Lithium-Ion UPS Systems
Lithium-Ion UPS Systems

Lithium-Ion UPS Systems. From Top: Eaton 1550 (1550VA), N1 Critical L-Series UPS (1-3 kVA), Samsung Lithium-Ion Three-Phase Battery Cabinet.

Designers and developers of commercial and industrial buildings now have longer-lasting backup power solutions available from N1 Critical Technologies that are suitable for the whole building or select mission critical equipment.

N1 Critical Technologies sales engineers specialize in designing, installing and maintaining uninterruptible power supply (UPS) systems using the latest, powerful, long-lasting lithium-ion batteries from several manufacturers.

The company’s technical advisors have access to the very best UPS makes and models available (from Eaton, GE and others) and come with more than 40 years of combined experience in developing industrial UPS systems, commercial UPS systems, UPS systems for server rooms, and whole-building UPS systems.

In addition to designing and installing large-scale, three-phase lithium-ion UPS systems, N1C was the first U.S. company to manufacture and offer a full line of single-phase lithium-based UPS systems for smaller applications, such as server racks, network closets and point-of-sale systems.

Whether needs are high power for a building-wide application, or low power for several pieces of critical equipment, the lithium-ion batteries used in N1C-branded and other designed systems have tremendous benefits.

They offer more energy capacity in a significantly smaller space, are lighter and come with a smaller carbon footprint than traditional lead acid UPS systems. Perhaps most importantly, lithium-ion batteries have both a longer shelf life and a longer backup runtime, which lowers overall cost of ownership for the UPS and powers and protects connected equipment for longer durations during power outages.

“As a team, we have an intimate knowledge of the specifications, capabilities, and service histories of the entire range of lithium-ion UPS products and systems available in the market,” said company co-founder and CEO Nate Ellsworth. “We leverage our practical experience and expertise when designing high-quality power backup systems to give customers the longest lasting, most affordable option available that will save them money, time and hassle over the long run.

“You will find our own single-phase UPS systems and large-scale lithium-ion UPS systems we designed in facilities of all types and sizes. People are starting to realize the many benefits of lithium-ion battery technology and we’re at the forefront of the shift in the marketplace toward the technology. N1C is truly disrupting the uninterruptible power supply industry.”

Clientele for N1 Critical has included data centers, financial institutions, medical clinics, hospitals, office complexes, call centers, telecom centers, universities, school systems, television and radio stations, marine shipboard applications and many others.

“As experts, we help you in bridging the gap between the articulated needs of your IT professionals and the economic constraints of efficiently running your business,” Ellsworth said. “We do this by advising you on how you can meet and even exceed the technical requirements that IT professionals desire and we do it most cost-effectively. Lithium-ion may cost a little more up front, but when you see the savings in money, maintenance and power saving over time, it becomes a no-brainer to make the switch to lithium-ion UPS systems.”

In the ideal conditions, the average life span of a lead acid UPS battery is 4-6 years. In comparison, the lifespan of lithium-ion battery is 10-15 years, and they can withstand even harsher operating environments without performance degradation.

That means less cooling requirements and fewer batter replacements over the life of the unit, reducing the burden of downtime and maintenance.

Lithium-ion batteries can also handle more than 1,000 discharges and recharges, more than triple what a lead acid battery can handle. A lighter and smaller battery also makes installation easier and versatile. Some customers may even regain valuable space in their server room or data closet with significantly smaller lithium-ion battery cabinets.

No matter your power needs, N1 Critical Technologies can design a lithium-ion Uninterruptible Power Supply solution for you!


Contact Information

Call For A Free Quote: 855-208-0011

Shop Online at or email us at

For service, call: 877-226-3311

Get A Free Quote

Matt Winter and his mom Rene.

N1 Critical Technologies will host its new headquarters grand opening and ribbon cutting ceremony from 4-8 p.m., Thursday, July 19. But it won’t be any ordinary ribbon cutting. We’re also hosting a Casino Night Fundraiser for an amazing cause. Here’s the story of why we’re doing what we’re doing…


Homebound or hospitalized kids will keep connected by using remote control robots in their schools

Matt Winter was just 13 when he lost his battle with Ewing’s sarcoma, a very rare type of cancerous tumor that grows in bones and surrounding soft tissues.

Diagnosed in May 2014, Matt won the first round of 22 chemotherapy treatments, but had his entire Tibia removed. That’s where the cancer had started.

