12V 400Ah Lithium Battery - OEM Factory in China

12V 400Ah Lithium Battery (Group 8D)

• Cell: LiFePO4 (LFP)
• MOQ: 5
• Delivery: 20 Days
• Customizable / OEM / ODM: Yes
• Factory: Redway, Huizhou, Guangdong, China
• Delivery Terms: FOB, EXW, CIF
• Payment: T/T, L/C, PayPal
• Sea / Air / Land Shipment: 10FT, 20FT, 40FT, 60FT

Description

Meet the Redway Power 12V 400Ah Lithium Battery, designed for high-capacity energy storage in demanding applications like off-grid power solutions, RVs, and marine use. Utilizing advanced LiFePO4 technology, this robust battery delivers exceptional performance and reliability, making it an ideal choice for OEM, ODM, and wholesale buyers.

Key Features:

High Capacity: With a nominal capacity of 400Ah and energy output of 5.12kWh, this battery is perfect for powering larger systems and appliances.
Long Cycle Life: Designed for over 4000 cycles at 80% Depth of Discharge (DOD), ensuring longevity and cost-effectiveness.
Wide Operating Temperature Range: Functions efficiently in temperatures from -20°C to 60°C, suitable for various environments.
Advanced Battery Management System (BMS): Provides protection against overcharge, over-discharge, and short circuits for enhanced safety.
Customizable Options: Available for OEM/ODM projects, allowing tailored specifications to meet your unique requirements.

Product Description:

The Redway Power 12V 400Ah Lithium Battery is engineered for those who require reliable and efficient energy solutions in a high-capacity format. With a nominal voltage of 12.8V, this battery features premium LiFePO4 cells that ensure safety and stability. Its dimensions of 523 x 269 x 218 mm (20.6 x 10.6 x 8.6 inches) and weight of approximately 39 kg make it suitable for various applications including RVs, marine vessels, and solar systems.

This battery supports a maximum continuous charge and discharge current of 100A, making it ideal for high-demand situations. The robust construction features an IP65 rating, providing protection against dust and water ingress. Optional functions such as Bluetooth connectivity and an LCD display allow for enhanced monitoring and customization.

Backed by a design life of up to 10 years and compliance with multiple certifications including UL, CE, and RoHS, the Redway Power 12V 400Ah Lithium Battery stands as a trustworthy choice for automotive, renewable energy, marine, and backup power applications. Whether you’re looking to stock up for wholesale distribution or seeking custom solutions for your brand, this battery is your go-to option for superior performance and reliability in the energy sector.

Specifications

12V400Ah	Specifications
Cell Type	LiFePO4 (LFP)
Nominal Voltage	12.8V
Nominal Capacity	400Ah
Nominal Energy	5.12kWh
Max Charge Voltage	14.6V
Discharge Cut-off Voltage	10V
Max Continues Charge Current	100A
Max Continues Discharge Current	100A
Dimensions [L x W x H]	523 x 269 x 218 mm (20.6 x 10.6 x 8.6 inches) Group 8D
Weight	~39kg
IP Rating	IP65
Max Parallel	4
Cycle Life	>4000 cycles (DOD 80%)
LCD Display	Yes (SOC)
Charge Temperature	0°C ~ 60°C
Discharge Temperature	-20°C ~ 60°C
Optional Functions	Bluetooth / APP / WiFi / 4G / GPS / Self-heating / RS485 / CAN-bus / RS232 / Active Balance /etc.
Charger	Optional
BMS	Over current / Over charge / Over discharge / Overload / Over voltage / Low voltage / Overheat / Over temperature / Low temperature / etc.
Terminal	M8
Battery Case	ABS
Design Life	10 Years
Silkscreen / Label / Laser Logo	Yes
User Manual	Yes
Customization / OEM / ODM	Yes
Certifiaction	UL 1642 / IEC 62133 / CE / RoHS / UN38.3

Applications and FAQs

What is the nominal voltage and capacity of this battery?

The 12V 400Ah Lithium Battery has a nominal voltage of 12.8V and a capacity of 400Ah, providing substantial energy storage for applications such as RVs, marine vessels, and off-grid systems.

