Lithium-Ion Batteries

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

Name: Polarium SLB48-230-146-5 | 48V 230Ah Lithium-ion Battery
Brand: Powerbox
SKU: SLB48-230-146-5
Availability: InStock

The Polarium SLB48-230-146-5 is a 48V, 230Ah lithium-ion battery module engineered for critical backup and energy storage applications across telecommunications, industrial, and remote infrastructure environments. Built on Polarium's fifth-generation iron-based lithium-ion platform, this 19-inch 4U rack-mount unit delivers 11.04kWh of rated ener...

Designed for longevity, the Polarium SLB48-230-146-5 provides up to 6,000 charge-discharge cycles at 100% depth of discharge (0.2C, 25°C, to 80% state of health), with a 20-year calendar life at 80% state of charge. Its iron-based cell chemistry supports stable performance under frequent cycling and varying load conditions, making it well suited to hybrid power systems incorporating solar, generator, and grid-assisted operation.

The battery operates across a wide thermal envelope, supporting discharge from -20°C to +60°C and charging from 0°C to +55°C. At 76.5kg, the module fits standard 19-inch rack infrastructure and carries an IP20 ingress protection rating, suitable for telecom shelters and other indoor installations. The unit is certified to IEC62619, IEC62368, and UN38.3.

Electrical performance is managed by an integrated battery management system (BMS) with a 100A circuit breaker and 6kW peak discharge capability for up to 60 seconds, supporting transient load handling during grid outages or switchover events. RS485 and dual RJ45 communication ports with Modbus protocol support enable integration with site controllers and network management platforms. The included Studio PC software provides local monitoring, configuration, and performance tracking, with remote connection available via Modbus.

For sites requiring enhanced physical security, the Polarium SLB48-230-146-5 includes the patented Anti-Theft Device, which disables battery function if the unit is removed from its installed location. The unit is also prepared for an optional GPS tracker.

Powerbox Australia provides local engineering support for Polarium energy storage products, including system design assistance, product selection, and technical consultation for telecom, industrial, and renewable energy applications.

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Polarium SLB48-230-146-5 48V 230Ah lithium-ion battery module

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 Drawings

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

Warranty & Returns

Warranty periods vary by product. Please refer to the Powerbox Warranty Policy for the applicable coverage period against manufacturing defects from date of purchase. For returns and RMA requests, please visit our RMA support page or contact our support team directly.

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

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

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