Hubble AM4 2.56kWh 25.6V LiFePO4 Lithium Battery

Hubble AM4 2.56kWh Lithium Battery

The Hubble AM4 2.56kWh 25.6V LiFePO4 Lithium Battery is a compact, high-performance energy storage solution designed for residential solar, backup power and compatible 24V inverter systems.

With 2.56kWh nominal energy, 100Ah rated capacity and a 25.6V nominal voltage, the AM4 provides reliable lithium battery storage in a compact enclosure that can be wall mounted or installed on a suitable shelf rack.

The AM4 features a 1C rating with up to 100A continuous charging and discharging capability, prismatic LiFePO4 cells, an advanced Battery Management System (BMS), internal fire suppression and optional integration with the Hubble Cloudlink remote monitoring platform.

2.56kWh Battery Storage Capacity

The Hubble AM4 provides 2.56kWh of nominal energy with a rated capacity of 100Ah at 25.6V.

Its compact capacity makes it particularly suitable for smaller solar and backup power installations where a full-size 48V or 51.2V battery system is not required.

Multiple AM4 batteries can also be connected in parallel where additional storage capacity is required.

1C High-Performance Lithium Battery

The Hubble AM4 is a 1C high-performance LiFePO4 battery capable of delivering up to 100A continuous discharge current.

It also supports a maximum continuous charging current of 100A. Hubble recommends a charge current of approximately 30A to help prolong battery life.

The combination of compact energy storage and strong discharge capability makes the AM4 suitable for applications where both battery size and power delivery are important.

LiFePO4 Battery Technology

The AM4 uses LiFePO4 (Lithium Iron Phosphate) battery cells, a chemistry widely used in modern solar energy storage due to its thermal stability, long service life and suitability for frequent charging and discharging.

Hubble specifies a design life of approximately 15 years, with cycle-life figures of approximately 6,000 cycles at 50% depth of discharge and more than 3,000 cycles at 100% depth of discharge under the specified test conditions.

Advanced Battery Management & Protection

The Hubble AM4 incorporates an advanced Battery Management System (BMS) to continuously manage and protect the battery during charging and discharging.

Battery protection and safety features include:

• Advanced integrated Battery Management System
• BMS voltage protection
• Electronic circuit breaker
• Intelligent current limiting
• Internal fire suppression system
• LiFePO4 battery chemistry

Hubble Cloudlink Ready

The AM4 is Hubble Cloudlink-ready, allowing compatible systems to be connected to the Hubble Cloudlink platform for remote battery and system monitoring.

Cloudlink monitoring is optional and is not integrated into the AM4 battery itself. A compatible external Hubble Cloudlink device is required where remote monitoring is desired.

Hubble Cloudlink enables remote access to battery and system information and can also assist installers and Hubble technical support with diagnostics and troubleshooting.

Inverter Communication and Compatibility

The Hubble AM4 includes CAN Bus communication for integration with compatible inverter systems.

The battery is designed for use with compatible inverters and chargers, but inverter voltage, communication compatibility and correct configuration should always be confirmed before installation.

If you are unsure whether the Hubble AM4 is compatible with your inverter, contact EcoHub with the make and model of your inverter and details of your existing system.

Wall Mount or Shelf Rack Installation

The compact Hubble AM4 can be wall mounted or installed on a suitable shelf rack, giving installers flexibility when designing smaller solar and backup systems.

At approximately 25kg and measuring just 420 × 153 × 490mm, it is considerably more compact than Hubble’s larger residential battery models.

Expandable Battery Storage

The Hubble AM4 is designed as a scalable battery storage solution.

Up to 15 AM4 battery packs can be connected in parallel with full communications, allowing additional battery capacity to be added as system requirements increase.

10-Year Hubble Warranty

The Hubble AM4 is backed by a 10-year warranty, subject to Hubble Energy’s warranty terms and conditions.

Hubble specifies an approximate 15-year design life for the AM4 when operated within the manufacturer’s recommended parameters.

