48V 100Ah 5KWh Server Rack LiFePO4 Battery Pack

Server Rack 48V 100Ah LiFePO4 lithium Battery bank

The CMX Battery Eco 48V 100Ah Lithium Battery is a worthy high-performance, compact, and reliable power source designed for residential, commercial, and industrial energy storage applications. it features a modular 4U rack-mount design, long cycle life, and an integrated smart BMS for optimal performance.CMX Battery wholesale  Eco solar battery is Best Value model available for whole home solar and UPS system.

Key Features

5.12kWh Large Capacity

Powered by 16 A-grade lithium LiFePO4 cells in series, the battery delivers a true 51.2V nominal voltage and 5.12kWh of energy, offering stable and long-lasting power for solar energy storage systems.

Compact 4U Rack Design

With a space-saving 4U standard rack size, the CMX Battery 48V battery is up to 30% smaller than conventional batteries of the same capacity—ideal for server cabinets and limited-space environments.

Expandable Modular System

Support for up to 63 units in parallel, enabling system expansion to an impressive 322.56kWh. Perfect for scaling from residential storage to large commercial or industrial power solutions.

Advanced Built-in BMS

Equipped with a high-precision Battery Management System (BMS) that offers:

Overcharge & Over-discharge protection
Overcurrent & Short-circuit protection
Over-temperature control
Real-time cell voltage monitoring & balancing

Certified Safety and Reliability

The SR48100 meets international safety and quality standards including UL1973, IEC62619, and CEC certifications, ensuring global-grade performance, safety, and durability.

Ideal Applications

Home solar energy storage
Commercial and industrial backup systems
Off-grid and hybrid solar setups
Telecom and data center power banks

Long Life Span

Offers over 6000 cycles at 80% Depth of Discharge (DOD), with up to 10+ years of service life—reducing long-term replacement costs.

Easy Installation

Plug & Play design simplifies wiring and setup—reduces installation time and labor cost.

Wide Operating Range

Performs reliably in temperatures from -20°C to 60°C, suitable for harsh climates and diverse installation environments.

Reliable Warranty

Backed by a 5-year warranty with optional extension up to 10 years. Technical support and service available worldwide

Inverter Compatibility

Seamlessly integrates with leading inverter brands like Growatt, Deye, Victron, Goodwe, and SMA etc—ensuring hassle-free setup in most solar systems

Specification

Inquiry

If you’re looking for a 48V 100Ah rack-mounted energy storage battery with a 5KWh capacity, compact 4U design, lightweight build, and easy installation and maintenance, our EG-SR-48100-4U is the perfect choice. Whether for home use or wholesale, its outstanding quality and factory-direct pricing offer excellent value. Feel free to send us an inquiry — our sales team will get back to you promptly.

Inverter Compatibility & BMS Communication

This 48V (51.2V nominal) LiFePO4 pack communicates over CAN and RS485
(RS232 on select models) and integrates with most 48V-class hybrid and off-grid inverters.
Confirm your inverter supports a LiFePO4 charge profile and closed-loop BMS communication before commissioning.

Compatibility is listed for communication-protocol matching only. It is not an endorsement or a
certified-partnership claim. Send us your inverter model and we will verify protocol matching before shipment.

Sourcing at volume? The 48V LiFePO4 battery manufacturer page covers OEM, private-label and container terms for this range.

Also Known As

This pack is the same hardware sold under several equivalent labels: 51.2V 100Ah
(16 cells in series — the 16S1P arrangement stated on the datasheet), 48V 100Ah (the 48V
system-voltage convention used by most hybrid inverters) and 5.12 kWh / 5120Wh (the same pack
expressed as energy). Quotes are comparable only when converted to watt-hours.

Rack Format, Cabinet Fit and Enclosure Options

This 5.12 kWh platform is supplied in more than one rack height, so you can match the cabinet you already own instead of rebuilding around the battery. Every build shares the same 51.2 V (48 V) 16S1P architecture, the same LiFePO4 chemistry and the same 19-inch rack mounting pattern.

4U — the standard depth used on this page

495 × 483 × 177 mm at 45 kg, IP20, expandable to 63 units in parallel. This is the build in the specification table above and the one we ship most often for home solar, off-grid systems and small UPS rooms.

3U (136 mm) — for shallow cabinets, narrow bays and mobile builds

A 3U-high module is the compact end of the range. Choose 3U when rack height is limited and you would rather add modules horizontally than move to a taller enclosure. At 538 × 483 (442) × 136 mm and 45 kg it also suits mobile installations — concession trailers, food trucks and service vehicles — where a deeper chassis will not fit. It is rated IP20, so it belongs in an indoor cabinet or plant room rather than outdoors, and the smart BMS reports over RS485/CAN.

