Aims Power LiFePO4 24V 400 AH Lithium Battery - LFP24V400A

Aims Power LiFePO4 24V 400 AH Lithium Battery - LFP24V400A

NEW from AIMS Power! This 24 Volt 400 AMP lithium iron phosphate (LiFePO4) industrial deep cycle battery is packed with power. The battery delivers efficient power for battery systems requiring large amounts of power at 24 Volts. The AIMS Power 24V 400 amp has large amp capacity in one battery and eliminates the need for multiple batteries without losing amperage. Compared to other battery technologies, this battery delivers large amounts of power, at half the weight and provides up to 8 times more battery cycles with no memory problems. Loaded with automatic safety features, such as a Battery Management System (BMS), which maintains individual cell integrity, low and high voltage protections, reverse polarity and temperature management. The battery also uses automatic cell balancing, requires almost no maintenance and includes RS485 and CAN monitoring. RS485 or CAN interface not included.

Features

•  8 times more cycles compared to other battery technologies
•     3500 cycles at 80% DoD, 6000 cycles at 60% DoD
•     Short circuit protection
•     Automatic low voltage shutdown
•     Over charge protection
•     Over discharge protection
•     Mount in any orientation
•     Multiple batteries: 10 batteries in parallel maximum
•     Automatic cell balancing
•     High output current for inverters
•     Battery status LED located on the front of the battery displays SOC percentage RS485 & CAN ports
•     Power switch
•     Built in Battery Management System (BMS)
•     Reverse polarity protection (caution)
•     No venting or gassing
•     BMS temperature protection
  

Specifications

•   24Volt Lithium Iron Phosphate LiFePO4
•     400 amps
•     Battery status LED State of Charge display
•     On/off switch
•     3/8 terminals
•     Terminal covers included
•     Cables included used for parallel connecting batteries: 41" cable length
•     Dimensions: 32"L x 21"W x 7"H
•     Shipped dimensions: 38"L x 29"W x 21 1/2"H
•     Unit weight: 214 lb, Shipped weight: 242 lb

What our Experts Think  

• The AIMS Power LFP24V400A is a high-capacity 24V 400Ah LiFePO4 deep-cycle lithium battery designed for serious off-grid, RV, marine, and solar power systems.
• Delivers approximately 10.2 kWh of usable energy, making it suitable for long-runtime backup and full-day off-grid operation.
• Built with an advanced Battery Management System (BMS) for protection against overcharge, over-discharge, short circuit, and temperature extremes.
• Supports high discharge currents, making it compatible with large inverters up to multi-kilowatt loads without voltage instability.
• Offers exceptional cycle life (3,500–6,000+ cycles) depending on depth of discharge, significantly outperforming lead-acid batteries.
• Designed to replace large lead-acid banks with a single compact unit, reducing wiring complexity and maintenance.
• Includes RS485/CAN communication support for advanced monitoring in solar and energy management systems (interface modules may be required).
• Heavy-duty industrial build with mount-any-orientation design and sealed lithium construction (no gassing/venting).

                 
Q&A          

Q: What is the AIMS Power LFP24V400A LiFePO4 24V 400Ah Lithium Battery?
A: The AIMS Power LFP24V400A is a high-capacity 24V 400Ah lithium iron phosphate (LiFePO4) deep-cycle battery designed for solar, off-grid, RV, marine, and backup power systems.

Q: How much energy storage does it provide?
A: It delivers approximately 10.24 kWh of energy, offering long runtime for large inverter systems and heavy loads.

Q: What type of battery technology is used?
A: It uses LiFePO4 chemistry, known for high safety, stable performance, and long cycle life compared to lead-acid batteries.

Q: How long does it last?
A: It offers around 3,500 cycles at 80% depth of discharge and up to 6,000 cycles at lower discharge levels, providing long service life.

Q: What safety features are included?
A: The built-in BMS (Battery Management System) provides protection against overcharge, over-discharge, short circuit, reverse polarity, and temperature extremes.

Q: Can it be monitored or integrated into systems?
A: Yes, it includes RS485 and CAN communication ports for advanced monitoring and system integration (interfaces may require separate hardware).

Q: Is it suitable for solar and off-grid systems?
A: Yes, it is designed for high-demand 24V systems in solar setups, cabins, RVs, and commercial energy storage applications.

Q: What makes this battery stand out?
A: It replaces multiple lead-acid batteries with a single high-capacity unit, reduces wiring complexity, offers higher efficiency, and maintains performance with minimal maintenance.

         
Maintenance Tips        

• Install in a cool, dry, well-ventilated area; avoid heat, direct sunlight, and moisture to protect the BMS and cells.
• Keep battery terminals tight, clean, and corrosion-free to ensure stable high-current output for inverters.
• Regularly check BMS status indicators (SOC LED / protection alarms) for early warning of faults or imbalance.
• Avoid deep discharge below recommended limits; rely on low-voltage cut-off protection instead of fully draining the battery.
• Charge using a proper LiFePO4-compatible charger/inverter profile (24V system) to prevent under/overcharging stress.
• Ensure proper airflow around the battery enclosure even though LiFePO4 produces no gas.
• Do not exceed recommended parallel expansion limits (typically up to 10 units) to avoid imbalance issues.
• Periodically inspect cables, fuses, and busbars for heat signs, especially in high-load solar or inverter setups.
• Store at partial charge (around 40–60%) if unused for long periods to preserve cycle life.