Buy Direct 12 Volt 300 Ah Heated LiFePO4 Battery with Bluetooth

Epoch 12V 300Ah Essential Series LiFePO4 battery with Bluetooth monitoring, internal heating, advanced BMS protection, IP54 weather-resistant enclosure, and 3.84kWh of stored energy for RV, marine, solar, off-grid, and backup power systems.

The Epoch 12300A-H is a high-capacity 12.8V 300Ah heated Bluetooth LiFePO4 battery designed for deep-cycle house-power and auxiliary energy storage applications. With 3.84kWh of stored energy in a Group 31 footprint, it provides a compact lithium upgrade for RVs, marine house systems, vans, solar storage, off-grid systems, and backup power.

Built-in Bluetooth monitoring allows battery status visibility through compatible Epoch Li-Ion iOS and Android apps, while internal heating supports charging in cold conditions when used with compatible charging equipment. The advanced BMS helps protect the battery against overcharge, over-discharge, over-current, short circuit, and temperature extremes.

With a 200A continuous discharge rating, 400A peak discharge for 3 seconds, IP54 dust and splash resistance, and support for up to 4 batteries in series and 4 in parallel, the 12300A-H is built for scalable deep-cycle power systems. This model is not intended for engine starting unless compatibility is confirmed directly with Epoch.

Key Features

• 12.8V 300Ah heated Bluetooth LiFePO4 battery
• 3.84kWh stored energy capacity
• Essential Series deep-cycle design
• Group 31 footprint
• 200A maximum continuous discharge
• 200A maximum continuous charge current
• 400A peak discharge for 3 seconds
• Built-in Bluetooth monitoring for iOS and Android apps
• Bluetooth security PIN for app pairing
• Internal heating for cold-weather charging support
• Advanced BMS protection
• IP54 dust-protected and splash-resistant enclosure
• Maintenance-free LiFePO4 chemistry
• 4,000+ cycle life
• Supports up to 4 batteries in series
• Supports up to 4 batteries in parallel
• Maximum supported configuration: 4S4P
• M8 terminals with 8-12 Nm torque specification
• 11-year manufacturer warranty

Technical Specifications

• Manufacturer: Epoch Batteries
• Model / SKU: 12300A-H
• Series: Essential Series
• Battery Type: Heated Bluetooth deep-cycle LiFePO4 battery
• Battery Group Size: Group 31
• Chemistry: LiFePO4 / lithium iron phosphate
• Cell Configuration: 4S1P
• Nominal Voltage: 12.8V
• Nominal Capacity: 300Ah
• Stored Energy: 3.84kWh / 3,840Wh
• Operating Voltage Range: 10.0V to 14.6V
• Maximum Charge Voltage: 14.6V
• Internal Resistance: Less than or equal to 30 milliohms
• Inverter / Load Cutoff: 11.2V
• Low-Temperature Charge Protection: Yes
• Maximum Continuous Discharge: 200A
• Maximum Continuous Charge Current: 200A
• Recommended Charge Current: 50A
• Recommended Discharge Current: 100A
• Maximum Discharge Peak Current: 400A for 3 seconds
• Short-Circuit Protection: 800A at 500 microseconds
• Low-Voltage Disconnect: 10.0V
• Reconnect Voltage: 12.0V
• Series Connections: Maximum 4 batteries in series, up to 48V system class
• Parallel Connections: Maximum 4 batteries in parallel
• Maximum Configuration: 4S4P
• Charge Temperature Range: -20°C to 55°C / -4°F to 131°F with heating
• Discharge Temperature Range: -20°C to 60°C / -4°F to 140°F
• Recommended Storage Temperature: 0°C to 35°C / 32°F to 95°F
• Operational Altitude: Less than 3000m
• Self-Discharge Rate: Less than or equal to 3% per month
• Dimensions: 13.75 in L x 7.63 in W x 10.0 in H
• Dimensions with Handles / Terminal Bolts: 15.5 in length with handles and 10.5 in height with terminal bolts
• Weight: 58 lb / approx. 26.3 kg
• Case Material: ABS and PC blend, UL94-V0 flame rating
• Enclosure Protection: IP54
• Terminal Type: M8 bolt
• Terminal Torque: 8-12 Nm / 71-106 in-lb
• Bluetooth: Yes, compatible with iOS and Android apps
• Internal Heating: Yes
• Cycle Life: 4,000+ cycles
• Cell / Product Compliance: UL 1642 cells, UL 9540A cells, IEC 62619:2022, CE, RoHS
• Shipping Classification: UN 38.3, Class 9

