Outback Power EnergyCell 5.1kWh 48 Volt, Stackable Heated Lithium Battery Module

Outback Power EnergyCell 5.1kWh 48 Volt, Stackable Heated Lithium Battery Module

Name: Outback Power EnergyCell 5.1kWh 48 Volt, Stackable Heated Lithium Battery Module
Brand: Outback Power
SKU: EC-FE5148
Price: 2154.65 USD
Availability: InStock

BY: Outback Power

SKU: EC-FE5148

| Availability: In stock

$2,154.65

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Outback Power EnergyCell 5.1kWh 48 Volt, Stackable Heated Lithium Battery Module

The Outback Power EnergyCell 5.1 is a 48V, 5kW-rated lithium iron phosphate (LFP) battery module designed for scalable residential and commercial energy storage systems. With integrated heating, IP65 outdoor rating, and stackable architecture supporting up to 24 modules, this battery delivers long-term reliability and high-performance energy storage.

Outback Power EnergyCell 5.1kWh 48V Lithium Battery Features

5.12kWh Nominal Capacity – high-density LFP battery chemistry for stable performance

5kW Continuous Output – dependable charge and discharge capability

7.68kW Peak Power – 2-second surge handling for demanding loads

Integrated Heating – optimized performance in cold environments

IP65 Outdoor Rating – weather-resistant enclosure for indoor or outdoor use

Stackable Design – 3–8 modules per stack, up to 24 modules total

RS485 & CAN Communication – inverter and system integration ready

125A Internal Breaker – built-in battery protection

8000 Cycle Life – rated at 0.5C, 80% DoD, 25°C

10-Year Warranty – long-term manufacturer-backed support

Outback Power EnergyCell 5.1kWh 48V Lithium Battery Applications

Residential Energy Storage – whole-home backup and solar self-consumption
Commercial ESS Systems – scalable storage for higher load demands
Hybrid Solar Installations – compatible with CAN/RS485 inverter systems
Cold Climate Installations – integrated heating for low-temperature charging
Outdoor Energy Storage – IP65-rated enclosure for exposed environments

What's Included

Everything you need is included with your product.

1 × EnergyCell 5 Battery Module
2 × Red & Black Power Cables (2 AWG, 6 ft / 180 mm each – 2 Red, 2 Black)
4 × Screws
4 × Expansion Anchors
2 × Wall Brackets

1 × Emergency Shutdown DI/DO Connector & Cable (59 in / 1500 mm)
1 × 120 Ω RJ45 Terminating Resistor
1 × Battery-to-Battery RJ45 Ethernet Communication Cable (8.5 ft / 2200 mm)
1 × Chassis Connector (Battery-to-Battery)

Warranty

10-Year Manufacturer Warranty

Outback Power EnergyCell 5.1kWh 48V Lithium Battery Specifications

General Characteristics

Specification	Value
Model Name	EC-FE5148
Product Type	Low-voltage LFP battery pack
Battery Type	Lithium Iron Phosphate (LFP)
Nominal Energy Capacity	100Ah
Nominal Voltage	51.2Vdc
Voltage Range	44.8–57Vdc
Usable Energy (DoD %)	100% (80% recommended)
Continuous Charge/Discharge Power	5kW (2.5kW recommended)
Peak Power (Duration)	7.68kW (2 seconds)
Communication Protocols	RS485, CAN

Electrical Characteristics

Specification	Value
Charge Voltage Range	56.0+/-0.8Vdc
Discharge Cut-off Voltage	44.8Vdc
Max Continuous Charge Current	100Adc (50Adc recommended)
Max Continuous Discharge Current	100Adc (50Adc recommended)
Max Parallel Units	24 EnergyCell 5 battery modules, 3 EnergyCell 5 control modules

Protection Features

Specification	Value
Recommended Charging/discharging rate	0.5C
Short circuit protection	>250Adc for 0.1ms
Battery Breaker	125Adc
Interrupt current rating	10kA

Other Specifications

Specification	Value
Certifications and compliance	UL 1973, UL 9540 DC ESS (pending), UL9540A, UN 38.3
Warranty and lifecycle	≥8000 (0.5C@25°C, 80%DOD) 10 years
Cycle Life (80% capacity)	8000
Design Life	>10 years

Frequently-Asked Questions

How many modules can be stacked?

Up to 24 battery modules can be connected (3–8 per stack configuration).

Is this battery suitable for outdoor installation?

Yes. It is rated IP65 for outdoor use.

Does it include heating?

Yes. The module includes integrated heating for cold-temperature charging.

What is the cycle life?

Rated for 8000 cycles at 0.5C and 80% DoD.

Manual

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