He was a year into remission when the cancer had come back. It was May 2017, the end of his 7th grade year. Doctors gave him two weeks. He fought hard, and battled the spreading cancer until he passed Nov. 12, 2017.

Matt never got the chance to make it into the 8th grade at JC McKenna Middle School in Evansville. He was bedridden. In a hospital. Far from friends. Isolated. Feeling alone.

“He lost touch with a lot of kids, a lot of his friends, when he was sick,” said his mom Rene Wieloch.

Telepresence Robot

After Matt passed, Max Ellsworth, one of his best friends — one he never lost touch with — had an idea. Max’s dad Nate, the CEO of N1 Critical Technologies, had bought a web-remote-controlled Telepresence robot to drive around the office and have fun “peeking” in on his co-workers down the hall.

Max said that if his buddy Matt had one of the mobile robots, he could have still experienced school, at least by seeing and conversing with his friends, classmates and teachers via two-way video conferencing on the robot’s attached iPad.

“Matt was really into technology,” Rene said. “He would have loved that.”

Nate quickly realized Max was onto something.

“It was a great idea, and I knew students could get much more practical use out of the robot than I ever could around the office,” Nate Ellsworth, the company’s co-founder, said. “There is so much value in allowing homebound students to be able to connect with their classmates and teachers and at least have some sense of normalcy during difficult situations.”

The robot soon found new life at Edison Middle School in Janesville, where it is intended to serve homebound students in the same way Matt would have enjoyed if he had the chance. (See story about the donation in the Janesville Gazette.)

N1C’s Casino Night Fundraiser will support the purchase of additional telepresence robots to be donated to area schools in Matt’s name.

“When he was undergoing chemo, he was really homesick. The robot would have been very beneficial to him to be at the hospital to be able to keep up with his friends and his schoolwork,” Rene said.

Donations made by grand opening attendees who are playing the casino games or buying raffle tickets outright will support schools and support kids going through the toughest of times with the hopes of making their situations and their lives a little bit better.

Proceeds will also support the newly-created Winter’s Soldier Foundation, which was set up by Matt’s mom, Rene Wieloch. The Winter’s Soldier Foundation supports the purchase of technology — movies, videogames, computers, etc. — for homebound or hospitalized students so they can have something to remain engaged and entertained while receiving treatments.

The grand opening, ribbon cutting, and fundraiser is a Forward Janesville Business After 5 event. For full event details, click here.


The crew at N1 Critical Technologies, a manufacturer and seller of Lithium-Ion uninterruptible power supply systems — has settled into its new office in downtown Janesville. The 8,000-square-foot facility, formerly a regional office for the American Red Cross, has been renovated from top to bottom, inside and out, fulfilling the dreams of co-founders Nate Ellsworth (CEO and National Sales Director) and David Farrell (Chief Financial Officer). Come see for yourself at our open house on Thursday, July 19!

Our new N1 Critical Lithium-Ion UPS systems have arrived, were installed and are working perfectly. So what do you do with the old lead-acid UPS system you’ve replaced? Find out about recycling options for your old equipment.

Eaton Power Xpert 9395 with Samsung Lithium Ion Battery CabinetsCritical systems require a powerful battery backup solution that will ensure uninterruptible power supply. Let our sales engineers design a large cabinet lithium-ion UPS system that is a long-lasting and suitable solution for all commercial sectors.

One of the greatest challenges for businesses and industries today is maintaining a constant energy supply to keep their operations up and running 24-hours a day. With operations shifting to the digital platform, more companies are dependent on running a number of computer-aided machines, which need constant electrical energy. Industrial sectors such as data centers, telecommunication companies, healthcare facilities, government agencies, and the finance sector have been the greatest seekers of alternative solutions to mainstream connections.

Modern advancements in energy storage technologies are rapidly revolutionizing the perception and adaptation of uninterruptible power supply systems as better options are introduced to the market. Unlike the past when companies had to resort to the highly unreliable lead-acid based systems as their battery backup, lithium-ion solutions in large cabinet UPS systems are reversing the norm.

Different from their predecessors, lithium-ion batteries come designed to complement any modern system without any hassles. These UPS systems are available in a number of models, with each having unique features, power capability and battery capacity for a specified application. You no longer have to resort to the one-size-fits-all option, which was more typical of lead-acid batteries.

