Lithiumod™ low voltage battery modules

For smart telecom, solar and server back-up

Rack-mountable, hot-swappable, fully protected, Li-ion battery module.

Expandable into a massively parallel, remotely operable, battery rack system.


Designed for systems with a 48 V bus.

  • Telecom back-up (e.g.: cell phone towers)
  • Solar (e.g.: Photo-voltaic installations)
  • Computer server rooms (centralized or in individual racks)
  • House power
Lithiumod rack Click picture to enlarge
Ruggedized, protected, portable batteries

back to top Single module


  • Standard, off-the-shelf
  • Inherently safer LiFePO4 cells
  • Current, voltage, temperature protection
  • Safely reconnects to bus, Hot-swap safe
  • Loss of isolation detection
  • Rack mounted
  • Redundant: two independent BMSs


  • Autonomous, standalone
  • Solid state protection switches
  • High power DC-DC converter
  • Balancing, SOC, SOH
  • USB port for monitoring and control
  • Lithiumod bus for expansion
Lithiumod module
Lithiumod module

back to top Multiple modules in parallel

Multiple modules may be connected in parallel (not in series), and operate either in autonomously or in a coordinated mode.

Multiple autonomous modules

  • Any number of modules may be connected in parallel
  • Each module connects safely to the bus without current surges due to SOC differences
Low voltage Lithiumod block diagram
Massively parallel battery system
using autonomous modules

Multiple coordinated modules

  • A Rack Master coordinates battery modules, communicates with the external system
  • Up to 127 modules may be connected in parallel
  • Graphic User Interface (Windows) for control and monitoring
  • Uses two redundant links: CAN bus plus analog chain
Low voltage Lithiumod block diagram
Coordinated, massively parallel
battery system

back to top Selection

Model Voltage Brochure General specifications
battery module
48 V PDF brochure
  • 40~54.4 Vdc
  • 5.2 kWh, 280 Apk, 14 kWpk
  • LiFePO4 Li-ion cells
  • Includes dual, redundant BMS
  • Full protection with integral solid state switches
  • DC-DC converter for equalization before parallel connection
  • USB available for configuration and testing
  • Able to operate autonomously, in standalone mode
  • Safely connects to a common bus without current surges due to voltage difference
Rack Master
12~60 V PDF brochure
  • Handles 1 to 127 Lithiumod battery modules
  • Communicates with external system (CAN bus plus analog chain)
  • USB available for configuration and testing
  • Isolated inputs and outputs to control external equipment


  • 3 kW charger (one per module)


In this page:
Single module
Multiple modules in parallel
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