Supercapacitor UPS


True On-Line UPS

State of the art maintenance free, battery-less, double conversion UPS. The most ‘Green’ of all UPS technologies offers numerous advantages over conventional UPS’s.


Marathon Power is pleased to announce its first battery-less Uninterruptible Power System. It is a state-of-the-art, double-conversion “UPS” that uses Supercapacitor technology for energy storage instead of conventional batteries.

The system is designed to provide short-term backup to sensitive loads in applications that either need to ride-through voltage sags and momentary power outages or simply bridge the startup of a generator.

Since most power interruptions (87%) last no more than 1 second according to the Electric Power research Institute, there is seldom a need for long-term storage technology such as batteries. It is targeted specifically at applications that are sensitive to power disturbances that last from a few cycles to around one minute.

This most ‘Green’ of all UPS technologies offers numerous advantages over conventional UPS’s and other energy storage technologies such as flywheels and fuel cells. There is no battery replacement, system maintenance, hazard waste disposal or component recycling.

The system consists of 2 parts – the UPS Electronics module and the Energy Storage module.

The Electronics module is configured as a true-online double conversion UPS. This topology is ideal for the most critical applications where the best level of power protection is required. Connected equipment is not only immune to the slightest power fluctuations, but also other power anomalies such as spikes, surges, sags, swells, harmonics and frequency variations.

The unit features a wide input voltage tolerance, tight output voltage regulation and very low harmonic distortion. Twin microprocessors aid redundancy and an automatic bypass switch ensures that power to the load is not interrupted in the event of a system fault.

The Energy Storage module is a self-contained unit that consists of the Supercapacitors and their associated electronics. The module can be charged independently of the system.

The first model in the lineup is a 3000VA, 2100 Watt model at either 120V or 230V and a backup time of 15 seconds at full load and 45 seconds at half load. Recharge time is approximately 2 minutes but can be reduced with a suitable AC source. Other run times are available using additional energy storage modules or different Supercapacitor combinations.

The system features a user-friendly, multifunction LCD control panel that indicates the status of the system and allows the user to make parameter adjustments. Communication options include power-monitoring & system management software and SNMP capability.

One of the key applications is in healthcare where critical loads in this environment need support during the startup of an emergency generator. Another primary application is in the industrial automation market where relatively short holdup times will allow a process to continue uninterrupted. An example of this is the semiconductor fabrication industry where manufacturing equipment is required to meet semi F47 ride-through standards.

Features & Benefits

• Green, maintenance-free energy storage
• User-friendly, modular component system
• Lighter than other technologies
• Superior power density over batteries
• Highly efficient infrastructure
• Virtually unlimited cycle life
• Relatively short recharge times
• Double conversion, true online topology
• True sine-wave output
• Multi-function LCD display
• Input power factor correction
• Super Capacitor cell balancing circuitry
• SNMP capable (network manageable)
• 50/60Hz frequency auto-sensing
• Overload, short-circuit and fault protection
• Visual indicators & programmable alarms
• AC surge protection and noise filtering
• Industry-leading warranty
• Lower long-term operating costs



Rated Capacity and Power
3kVA / 2100W

Voltage and Tolerance
Single phase 120V, 80~160V at 70~100% load
70~160V at 50~70% load, 60~160V at 0~50% load
50Hz or 60Hz +/- 4Hz
Power Factor
Voltage and Frequency
Single phase 120V +/- 2%, 50Hz or 60Hz +/-0.5% (Battery mode)
Transient Response
+/- 3% (100% load variation)
Waveform and Distortion
Sine wave, THD < 3% at 0-100% linear load
Overload Capacity
125~150% 30secs, switch to bypass and
auto re-transfer; >150% for 200ms
Crest Ratio
3 : 1
Energy Storage
Capacity and Voltage
UltraCapacitor, 110F, 16V * 5 pieces
15 seconds at full load, 45 seconds at half load
Recharge Time
Approx. 2 minutes (Input current dependent)
Life Cycle
Approximately 500,000 charge / discharge cycles
Upon overload and UPS failure
Voltage Range
88V ~ 127V +/-20V (adjustable via LCD panel)
Transfer Time
To and From Inverter
0 ms for AC fail; 2.5 ms typical to bypass
Audible Alarms
Battery Mode
4 second (adjustable),
1 second beep when capacity low
Beep twice per second
Continuous beep tone
UPS status, I/P & O/P information,
% Load, Event history
Serial Port
RS-232 Interface; Optional power monitoring software
SNMP Intelligent Slot
Network card with SNMP Manager and Web browser
0-40 degrees C; 32-104 degrees F
Relative Humidity
0-95% non-condensing
Acoustic Noise (at 1M)
< 50 dBA
Electronics Module Weight
23 lbs / 10.5 kgs
Energy Module Weight
70 lbs / 32 kgs
17″” x 3.3″” x 18.3″ / 440 x 88 x 465 mm
(Electronics module)


Rear Views



• ISO 9001 Certified



Please download our warranty for detailed information on what is covered and what is not as well as how to go about making a warranty claim.

To register your product and ensure that it will be covered under warranty, please either mail ( or fax (310-689-2329) a fully completed registration form to us within 30 days of purchase.

Marathon Power · tel: 310-689-2328 · fax: 310-689-2329