IT and facilities professionals who are after plenty of performance and a robust system can contact N1 Critical Technologies to have large cabinet UPS solutions designed with lithium-ion batteries. They are the ultimate solution for industries that are after powerful systems, which will support all their operations without any glitches. Lithium-ion large cabinet solutions are three-phase systems, making them ideal for maintaining substantial energy requirements of vital systems.


Advantages of large cabinet lithium-ion systems

  • Lower total costs of ownership: Given the required maintenance and replacement of lead acid battery systems, you stand to save much more over time from purchasing a single large cabinet lithium-ion system.
  • Longer life expectancy: Lithium-ion batteries are designed to last about 15 years, giving such large cabinet systems longer lifespan for continuous long-term use.
  • Safety and reliability: Large cabinet lithium-ion systems are specially designed to guarantee a constant flow of energy from a connected system of batteries. Lithium-ion is also heat tolerant, and can operate without performance degradation up to 140º. That means your batteries last, even if your AC units don’t.
  • Reduced maintenance costs: Right from the installation to maintenance, large cabinet lithium-ion systems require little or no extra special technical attention. Advanced models come with an LCD touch screen displays, which provide all relevant information concerning the system.
  • Smaller spaces, lighter materials: Lithium-ion batteries provide more energy in a smaller space than lead acid batteries of the same runtime. This reduces space needs and can even save on structural strength improvements that may be needed when installing heavy lead acid systems.
  • More charge cycles: Lithium-ion batteries are outstanding have higher charge cycle counts and take shorter time to charge back to full capacity, reducing energy costs and prolonging the life of the battery system.

N1 Critical Technologies is a making a huge difference in business operations through its state-of-the-art power backup solutions.

Located in Janesville, Wisconsin, the tech-savvy company has been able to come up with an impressive line of battery backup systems and has managed to work with a variety of clients from various industries, large and small.

Among the industries N1C sales engineers have served are financial institutions, hospitals, call centers, medical centers, universities, school systems, and telecom and datacenters, among others. The company is made up of an experienced team of technical advisors known for their expertise in designing UPS systems, whole-building UPS systems, UPS systems for server rooms, and commercial UPS systems.

Dedicated to ensuring clients get only the best, N1C’s sales engineers provide customized solutions to meet the specific needs of a particular business.

“When looking to get a UPS system for your facility, it’s vital that you take a ton of factors into consideration so you get a system that will serve all your power backup needs adequately,” said Jeff Hansing, Vice President of Sales. “Our sales engineers know what questions to ask so you get the right setup to best serve your needs and keep your costs low.”

As customers look for a proper UPS system, they should consider what devices will connect the UPS to and how much power each needs so the system can provide adequate backup in case of a power loss.

Sales engineers can also help clients determine adequate backup runtime and the type of UPS needed.

“At N1 Critical Technologies, we’ll work with you to ensure that you get the best system for your facility and you don’t have to worry about factoring all these elements, as we’ll help you throughout the process,” Hansing said.

N1 Critical Technologies has, over the years, been known to dominate the field of datacenter backup power supply using lithium-ion. It’s tough to beat the benefits lithium-ion UPS systems have to offer — smaller footprint, lifespan, charging and recharging efficiency, high power density, heat tolerance and being more environmentally friendly than the competition. The company’s UPS systems are recognized for their high-performance and users can always expect the best when they use them.

N1 Critical’s UPS solutions are developed with the latest technology in the market, ensuring clients get to experience high-performance with the piece-of-mind of having a 10-year battery warranty.

For more details on N1 Critical lithium-ion UPS systems visit:

About N1 Critical Technologies

N1 Critical Technologies is a renowned supplier of top-quality UPS systems suitable for varying applications. They provide the best services and offer unmatched prices on all their products.

Contact Details

Company Name: N1 Critical Technologies

2949 Venture Drive, Dock 190

Janesville, WI 53546

Sales: (855) 208-0011

Service: (877) 226-3311


NE-Series 3-Phase Lithium-Ion UPS

NE-Series 3-Phase Lithium-Ion UPSN1 Critical Technologies ( has announced the launch of all new three-phase Lithium-Ion-based uninterruptible power supply (UPS) systems, becoming one of the first companies in North America to offer such a product.

The Janesville, Wisconsin-based manufacturer anticipates introducing the new NE-Series 20 kVA and 30 kVA units in the second quarter of 2018.

