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Lithium-Ion Batteries

Polarium SLB48-230-146-5 | 48V | 230Ah | Lithium-ion Battery

The Polarium SLB48-230-146-5 is a high-capacity 48 V, 230 Ah lithium-ion battery engineered for critical backup applications across telecommunications networks, hybrid power systems, industrial environments, and remote infrastructure. Built on Polarium’s fifth-generation LFP platform, this 19-inch 4U module delivers 11.04 kWh of rated energy, providing extended runtime for sites requiring robust and long-duration backup power.

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Polarium SLB48-230-146-5 Lithium-ion Battery

Features

  • High-Energy LFP Storage for Extended Backup - With 230 Ah of rated capacity and 11.04 kWh of usable energy, this module provides long-duration autonomy for telecom networks, industrial control systems, and remote sites that require sustained backup during outages.
  • Long Service Life with Strong Cycle Performance - Engineered for long-term operation, the battery offers up to 6000 cycles at 100 percent depth of discharge and maintains 80 percent SOH over its life, supporting frequent cycling in hybrid power systems and renewable-assisted installations.
  • Wide Operating Temperature Range - Supports discharging from –20 °C to +60 °C and charging from 0 °C to +55 °C, ensuring dependable performance across varying Australian climates and indoor controlled environments.
  • Intelligent Battery Management System - A built-in BMS provides continuous supervision, including cell balancing, automated reconnect after safe conditions return, voltage and temperature protection, current limiting, and comprehensive alarm functions to maintain stable operation.
  • Advanced Monitoring & Communication Options - Dual RS485/RJ45 ports with Modbus support allow integration into site controllers and network management systems. Polarium Studio software is included for full local monitoring, configuration, and performance tracking.
  • Enhanced Site Security with Anti-Theft Protection - The patented Anti-Theft Device disables battery functionality if it is removed from its installed site, supporting asset protection in remote or unattended locations.
Specifications
TECHNICAL SPECIFICATIONS
Enclosure Size  19" 4U
Lithium chemistry  LFP
Rated Voltage  48 V 
Rated Capacity Ah (0.2C, 25°C to LVBD)  230 Ah 
Rated Energy Wh (0.2C, 25°C to LVBD)  11040 Wh 
Calendar Life @ 80% SOC 20 years 
Cycle Life 6000 cycles, 0.2C, 25 °C, DoD 100%, SOH 80%
Peak Discharge Power  6kW for 60 seconds
Discharge Cutoff Current 100 A 
End-of-Discharge Voltage (LVBD)* 37.5 V
Charge Current Limitation (CLD)** 100 A
Charge Voltage for 100% SOC 54.7 V
Operating Temperature Charging 0 to +55 °C (32 to 131 °F)
Operating Temperature Discharging -20 to +60 °C (-4 to 140 °F)
Operating Relative Humidity  According to ETSI 300 019-1-3 class 3.2 (0-95%)
Storage Temperature  -20 to +60°C (-4 to 140°F)
Weight 76.5 Kg (168 lbs)
Dimensions mm (in")

W 440 D 475 H 177.4 mm
(W 17.3” D 18.7” H 6.98”)
Circuit breaker 100 A, BMS Controlled, single pole
IP class  IP20
Communication Protocols RS485, RJ45 (2) ports, Modbus
Safety Standards IEC62619, IEC62368, UN38.3
Management & Monitoring  Software for PC (Studio) included for full local monitoring and management. Remote connection via Modbus
*Cut off when one cell reaches 2.5 V, 15 cells in series.
**If the charge current is 100 A or higher, the battery will automatically reduce the charge
current to 6-12 A temporarily.
Data subject to change without notice

 

Technical Illustrations
Drawing_01_SLB48-230-146-5_Lithium_ion_Battery Drawing_02_SLB48-230-146-5_Lithium_ion_Battery Drawing_03_SLB48-230-146-5_Lithium_ion_Battery
Downloads
Polarium_SLB48-230-146-5-Rev-2.1_1_Datasheet.pdf
TECHNICAL SPECIFICATIONS
Enclosure Size  19" 4U
Lithium chemistry  LFP
Rated Voltage  48 V 
Rated Capacity Ah (0.2C, 25°C to LVBD)  230 Ah 
Rated Energy Wh (0.2C, 25°C to LVBD)  11040 Wh 
Calendar Life @ 80% SOC 20 years 
Cycle Life 6000 cycles, 0.2C, 25 °C, DoD 100%, SOH 80%
Peak Discharge Power  6kW for 60 seconds
Discharge Cutoff Current 100 A 
End-of-Discharge Voltage (LVBD)* 37.5 V
Charge Current Limitation (CLD)** 100 A
Charge Voltage for 100% SOC 54.7 V
Operating Temperature Charging 0 to +55 °C (32 to 131 °F)
Operating Temperature Discharging -20 to +60 °C (-4 to 140 °F)
Operating Relative Humidity  According to ETSI 300 019-1-3 class 3.2 (0-95%)
Storage Temperature  -20 to +60°C (-4 to 140°F)
Weight 76.5 Kg (168 lbs)
Dimensions mm (in")

W 440 D 475 H 177.4 mm
(W 17.3” D 18.7” H 6.98”)
Circuit breaker 100 A, BMS Controlled, single pole
IP class  IP20
Communication Protocols RS485, RJ45 (2) ports, Modbus
Safety Standards IEC62619, IEC62368, UN38.3
Management & Monitoring  Software for PC (Studio) included for full local monitoring and management. Remote connection via Modbus
*Cut off when one cell reaches 2.5 V, 15 cells in series.
**If the charge current is 100 A or higher, the battery will automatically reduce the charge
current to 6-12 A temporarily.
Data subject to change without notice

 

Drawing_01_SLB48-230-146-5_Lithium_ion_Battery Drawing_02_SLB48-230-146-5_Lithium_ion_Battery Drawing_03_SLB48-230-146-5_Lithium_ion_Battery
Polarium_SLB48-230-146-5-Rev-2.1_1_Datasheet.pdf

Find the Right Model

Model Number Rated Voltage (Vdc) Rated Capacity (Ah) Rated Energy (Wh)
product variant SLB48-230-146-5 48Vdc 230Ah 11040Wh

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