How long can I expect this battery to last?

This battery offers an impressive cycle life of over 4000 cycles at 80% Depth of Discharge (DOD), ensuring long-lasting performance and making it a reliable choice for high-capacity energy needs.

What is the operating temperature range for this battery?

The battery operates efficiently in temperatures ranging from -20°C to 60°C, making it suitable for diverse environments and applications, from cold weather to hot climates.

Is customization available for this battery?

Yes, the Redway Power 12V 400Ah Lithium Battery is available for customization under OEM and ODM projects, allowing you to tailor specifications such as voltage, capacity, and additional features to meet specific requirements.

What safety features does this battery include?

This battery is equipped with an advanced Battery Management System (BMS) that protects against overcharge, over-discharge, short circuits, and temperature extremes, ensuring safe operation throughout its lifespan.

Can this battery be used in series to create a higher voltage system?

Yes, the 12V 400Ah Lithium Battery can be connected in series to create a higher voltage system, such as a 48V system, by connecting four batteries together.

Know More

How long will a 400Ah lithium battery last?
A 400Ah lithium battery can last up to 10 years or more, depending on usage and maintenance. Under ideal conditions, it can provide power for 400 hours at 1 amp or 40 hours at 10 amps.
How long will a 400Ah battery run an air conditioner?
The runtime of a 400Ah battery for an air conditioner depends on the unit's wattage. For example, a 2000W AC unit could run for approximately 2 hours on a fully charged battery.
How do you calculate how long a lithium battery will last?
To calculate runtime, use the formula: Runtime (hours) = Battery Capacity (Ah) / Load Current (A). For instance, a 400Ah battery powering a 20A load would last about 20 hours.
How much solar do I need for a 400Ah battery?
To effectively charge a 400Ah battery, you typically need around 800-1000W of solar panels. This ensures sufficient energy capture for efficient recharging.
What size charger do I need for a 400Ah battery?
For a 400Ah lithium battery, a charger with at least a 40A output is recommended. This allows for efficient charging without exceeding the maximum current limits.
What is the minimum charge current for LiFePO4 battery?
The minimum charge current for a LiFePO4 battery is usually around 0.1C to 0.2C of its capacity. For a 400Ah battery, this means at least 40A to ensure proper charging.
How many kW is a 400Ah battery?
A 400Ah battery at a nominal voltage of 12V provides approximately . This indicates its total energy storage capacity in kilowatt-hours (kWh).
How long to charge a 400 Ah lithium battery?
Charging time depends on the charger's output. With a typical charger providing 40A, it would take about $40 A 400 A h = 10$ hours to fully charge from empty.
How many amps does it take to charge a 400Ah battery?
To efficiently charge a 400Ah lithium battery, use a charger that provides between 40A to 100A. This ensures faster charging while maintaining safety and longevity.
Which is better, lithium-ion or LiFePO4?
LiFePO4 batteries are generally superior due to their longer cycle life (up to 15,000 cycles), better thermal stability, and enhanced safety features compared to traditional lithium-ion batteries.
What are the disadvantages of LiFePO4 batteries?
Disadvantages include higher initial costs compared to lead-acid batteries and lower energy density. They may require specific charging systems and can be heavier than other lithium options.
Can a 1000W inverter charge a 200Ah battery?
Yes, a 1000W inverter can charge a 200Ah battery if it has an appropriate charger connected. Ensure that the inverter's output matches the charging requirements of the battery.
How many solar panels does it take to charge a 100Ah lithium battery?
To charge a 100Ah lithium battery effectively, you typically need about two to four solar panels rated between 100W to 200W each for adequate energy capture.
Can a 400W solar panel charge a 200Ah battery?
Yes, under optimal sunlight conditions, a single 400W solar panel can charge a 200Ah battery within one day if sunlight is consistent and strong.
Is it better to have two 100Ah lithium batteries or one 200Ah lithium battery?
Using one 200Ah lithium battery is often better due to simpler wiring and management. However, two batteries allow flexibility in usage and redundancy in case one fails.