These are the higher-capacity “big brother” to N1C’s state-of-the-art lithium-based single-phase UPS models launched earlier this year. They use stable and safe “Lithium Iron” battery chemistry, often called “LiFePO4” (lithium-iron phosphate).

With a single internal battery, the three-phase units in the NE-Series feature run times of up to 13 minutes at 100-percent load in the 20 kVA models and up to 8 minutes in the 30 kVA models.



The new NE-Series models — and the 13 models that make up the N1C L-Series and XL-Series single-phase units — use battery chemistry that is safety-tested, stable and provides superior thermal operation, allowing the UPS systems to run efficiently in more extreme environments (32º to 140º vs. 32º to 104º for comparable lead acid systems).

All N1C UPS models offer online, double-conversion technology, delivering a pure and steady stream of clean power, even during blackouts, brownouts, spikes, surges, and sags.

Both NE-Series three-phase units also features an upgraded “P” model, which offers advanced no-master-slave parallel technology for additional installation and configuration options.

Monitor and control the units via an intuitive touchscreen LED display or with included software.

With a 10-year to 15-year expected operational life, they last up to three-times as long as the Valve Regulated Lead (VRLA) batteries they are designed to replace, and weigh less, increasing installation options and ease.

The NE-Series is backed by N1C’s industry-leading lifetime electronics warranty and 10-year battery warranty. If a UPS fails under the warranty­, simply let N1 Critical Technologies know and a new unit is sent directly to the customer.

“We’re excited to increase our lineup of UPS systems with the introduction of the new NE-Series three-phase models,” said N1 Critical founder and Chief Executive Officer Nate Ellsworth. “With prices less than $25,000, this series serves a niche in the market for customers who have high-power backup needs but don’t want to break the bank, or who don’t have the space for much larger 3-phase units.”

Ellsworth is confident the NE-Series can compete with and exceed other manufacturers’ offerings, especially since it’s one of the first all-in-one three-phase lithium-ion UPS systems on the market.

“I believe we make the best lithium-ion UPS systems available today, ones that will save buyers time, money and hassle from day one after installing our systems,” Ellsworth said. “We have the best warranty in the industry, our products are easy to install and maintain and they for sure don’t need the ongoing battery maintenance and replacement as our competitor’s antiquated lead-acid systems.”

For more information, or to pre-order, visit or call (855) 208-0011.


About N1 Critical Technologies

N1 Critical Technologies is a leading manufacturer and supplier of uninterruptible power backup systems based in Janesville, Wisconsin. In addition to making its own lineup of N1C-branded products, the company specializes in distributing Eaton UPS, Xtreme Power UPS, GE UPS, generator systems, PDI PDUs, Eaton PDUs, Eaton ePDU strips, lighting inverters, UPS and battery service, Lithium-ion UPS systems, UPS and IT rack manufacturing and battery monitoring systems.

Company details

N1 Critical Technologies

2949 Venture Drive

Janesville, WI 53546

Phone:  (855) 208-0011


Web:  •

Everyone’s always on the look out for something better, either to make our lives efficient or a lot more convenient. Whichever side you’re on, if you’re looking for a lost-cost solution that checks all the boxes on your UPS wish list, you’ve come to the right spot.

You’ll be amazed to know that Lithium-Ion UPS rack-mount and tower-mount systems like ours work as a brilliant battery replacement for antiquated uninterruptible power supply systems.


Why opt for such battery replacements?

With more than twice the battery life in comparison to the aforementioned antiquated lead-acid UPS systems, you know that you’ll see a return on your investment when purchasing a Lithium-Ion UPS system. Our batteries have a 15-year design life and 10-year replacement warranty. Lead-acid systems need regular maintenance and replacement after about 4-5 years.


What makes Lithium Ion UPS Systems so special?

Unlike lead acid batteries, Li-Ion batteries work in the harshest conditions. They are less sensitive to high temperatures, giving you more flexibility for installation. There’s also opportunities for cost-savings by not having to install or configure HVAC systems to the degree you would need to with lead-acid batteries. A few other benefits include: you could expect to be dealing with little weight and a longer replacement cycle. The shelf life of the battery could go up to a good eight years and you could also expect to charge up the battery from a zero to a ninety percent within four-hours.


Our Lithium-Ion UPS Systems also offer the following features:

Life-Cycle: Lithium-Ion batteries have a longer life cycle than lead acid, leading to fewer replacements and less maintenance.

