Polarium SLB48-150-145-5 | 48V | 150Ah | Lithium-ion Battery

The Polarium SLB48-150-145-5 is a high-capacity 48 V, 150 Ah lithium-ion backup battery engineered for operators requiring dependable energy storage across telecommunications networks, hybrid power systems, industrial infrastructure, and remote environments. Built on Polarium’s fifth-generation LFP platform, this 19-inch 4U module delivers stable long-term performance with a rated energy capacity of 7.2 kWh and a durable iron-based chemistry optimised for demanding backup applications.

The battery is designed to support consistent operation in varied climates, with discharge capability down to –20 °C and charging supported from 0 °C to 55 °C. Its robust mechanical construction and IP20-rated enclosure are suited to controlled indoor installations such as telecom shelters, utility sites, control rooms, and industrial cabinets. At 58.6 kg, the unit balances high energy density with a practical form factor, allowing efficient integration into 19-inch rack systems.

A BMS-controlled 100 A circuit breaker provides protection during operation and maintenance, while integrated system supervision helps ensure safe and predictable performance over the battery’s lifecycle. The module’s electrical characteristics, including a 6 kW peak discharge capability and controlled charge profile, support reliable backup operation during grid outages, generator transitions, and renewable power fluctuations.
For added site protection, the battery incorporates Polarium’s patented Anti Theft Device, which disables the unit if it is removed from its installation location. The feature can be activated by serial number under a licence fee, providing an additional layer of security for unattended or remote sites.

With long service life, strong cycle performance, and smart system compatibility, the SLB48-150-145-5 offers a dependable, rack-optimised energy storage solution for operators seeking to upgrade or expand their backup power infrastructure.