Hubble AM4 Key Features

• 2.56kWh battery storage capacity
• 100Ah rated capacity
• 25.6V nominal voltage
• LiFePO4 battery cells
• 1C high-performance lithium battery
• 100A maximum continuous discharge current
• 100A maximum continuous charge current
• 30A recommended charge current
• 100% depth of discharge specification
• Advanced integrated Battery Management System
• Internal fire suppression system
• CAN Bus inverter communication
• Hubble Cloudlink-ready for optional remote monitoring
• Wall-mount or shelf-rack installation
• Parallel connection of up to 15 batteries with full communications
• Approximately 15-year design life
• 10-year warranty – terms and conditions apply

Hubble AM4 Technical Specifications

Model	Hubble AM4 Revision 3
Storage Capacity	2.56kWh
Rated Capacity	100Ah
Nominal Voltage	25.6V
Battery Chemistry	LiFePO4 (LFP)
C Rating	1C
Equalised Charge Voltage	27.6V
Maximum Continuous Charge Current	100A
Recommended Charge Current	30A
Maximum Continuous Discharge Current	100A
Depth of Discharge	100%
Communication	CAN Bus
Ports	1 × CAN Bus, 2 × Battery Link Ports
Monitoring	Optional Hubble Cloudlink
Parallel Expansion	Up to 15 battery packs with full communications
Dimensions (W × D × H)	420 × 153 × 490mm
Weight	Approx. 25kg
Installation	Wall mount or shelf rack
Charging Temperature	0°C to +55°C
Discharging Temperature	-10°C to +55°C
Storage Temperature	-10°C to +55°C
Cycle Life @ 1C	Approx. 6,000 cycles @ 50% DOD / More than 3,000 cycles @ 100% DOD
Design Life	Approx. 15 years
Certification	CE / UN38.3 / GBT31484-2015 / GBT31485-2015 / GBT31486-2015
Warranty	10 years – terms and conditions apply

Is the Hubble AM4 Suitable for Home Solar?

The Hubble AM4 is particularly well suited to smaller residential solar and backup systems using a compatible 24V-class inverter.

Its combination of 2.56kWh storage capacity, 100Ah capacity, 1C performance, LiFePO4 chemistry and compact wall-mount design makes it an attractive option where a smaller battery system is required.

For installations requiring more storage capacity, additional compatible AM4 batteries can be installed in parallel.

Frequently Asked Questions

How much storage capacity does the Hubble AM4 have?

The Hubble AM4 provides 2.56kWh of nominal battery storage, with a rated capacity of 100Ah at 25.6V.

Is the Hubble AM4 a 24V battery?

The Hubble AM4 has a 25.6V nominal voltage and is designed for compatible 24V-class battery and inverter systems.

What is the discharge current of the Hubble AM4?

The AM4 has a 1C rating and maximum continuous discharge current of 100A.

What is the maximum charging current?

The AM4 supports a maximum continuous charge current of 100A. Hubble recommends approximately 30A charging current to help prolong battery life.

Does the Hubble AM4 include Cloudlink?

No. The AM4 is Cloudlink-ready, but Cloudlink monitoring is optional rather than built into the battery. A compatible external Hubble Cloudlink device is required for remote cloud monitoring.

What battery chemistry does the Hubble AM4 use?

The Hubble AM4 uses LiFePO4 (Lithium Iron Phosphate) battery cells.

Can multiple Hubble AM4 batteries be connected together?

Yes. Up to 15 AM4 battery packs can be connected in parallel with full communications, subject to correct system design and installation.

Can the Hubble AM4 be wall mounted?

Yes. The compact AM4 can be wall mounted or installed on a suitable shelf rack.

What warranty does the Hubble AM4 have?

The Hubble AM4 carries a 10-year warranty, subject to Hubble Energy’s warranty terms and conditions.

Hubble AM4 Brochure

For full manufacturer specifications and additional technical information, download the official Hubble Energy AM4 Revision 3 brochure:

Download the Hubble AM4 Battery Brochure

Product specifications may change as part of Hubble Energy’s ongoing product development. Please contact EcoHub if you require confirmation of compatibility or specifications for a particular installation.