February 13, 2020

Subject: Product / News

Polarium certifies next generation Smart Lithium Batteries™ for US and Canada

Polarium has certified its Smart Lithium Batteries™ in accordance with UL1973 and UL62368 for the US and Canadian markets. This is one of the first, if not the first time ever that telecom lithium batteries have been certified to these standards as a stand-alone battery. Behind the certification are years of focused hard work in research, product development and innovation.

In total three NMC lithium batteries have been certified: the SLB48-050-124-1U, 19”, 2U 50 Ah battery, the SLB48-100-226-1U, a 23”, 2U 100 Ah battery  and SLB48-100-144-1U, a 19”,4U 100 Ah battery.

“We are very excited to receive these certificates which demanded extensive research, development and innovation in the design of the safety requirements to meet the rigorous UL1973 standard.  We feel it has been worth the substantial investment by our Swedish design and engineering team to reach this goal and we now look forward to servicing our exisiting and new customers in the USA and Canada”, says Stefan Jansson CEO Polarium.

With the new generation of Polarium SLB™ Products, available in versions certified to IEC and UL standards, ranging from 30 to 250 Ah, Polarium has taken leadership role in terms of safety of telecom lithium batteries. The new features include a completely redundant safety design with well over 100 single-fault cases proven safe. Additional safety features include single cell propagation prevention and ingress protection options.

In addition, the SLB™ already have a number of features highly valued by our customers, including ease of use, plug-and-play compatibility with existing rectifier systems, i.e., works with any rectifier thanks to Polariums‘s patented charge control function, Current Limiting Device (CLD™) and extensive monitoring and analytics capabilities, all which have been improved further in the new generation of SLB™

 “We are excited to release a unique, feature rich product platform that will service customers all over the world. We are especially proud of the safety design and our patented charge control feature, Current Limiting Device – CLD™ which makes our batteries independent of current control from the power system and is a feature that is highly appreciated by our customers”, continues Stefan Jansson.

For more information
Peter Wasmuth, CMO at Polarium
Phone +46 (0)706 553 973, or send your request to

About Polarium 
Polarium creates a Smart and Sustainable Future by providing safe and sustainable lithium power backup solutions to the global telecom market.

Polarium is a leader in developing advanced lithium batteries for telecom sites’ backup power. With headquarters and R&D in Sweden, manufacturing in Mexico, sales office in US and global sales channels, Polarium services telecom customers around the world. Thanks to the latest developments in battery monitoring and analysis, Polarium provides cutting-edge smart lithium power backup solutions which address both the telecom replacement market as well as new macro and small cell sites. Polarium is also the pioneer of Battery-as-a-Service®, a subscription model that offers power backup at fixed monthly cost and performance guarantee.

Polarium was prior to November 2020 known as Incell International.

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