Applications

• RV house-power systems
• Camper and travel trailer battery banks
• Motorhome 12V energy systems
• Marine house battery systems
• Van and overland auxiliary power systems
• Solar energy storage
• Off-grid power systems
• Backup power systems
• Compatible 12V equipment power
• Inverter charger, converter, solar controller, and DC-to-DC charging systems programmed for LiFePO4

Ideal For

• RV owners upgrading from lead-acid batteries
• Marine house-power installations
• Van life and overland builds
• Solar and off-grid energy storage
• High-capacity 12V battery banks
• Cold-weather applications needing internal battery heating
• Users who want Bluetooth battery monitoring
• Systems needing scalable 12V, 24V, 36V, or 48V battery configurations

Protection Features

• Advanced BMS protection
• Overcharge protection
• Over-discharge protection
• Over-current protection
• Short-circuit protection
• High-temperature disconnect protection
• Low-temperature disconnect protection
• Low-temperature charge protection
• IP54 dust and splash resistance
• Bluetooth security PIN for authorized app pairing
• Flame-rated ABS and PC blend case material
• Short-circuit protection rated at 800A at 500 microseconds

System Compatibility

• Designed for LiFePO4-compatible charging equipment
• Compatible with AC chargers, converters, inverter chargers, solar charge controllers, and DC-to-DC chargers when programmed for LiFePO4
• Supports 12V systems with one battery
• Supports 24V systems with 2 batteries in series
• Supports 36V systems with 3 batteries in series
• Supports 48V systems with 4 batteries in series
• Supports up to 4 batteries in parallel for 1,200Ah at 12.8V
• Maximum supported bank: 4S4P
• Compatible with Epoch Li-Ion app for iOS and Android monitoring
• Not intended as a cranking battery unless Epoch confirms compatibility for the specific engine and installation

Check Before Ordering

• Confirm the required model / SKU is 12300A-H.
• Confirm the battery is being used for deep-cycle house power or auxiliary energy storage, not engine cranking.
• Verify battery tray fitment for 13.75 in L x 7.63 in W x 10.0 in H, plus clearance for 15.5 in handle length and 10.5 in height with terminal bolts.
• Confirm charger, inverter charger, converter, solar controller, or DC-to-DC charger can be programmed for LiFePO4.
• Use recommended charging settings: 14.2V to 14.4V bulk / absorption, float disabled preferred or 13.3V to 13.6V, re-bulk at 13.2V, equalization disabled, and temperature compensation disabled.
• Do not exceed 200A continuous charge current.
• Do not exceed 200A continuous discharge current.
• Treat 400A as a 3-second peak rating only.
• Do not mix with lead-acid batteries in the same battery bank.
• Do not mix different battery models, capacities, ages, or chemistries in series or parallel banks.
• Use matched batteries at similar state of charge for series or parallel configurations.
• Install properly sized DC fusing or circuit breaker protection close to the battery positive terminal.
• Size cables and lugs for current, length, voltage drop, temperature, and installation environment.
• Tighten M8 terminal hardware to 8-12 Nm / 71-106 in-lb.
• Install upright in a clean, dry, ventilated, accessible location.
• Do not submerge, pressure wash, or install where standing water can collect around the battery or terminals.
• Record or photograph the Bluetooth security PIN before installation.

Warranty Information

• 11-year manufacturer warranty.