Safety: Our battery packs offer an on-board management system. This helps scan its charging cycle, battery life and temperature. The battery chemistry is also Lithium-Iron Phosphate (LifePo4), which is the safest of lithium-ion battery chemistries.

Flexibility and Efficiency: Expect a faster recharge time (up to 6x vs. lead batteries) with a better runtime.

Installation: With lighter weight, you can mount our systems conveniently in IT racks or as towers, leading to quicker deployment.

Performance: With little maintenance and longer lifespan, Lithium-Ion UPS Systems allow you more-or-less ‘set it and forget it.’

Warranty: If you invest in our systems, you get a limited lifetime warranty on electronic components and a 10-year warranty on the Lithium-Ion battery pack.

Environmentally friendly: You’ll simply be doing nature a favor by making an investment in this battery pack; less mining and less waste as it relates to the batteries.

Interface: With an exciting, interactive graphical LCD interface, you are able to view your power and load consumption, as well as customize various UPS settings.

Included Options: SNMP network cards come standard with our UPS systems. We also include rail kits for mounting on IT-racks, and feet to use the UPS as a tower-mount system.

Integration: Our UPS systems come with a powerful software suite, allowing you to monitor and manage up to 1,000 connected UPS devices on the network.



Get your new UPS system through a trusted source — direct from the manufacturer and our online store:


N1 Critical Technologies is putting a new charge in the backup electrical power industry with the introduction of its all new Lithium Ion-based uninterruptible power supply (UPS) systems.

The Janesville, Wisconsin-based manufacturer has developed a growing set of UPS systems rated from 1KVA to 10KVA, which have expandable run-times of 12+ hours with additional battery packs.

The 13 models that make up the new L-Series and XL-Series use reliable and safety-tested batteries made with Lithium Iron Phosphate. N1 Critical’s battery chemistry is safer, more stable and provides superior thermal operation, allowing its UPS systems to run efficiently in more extreme environments (32º-140º vs. 32º to 104º for comparable lead acid systems).

With a 10-15-year expected operational life, they last up to three-times as long as the Valve Regulated Lead (VRLA) batteries they are designed to replace, while also using less space, energy and weighing 33 percent less.

“Lead acid-based UPS systems are on the way out, while Lithium Ion systems like ours are the future of backup power supplies,” said N1 Critical founder and Chief Executive Officer Nate Ellsworth. “The benefits of our products are many. They will save companies time, money and hassle from day one after the installation of our systems.”

Additionally, the batteries used in N1 Critical’s products can be discharged more than 1,000 times (vs about 400 discharges for lead-based batteries), while also recharging faster and more efficiently.

“Anyone installing our battery backup systems will appreciate their lighter weight and smaller footprint,” Ellsworth said, noting that the extra space gained from removing older and larger backup systems can be used for other critical building infrastructure. “Installers and users will also appreciate the lower energy use and longer run-times in the event of a power failure.”

Each model in both the L- and XL-Series features online double-conversion technology, which delivers a “clean” and steady supply of voltage to the appliances attached to the UPS, which is critical for sensitive (and often very expensive) equipment.

The models can be both rack- or tower-mounted, and all come standard with SNMP network interface cards and software to manage them remotely. Each has been ETL certified and independently tested to UL standards.

Perhaps best of all is the limited lifetime warranty on all electronic components and a 10-year warranty on batteries in the L- and XL-Series Lithium Ion UPS Systems. If a UPS fails, simply let N1 Critical Technologies know and a new unit will be on its way.

“With our competitive price-point, feature-rich units and wide selection, you simply cannot go wrong choosing an N1 Critical Technologies UPS product,” Ellsworth said. “These aren’t just going to be a game changer. They’re going to be an industry changer. The next generation of UPS systems are here now and are available from N1 Critical.”


About N1 Critical Technologies

N1 Critical Technologies is a leading manufacturer and supplier of uninterruptible power backup systems based in Janesville, Wisconsin. In addition to making its own lineup of N1C products, company specializes in Eaton UPS, Xtreme Power UPS, GE UPS, generator systems, PDI PDUs, Eaton PDUs, Eaton ePDU strips, lighting inverters, UPS and battery service, Lithium-ion UPS systems, UPS and IT rack manufacturing and battery monitoring systems.

Company details

N1 Critical Technologies

2949 Venture Drive

Janesville, WI 53546

Phone:  (855) 208-0011


N1C’s Lithium Website: