High voltage lithium battery Fox ESS ENERGY CUBE CS2900 2.88KWH 57.6V (without BMS)

FOX ENGINE CUBE CS2900: Modular high voltage extension, wireless connection and maximum LFP durability

As the needs of electricity increase in a home or business, solar self-consumption facilities require flexible storage solutions that allow to grow cleanly and efficiently. The battery module FOX ESS ENERGY CUBE CS2900 (slave version without BMS) it is developed exclusively to fulfill this function, acting as the perfect expansion unit to be integrated into high-voltage systems of the brand and maximize the use of surplus energy produced by solar boards.

Growth tailored to your roof and safe cell technology

The differential advantage of ENERGY CUBE ecosystem lies in its advanced modularity. Being a slave module, it is connected directly below the master module (which incorporates the brain or BMS), allowing to scale the block storage capacity of 2.88kwh immediately. Its architecture uses cells with chemistry lithium Ferrophosphate (LFP), the most rigorous and safe standard of the photovoltaic sector thanks to its immunity against thermal leaks and its optimal stability in the face of thermal fluctuations and peaks of cargo.

When operating, integrating into a high voltage chain, this accumulator helps the hybrid Inverter work much more efficiently by reducing tension conversion losses. With a 98% loading and unloading efficiency and allowing a rear discharge depth of 90%, this system ensures that the energy accumulated during sunlight is available at night almost entirely, optimizing the performance of your solar kits hybrid.

Stackable design Plug & Play IP65 and long-term structural stability

The installation of traditional battery banks usually involves complex interconnection cable schemes that increase the risk of failures by ohmic resistance. Fox ESS solves this with a system of stackable assembly "Plug and Play": The modules are physically fitted above and the power and communication electrical connections are performed internally and automatically through the structure's own sockets.

Its metallic chassis has an IP65 degree of protection, isolating it completely from dust and guaranteeing a high resistance before water splashing in semi-covered environments. Thanks to the excellent manufacturing engineering of its lithium cells, this module offers a lifespan superior to the 6000 working cycles, positioning above the standard storage options of the competition. To ensure that your solar field generates the power needed to fill these quick accumulation modules, we recommend you review our specialized fastening catalog and structures for solar.

Technical characteristics:

• Model Model: ENERGY CUBE CS2900 (Slave extension module).

• Battery management (BMS): Not included (requires mandatory combination with a master module with BMS).

• Nominal energy capacity: 2.88 kWh.

• Nominal tension of the module: 57.6 V.

• Operating voltage range: 48.0 V to 66.0 V.

• Internal chemistry: Lithium ferrophosphate (LIFEPO4 / LFP).

• Depth of admitted download (DOD): 90%.

• Charging / unloading efficiency: 98%.

• Maximum load current: 45 A.

• Maximum discharge current: 45 A.

• Life cycles: Greater than 6000 cycles of operation (under nominal conditions).

• Degree of protection: IP65 (suitable for indoor installation or protected areas).

• Dimensions of the module: 570 mm wide x 350 mm background x 133 mm high.

• Structural net weight: 32.4 kg.

• Connection method: Direct vertical coupling without external cable hoses.

Frequently Asked Questions section (FAQ)

1. Can I install this Fox ESS module from 2.88kWh independently in my installation? No, this model is a slave module (CS2900) and does not include the battery management system (BMS). In order to operate, it requires it to be connected mandatory to a master battery module (cm2900) of the same series, which acts as the control and communication center with the inverter.
2. How is the connection between this module and the rest of the battery is done? It is done through a stackable physical and electric coupling system. The ENERGY CUBE range modules are placed vertically one on top of another and automatically connected thanks to the male-female connectors integrated into the chassis itself, completely eliminating the need to wire modules with each other.
3. What advantages does it provide to add this high-voltage accumulator in front of a 48V system? By adding serial slave modules, the total battery voltage rises. High voltage systems drastically reduce the current intensity necessary to move the same amount of energy, reducing heat losses in wiring and significantly improving the overall efficiency of self-consumption of housing or trade.
4. What kind of maintenance does this LFP battery need over the years? This module does not require any type of chemical maintenance, leveling of electrolytes or filled. Lithium ferrophosphate cells are fully sealed. It is only advisable to keep the chassis free of severe dust accumulations and ensure that it does not suffer extreme thermal impacts.
5. How do I know how many slave modules I can add to my current system? The maximum scalability of the system depends on the exact model of the hybrid Inverter o From the maximum voltage specifications of the Fox ESS series. We advise you to consult with our technical team to design the optimum storage settings and compatible with your inverters network.