12V 320Ah Mini Self-Heating LiFePO4 Battery with Bluetooth
Power RVs, solar systems, cabins and marine house loads through freezing weather with a compact 12.8V 320Ah self-heating LiFePO4 battery. It combines 4096Wh of energy, a 200A smart BMS, Bluetooth monitoring, dual-mode self-heating and low-temperature protection for dependable cold-weather energy storage.
Why Choose This 12V 320Ah Self-Heating Lithium Battery?
• 320Ah capacity and 4096Wh energy for extended deep-cycle runtime
• Compact Mini LiFePO4 design saves valuable installation and storage space
• 200A smart BMS supports up to 2560W continuous output
• Bluetooth monitoring for state of charge, voltage, current, power and temperature
• Dual-mode self-heating supports safer charging in freezing conditions
• Low-temperature charge and discharge cut-off helps protect the cells
• IP65 water- and dust-resistant ABS enclosure
• Long cycle life: 4,000 cycles at 100% DOD, 6,000 at 80% DOD and up to 15,000 at 60% DOD
• Expandable up to 4P4S for 12V, 24V, 36V and 48V lithium battery banks
12V 320Ah LiFePO4 Battery Specifications
Battery chemistry: Lithium iron phosphate (LiFePO4)
Nominal voltage: 12.8V
Rated capacity: 320Ah
Stored energy: 4096Wh
BMS rating: 200A
Maximum continuous output power: 2560W
Maximum continuous charge current: 200A
Maximum continuous discharge current: 200A
Peak discharge current: 1000A for 1 second
Charge method: CC/CV
Charge voltage: 14.4V ± 0.2V
Recommended charge current: 64A
Internal resistance: ≤40mΩ
Bluetooth monitoring: Yes
Dual-mode self-heating: Yes
Low-temperature protection: Yes
Protection rating: IP65
Terminal type: M8 x 16mm
Housing material: ABS
Approximate weight: 57.3 lb
Dimensions: 14.49 x 7.44 x 10.04 in
Maximum expansion: 4 in series and 4 in parallel (4P4S)
Dual-Mode Self-Heating for Winter Charging
The battery can heat from -4°F to 41°F (-20°C to 5°C). Regular mode uses an external compatible charger to warm the cells before charging. Energy-efficient mode can use stored battery power for preheating when state of charge is above 20%, subject to compatible app control and system conditions. Approximate heating time is 70–90 minutes from 14°F (-10°C) and 100–150 minutes from -4°F (-20°C).
Bluetooth LiFePO4 Battery Monitoring
Use a compatible mobile app to check charge level and operating data without opening the battery compartment. Bluetooth monitoring makes it easier to manage an RV lithium battery, solar battery bank or off-grid power system and control supported self-heating functions.
High-Capacity RV Lithium Battery
With 4096Wh of stored energy and up to 2560W continuous output, this compact 12V battery is designed for RV house loads, camper vans, motorhomes and truck auxiliary power. Pair it with a correctly sized LiFePO4 charger, inverter, fuse and cables.
Solar and Off-Grid Energy Storage
Use the 12V 320Ah deep-cycle battery for solar storage, backup power, remote cabins and winter off-grid systems. Matching batteries can be expanded up to 4P4S when the complete battery bank is properly engineered and protected.
Marine House Battery Applications
The IP65 enclosure and compact footprint suit protected marine house-power installations for lighting, electronics and auxiliary equipment. This model is a deep-cycle battery and is not intended for engine starting.
Low-Temperature Protection
Charging automatically stops below 32°F (0°C) and resumes at 41°F (5°C) or above. Discharging stops below -4°F (-20°C). Self-heating warms the cells before normal charging, helping support cold-weather RV and off-grid operation.
Frequently Asked Questions
Can this battery charge below freezing?
The dual-mode self-heating system warms the cells before charging. Use a compatible LiFePO4 charging system and follow the installation instructions for the selected heating mode.
Is this battery suitable for engine starting?
No. It is a deep-cycle energy-storage battery for RV, solar, marine house and auxiliary power. Do not use it as an automotive or marine cranking battery.
Can several batteries be connected together?
Yes, compatible batteries may be configured up to 4P4S. Every battery should be the same model, age, capacity and state of charge, with correctly sized cables, fuses, chargers and inverters.
Important Installation Notes
Confirm the charger profile, inverter rating, cable size, fuse protection, terminal orientation and available installation space before ordering. Certifications, warranty coverage, app compatibility, heating controls and supplied accessories should be verified against current ZXKJEnergy production documents.
