Li-ion battery-powered uninterruptible power supplies (UPS)

The main function of UPS is to provide an accident-free shutdown of the equipment in case of a power failure or emergency power supply during a start of a backup generator. To provide the same system characteristics with a short backup time, LIB's required capacity can be half as big as LAB's.

Provide an accident-free shutdown

Problems and solutions


  • Power outages

  • Low charge efficiency of lead-acid batteries - 65-85%

  • High self-discharge rate (up to 15% per month)


  • Instant switch to battery power when the mains voltage disappears

  • High efficiency of LIB - 93-95%

  • Low self-discharge rate (on average, 3% per month)


  • Accelerated LAB degradation --> frequent battery replacement (on average, once every 3 years)

  • Low energy density in LAB --> high mass and large dimensions --> need for work areas

  • LAB require maintenance and staff


  • Increasing LIB replacement period by 3-4 times

  • Reduced floor space requirement

  • Saving on maintenance and staff


  • Charging of acid batteries takes 8-10 hours

  • Inefficient monitoring of battery condition during operation


  • Accelerated charging of LIB is 2-3 hours

  • A built-in control system (BMS) that monitors the status of each element's parameters and can transmit results to the control room

UPS infographics

20 years
battery life without replacement
charge/discharge cycles
2-3 hours
charging time of a Li-ion battery

300 WH/kg
maximum LIB energy density
battery efficiency
self-discharge rate per month

tightness of LIB


for switching from LAB to LIB

Current parameters of working with LAB

Reservation time (min.)
UPS service life (years)
Power factor
Load power (kW)
Rated load voltage (V)

The calculation is based on average market prices for LAB and LIB, established by LLC RENERA, in the course research in 2020 year, based on average calculated indicators maintenance of batteries and charging room in 2020 according to experience of partners LLC RENERA, and also based on the average annual rate inflation and euro rate in for October 2020 year.

The calculation is for informational purposes only and may differ depending on from battery parameters and conditions of their operation.

Power: from 5 to 300 kW
Capacity: 60 to 700 Ah
Charging efficiency: 90% and more
Double conversion (online UPS): the switching time is 0 ms
Cooling: forced air-cooling
Design: modular / cabinet / container
Type of climate version: UHL4/U1
Shell protection class: IP00 to IP55
Perfect for information and telecommunications applications: data centers, servers, communication and television equipment, medical equipment
Инфографика ИБП

Individual approach

We are ready to develop a custom-tailored solution for each client and offer a flexible list of specifications for your project. You can choose the dimensions, charging and running time, and other specifications.


We also offer cooperation throughout the entire project life cycle — from energy audit to technical support, as well as beneficial financial cooperation.



Our managers will be glad to answer your questions regarding purchase and cooperation.

Contact us

Our staff will help you select equipment and calculate the price based on your requirements.

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