LiFePO4 batteries are maintenance-free and operate within a wide temperature range (-20°C to 60°C). Their advanced BMS prevents overcharging, over-discharging, and overheating, ensuring long-term reliability in various environments.

What are the advantages of OEM vs standard lithium batteries?
OEM lithium batteries provide customized design, tailored BMS, and optimized performance for specific applications. Unlike standard off-the-shelf batteries, OEM solutions offer better integration, enhanced efficiency, and application-specific modifications to meet unique power demands.

Pricing and Availability of 12V 250Ah Lithium Batteries

What affects 12V 250Ah lithium battery pricing?
Pricing is influenced by raw material costs, battery management systems, certifications, and production volume. Premium-grade lithium cells, smart monitoring features, and high-power BMS designs increase costs. Bulk orders typically reduce unit pricing.

How does it compare to lead-acid batteries?
LiFePO4 batteries last 5 to 10 times longer, are 50% lighter, and maintain higher efficiency compared to lead-acid batteries. They offer lower lifetime costs despite a higher initial price due to reduced maintenance and longer lifespan.

What is the average charging time required?
A 12V 250Ah lithium battery takes 4 to 5 hours to charge with a 50A charger. Faster charging requires a higher amperage charger but must stay within the BMS’s allowable limits to avoid overheating or damage.

How long does its lifespan typically last?
LiFePO4 batteries last 10 to 15 years, delivering 3,000 to 6,000 cycles at 80% depth of discharge (DoD). Their superior longevity far exceeds that of traditional lead-acid batteries.

Are maintenance costs lower than alternatives?
Yes, LiFePO4 batteries require no maintenance compared to lead-acid, which needs regular water refilling, corrosion cleaning, and equalization charging. This reduces operational costs and downtime.

Where to buy reliable 12V 250Ah lithium batteries?
Reliable suppliers include OEM manufacturers, certified wholesalers, and specialized battery distributors. Choosing vendors with certifications, positive reviews, and strong warranties ensures product quality and long-term support.

Certifications and Industry Compliance

What does CE certification entail for lithium batteries?
CE certification ensures a battery complies with European safety, environmental, and performance standards. It verifies protection against short circuits, overcharging, and overheating, making it essential for market approval in the EU.

How do manufacturers ensure safety in lithium battery production?
Manufacturers follow ISO 9001, strict quality control, and third-party testing for safety compliance. This includes cell balancing, thermal management, and BMS integration to prevent electrical hazards and improve longevity.

Which industries use CE-certified 250Ah lithium batteries?
Industries include renewable energy storage, marine applications, telecom backup, industrial automation, and electric mobility. CE-certified batteries ensure compliance with safety regulations for various global markets.