19-inch cabinet, server room and telecom shelter installations

The rack format is the right choice when your installation already has — or will have — a 19-inch cabinet: server rooms, telecom shelters, equipment racks and plant rooms. Modules slide in at rack height, share a common busbar and are serviced from the front. In that setting the pack usually shares the bus with a UPS, a site controller or a telecom rectifier, so the practical question is which device reads the BMS rather than whether the pack fits. We also supply the same module where a UPS string expects a 48 V LiFePO4 bank.

Anti-theft enclosure option

An anti-theft function is available as an option for sites that are publicly accessible or unattended. Tell us your site requirements and we will quote it with the enclosure.

CATL cell configuration

The same 51.2 V 100 Ah 5 kWh module is also built in a CATL-cell configuration, with automotive-grade cells and CAN / RS485 / RS232 communication, certified to CE, RoHS, UN38.3, IEC 62619 and MSDS. Specify the cell source you need when you request a quote — we hold both builds.

Scaling a Bank: Parallel Limits, Modules and Stacks

Adding capacity in practice

Connect 2, 3 or 4 units in parallel to reach 10.24 kWh, 15.36 kWh or 20.48 kWh. The modular route to a larger bank is usually cheaper than moving to one bigger enclosure, and it lets you add capacity as load grows instead of sizing for the worst case on day one.

Module as a building block

Installers and integrators can also buy the bare module and combine units into a bank sized to the site, rather than buying a fixed-capacity appliance. Optional mobile-app monitoring is available for sites that want remote state without a dedicated gateway.

Stackable low-voltage ESS builds

In the stackable low-voltage configuration the same module is stacked in a cabinet on a shared BMS bus — the usual layout when a low-voltage ESS is being retrofitted around an existing inverter instead of replacing the whole system.

OEM, Private Label and Volume Supply

This is also the supply page for buyers building the module into their own product or system rather than buying a finished appliance. Voltage, capacity, BMS, communication and enclosure are configurable, and the module ships with CE, RoHS, UN38.3, IEC 62619 and MSDS documentation for your own compliance file.

Pricing is factory-direct from Shenzhen — FOB Shenzhen as standard, with EXW, CIF and DDP available. Send your target specification, annual volume and private-label requirements and our engineers will return a quote with the downloadable datasheet.

RV, Marine and Mobile Installations

The same 5.12 kWh 48 V 100 Ah platform is supplied as a deep-cycle house battery for RV, marine and mobile-off-grid use: IP65 enclosure, 4000+ cycles at 80% DoD, charged from shore power, alternator or solar, and a smart BMS on CAN/RS485 so the inverter-charger reads state of charge directly instead of estimating it. If your project is vehicle-mounted rather than cabinet-mounted, tell us the enclosure requirement and we will quote the matching build. For traction duty on golf carts, turf vehicles and neighbourhood EVs, see the 48 V 105 Ah traction pack; for indoor wall installation, see the 48 V 100 Ah wall-mounted Powerline-5.

Rack, Stack and OEM Questions

Can this pack go into a 19-inch rack cabinet?

Yes — that is the intended mounting. Modules load at rack height on standard rails, share a common busbar and are serviced from the front. Send us the cabinet depth and we will confirm whether the 3U or the 4U build fits.

Is this the right choice if I have no rack cabinet?

If you have no cabinet and do not plan one, a wall-mounted format usually installs faster and uses no floor space. Choose the rack module when a 19-inch cabinet is already part of the design.

How many units can I connect in parallel?

The 4U build on this page is rated to 63 units. Other heights and BMS firmware revisions differ, so we confirm the final limit for your chosen build before you design the busbar.

How many units do I need for a 20 kWh system?

Four units of this 5.12 kWh module reach 20.48 kWh when paralleled — the most cost-effective way to reach that figure without moving to a larger single enclosure.

What does the warranty cover?

The 4U pack carries a 10-year warranty; cycle life is rated above 6000 cycles at 25°C under standard conditions. Deeper discharge and higher operating temperature reduce the achievable cycle count. Warranty terms vary by build — confirm them on your quotation.

What does the anti-theft option cover?

It is an optional function on this model, quoted together with the enclosure. Tell us your site requirements and we will specify it.

Can I buy this module for my own product or brand?

Yes. Voltage, capacity, BMS, communication and enclosure are configurable, and the module is available under OEM and private-label programmes with the compliance documentation your market requires.

Verify Compatibility for Your Project

Send us your inverter model, target capacity and annual volume — our engineers will confirm protocol
matching and return a quote within 24 hours.