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  • Optimized for longer backup times
  • Lithium Chemistry LFP
  • Max charge 50 A (charge control will limit without turning off) and max discharge 100 A
  • Virtually unlimited parallel operation
  • Very high energy density battery
  • Compact design in 19” mounting
  • 4U height and 560 mm dept
  • Rated Capacity 150 Ah
  • Rated Energy 7200 Wh
  • Peak Discharge Power 6Kw for 60 seconds
  • Exceptional life - 20 years or 6000 cycles at 80% DoD
  • Safe every step of the way – from transportation to implementation and maintenance.

POLARIUM SLB48-150-146-5

Product Overview

Polarium Battery is an advanced power backup system for telecom use. It's rechargeable smart lithium-ion battery provides reliable power backup for hybrid, off-grid and grid-connected telecom sites worldwide.

Optimized for longer backup times. Max charge 100 A (charge control will limit without turning off) and max discharge 100 A. Virtually unlimited parallel operation.


All our products are designed with your safety in mind - thoroughly verified and certified for safe operation.


Advanced technology made super easy to use. easy to install, maintenance free, charge control.


Works in all conditions and environments. Extra protection against dust and moisture for prolonged life.


Automatic balancing, automatic reconnect, remote monitoring options and much more.


Our unique, patented Anti-Theft Device disables function of batteries if removed from site. It’s prepared for optional GPS tracker.


The lifetime is extraordinary long. It’s small, light, maintenance free and can be remotely controlled.


Enclosure Size  19" 4U
Lithium chemistry  LFP
Rated Voltage  48 V 
Rated Capacity Ah (0.2C, 25°C to 42 V)  150 Ah 
Rated Energy Wh (0.2C, 25°C to 42 V)  7200 Wh 
Calendar Life @ 80% SOC 15 years 
Peak Discharge Power  6kW for 60 seconds
Discharge Cutoff Current 100 A 
End-of-Discharge Voltage (LVBD)** 39 V
Charge Current Limitation (CLD)* 100 A
Charge Voltage for 100% SOC 58.8 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 Approx. 74 Kg (163.1 lbs)
Dimensions mm (in")

W 440 D 577 H 173

(W 17.3” D 22.7” H 6.9”)

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 (Incell Studio) included for full local monitoring and management. Remote connection via Modbus

*If the recharge current is 100A or higher, the battery will automatically reduce the charge current to 6-12A temporarily

Data subject to change without notice

Technical Illustration

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