Get charged up for the new B2 Audio 44AH LiFePO4 Battery, built to support up to 10,000 watts of burst power and keep serious car audio systems performing at their best.
Pre-order yours today, and we’ll ship it as soon as inventory arrives!
Estimated Ship Date: September 11, 2026
Estimated ship dates are subject to change. All pre-orders are final and non-refundable.
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SUPPORTS UP TO 10,000 WATTS: Designed for high-performance car audio systems, competition builds, and powerful amplifier setups that demand reliable electrical support.
44AH HIGH CAPACITY ENERGY STORAGE: Provides 594 watt-hours of reserve energy to help maintain stable voltage and consistent amplifier performance.
MASSIVE 4,100 AMP OUTPUT CAPABILITY: Delivers exceptional current on demand with minimal voltage sag during heavy bass hits and musical peaks.
ADVANCED LiFePO4 TECHNOLOGY: Offers faster charging, longer lifespan, lighter weight, improved efficiency, and greater reliability compared to traditional AGM batteries.
BUILT FOR SERIOUS AUDIO SYSTEMS: High shock resistance, maintenance-free operation, and dependable power delivery make it ideal for daily drivers and competition vehicles alike.
B2 Audio 44AH 12V Lithium Iron Phosphate Battery 5,000W Car Audio (LiFePO4)
This Listing Includes:
(1) B2 Audio 44AH Lithium Iron Phosphate Battery
Upgrade your electrical system with the B2 Audio 44AH Lithium Iron Phosphate Battery, a high-performance power solution designed for serious car audio enthusiasts who demand maximum output, fast charging, and dependable voltage stability.
Built with advanced LiFePO4 technology, this battery delivers exceptional power density while remaining significantly lighter than traditional AGM batteries. Whether you're powering a high-output daily system, a competition build, or a demo vehicle, the B2 Audio 44AH battery provides the reserve capacity and current delivery needed to keep your amplifiers performing at their best.
With support for up to 10,000 watts of burst power and 5,000 watts of continuous music power, this battery is engineered to handle demanding audio systems while minimizing voltage drop during heavy bass peaks. When paired with a properly upgraded charging system, it can support even greater power demands while maintaining stable performance.
Featuring 594 watt-hours of stored energy and an impressive 4,100-amp maximum output capability, the B2 Audio 44AH battery offers outstanding reserve power and rapid energy delivery for amplifiers, DSPs, and other high-current accessories.
Unlike conventional lead-acid batteries, LiFePO4 technology provides faster charging, longer service life, greater efficiency, improved safety, and excellent resistance to vibration and shock. The result is cleaner power delivery, reduced voltage sag, and more consistent system performance.
Designed for modern high-performance audio systems, the B2 Audio 44AH Lithium Battery is the perfect upgrade for enthusiasts looking to maximize system reliability and electrical performance.
Requires a lithium-compatible battery charger.
Specifications
Battery Chemistry: Lithium Iron Phosphate (LiFePO4)
Nominal Voltage: 12V
Capacity: 44AH
Maximum Wattage Support: 10,000 Watts
Continuous Music Power: 5,000 Watts
Energy Capacity: 594 Watt Hours
Maximum Output Current: 4,100 Amps
High Current Design
Fast Charging Capability
Low Voltage Sag
Lightweight Construction
High Shock Resistance
Maintenance Free Operation
Car Audio Application
Dimensions:
Length - 7.8 in
Height - 6.69 in
Width - 6.54 in
Payment Information
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All orders over $500 will require a signature for delivery.
All pre-selected shipping rates and methods are for customers with a valid residential or commercial address within the Contiguous 48 United States (PO Boxes address may require additional charges).
P.O. Boxes, APO/FPO addresses, Alaska, Hawaii, Puerto Rico, Guam, U.S. Virgin Islands, Northern Mariana Islands, American Samoa, Canada, and other countries may require additional shipping fees. Please contact a member of our team for detailed shipping charges.
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Typical handling time for orders is 1-business day. We do our best to ship every package with-in 1 business day of receiving a cleared payment. In some circumstances additional time may be need, in which case we will contact buyer.
Shipped orders that are returned by the shipping company due to an insufficient address or an undeliverable address will be refunded less a 20% restocking fee.
If package is refused or marked undeliverable and returned back to us by the carrier, you will need to pay the shipping cost in full to have the package sent back to you or we can refund the money minus the cost of shipping
MISSING A PACKAGE?
If you have not received your package, but the tracking information shows that it was delivered, please do the following within 36 hours of expected, stated delivery:
Verify the shipping address on the order is the address where you are looking for the package
Look for a notice of attempted delivery
Look around the delivery location for the package, or see if a neighbor has accepted the delivery
Be sure to double check your mailbox and other usual spots for package delivery
If you think that your package has been stolen, we will require a police report since this is now theft. Once we have a police report on file for the stolen package, we will reship your order.