Rack-mounted LiFePO4 shelves are how you scale past a wall box — EGbatt builds modular 48V units you stack in a cabinet to 30 kWh and beyond, for serious home or small C&I storage.

Overview

Rack-mounted batteries put standardized 48V (51.2V) LiFePO4 modules on a shelf in a cabinet, so capacity grows by adding a tray rather than bolting another wall box. EGbatt builds them for homes that want 20–30+ kWh and for small C&I sites; the modules are the same 5.12kWh building blocks we use elsewhere, validated for IR balance so a stack stays predictable. Rack form shines when you outgrow wall space or want serviceability — a single tray swaps without disturbing the rest.

Key specifications

SpecificationValueWhy it matters Voltage48V (51.2V) modulesSame block as wall units. CapacityScale per tray to 30+ kWhModular shelves. FormRack/cabinet, IP65Server-style or battery cabinet. BMSPer-module + system commsCAN/RS485. ServiceabilityTray-level swapOne tray services without disturbing others.

Typical applications

  • High-usage homes: 20–30+ kWh daily.
  • Small C&I: Backroom rack banks.
  • Expandable retrofits: Add trays as needs grow.
  • Off-grid cabins: Large bank in a cabinet.

How to specify & buying guide

  • Choose a rack or cabinet rated for the tray count and weight you plan to reach.
  • Parallel identical modules with equal cabling; the system BMS should see each tray.
  • Match the inverter's 48V range and current limit to the stacked capacity.
  • Plan ventilation/clearance per the enclosure's IP and thermal rating.

Engineering & manufacturing at EGbatt

Residential systems are built around a 48V (51.2V) LiFePO4 core with a hybrid inverter interface, backup transfer and safe indoor/outdoor enclosure. We size for daily cycling and backup autonomy, and document the system for IEC62619 and UL9540A so your installers can pass inspection.

Certifications & compliance

  • UN38.3 — Mandatory lithium battery transport test (altitude, thermal, vibration, shock, external short). Required for any cross-border shipment.
  • IEC62619 — International safety standard for industrial Li-ion cells and batteries; expected by EU and most APAC buyers.
  • UL1973 — North American safety standard for stationary lithium battery systems.
  • CE — EU declaration of conformity for the applicable directives.
  • RoHS — Restriction of hazardous substances in the battery and BMS.
  • IP65 — Dust-tight and low-pressure water-jet resistant — suitable for outdoor enclosures.

Frequently asked questions

How much can a rack hold?

As many trays as the cabinet rating allows — commonly 30+ kWh in a single cabinet.

Is it better than wall-mounted?

For capacity and serviceability yes; for space-saving, wall units win. Pick by kWh and room.

Can I mix old and new trays?

Only identical modules (same Ah, firmware); mixing ages causes imbalance.

What inverter pairs with it?

Any 48V hybrid or off-grid inverter covering the 51.2V LFP window and current.

Related products & resources

  • Wall-Mounted Batteries
  • 51.2V 100Ah Module
  • C&I Energy Storage

More in this series

  • Residential Energy Storage Systems
  • Wall-Mounted LiFePO4 Batteries
  • 10kWh Solar Battery
  • All-in-One Home Energy Storage Systems

Request a quote

Send us your voltage, capacity, dimensions, certification target and annual volume. Our engineering team returns a proposal within three working days. Start your RFQ or review our custom pack capabilities.

Request a LiFePO4 quote

Tell us your product, volume and specs — our engineering team returns a proposal within three working days.

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