PET1102+Li lithium UPS 2000VA long runtime for power backup
Lithium Battery UPS | 2000VA/2000W | 48VDC | 1-20A Charging | BMS
Prostar PET1102+Li is a 2000VA lithium UPS for long runtime power backup applications. It uses lithium-ion battery technology, online double conversion topology, intelligent charging management, and configuration options. It delivers power protection for servers, networking equipment, telecom devices, security systems, and industrial control applications.
Why Traditional UPS Systems Are No Longer Enough
Businesses depend on digital infrastructure. Servers, network equipment, communication systems, industrial controllers, and security devices require power without interruption.
Organizations face power protection challenges:
| Common Power Problem | Business Impact | Required Solution |
| Frequent power outages | Data loss and equipment downtime | Reliable lithium UPS system |
| Long-duration blackouts | Insufficient backup time from traditional batteries | Long runtime lithium battery UPS |
| Aging lead-acid batteries | Higher maintenance cost and shorter lifespan | Lithium-ion battery technology |
| Voltage fluctuation and unstable grid | Equipment damage and operational interruption | Online double conversion UPS |
| Limited installation space | Difficult deployment in small facilities | Compact high-density lithium UPS |
Lead-acid UPS systems need battery replacement every 2‑3 years and occupy 1.5‑2× floor space. For backup time ≥ 30 minutes, charge time ≤ 2 hours, and maintenance cost ≤ $50/year, lithium UPS technology offers a solution.
Advanced Lithium UPS Solution for Long Runtime Backup
PET1102+Li 2000VA lithium UPS uses online double conversion and lithium battery management to deliver power protection.
This lithium UPS converts incoming AC to DC and then to AC output. It supplies output to connected devices.
With a rated capacity of 2000VA/2000W, PET1102+Li is suitable for:
- Small and medium-sized servers
- Network switches and routers
- Telecom communication equipment
- CCTV surveillance systems
- Industrial automation controllers
- Medical monitoring equipment
- Edge computing devices
Product Key Features
Longer Runtime with Lithium Battery Technology
One of the biggest advantages of a lithium battery UPS is improved energy density.
Compared with traditional VRLA batteries, lithium batteries provide:
- Longer backup duration
- Faster charging capability
- More charging cycles
- Smaller footprint
- Lower maintenance requirements
For businesses requiring extended backup time during grid failures, PET1102+Li provides a dependable long runtime lithium UPS solution.
High-Efficiency Online Double Conversion Protection
PET1102+Li adopts advanced online UPS architecture.
The UPS continuously converts AC power into DC and then back into regulated AC power, protecting sensitive loads from:
- Voltage surges
- Frequency fluctuations
- Electrical noise
- Harmonic distortion
- Grid instability
This makes it an ideal online lithium UPS for servers and industrial equipment.
Intelligent Charging Management for Longer Battery Life
The built-in intelligent charging system supports:
- High-current rapid charging algorithms
- Adjustable charging current
- Adjustable charging mode through LCD panel
- Battery protection management
This helps reduce charging time after power recovery and improves overall battery utilization.
Integrated Smart Battery Management System (BMS)
An integrated multi-layer BMS actively monitors cell-level parameters, including voltage balancing, temperature, state of charge (SoC), over-charge, over-discharge, and short-circuit protections.
Multi-Level Protection
Over-charge, over-discharge, over-current, short-circuit, over-temperature, and under-temperature protection.
Communication Protocol Compatibility
The UPS inverter and BMS exchange data via RS485. Protocols include Pylontech (RS485 and CANbus). The system reports per‑cell voltage, per‑cell temperature, SoC, and alarm flags every 1 second.
User-Friendly LCD Display
The LCD shows: input voltage, output voltage, load %, battery %, charge current, alarm. You can set charge current (1‑20 A), output voltage (208/220/230/240 V), and battery type (Li/Lead‑acid).
Technical Specifications
General Specifications
| Parameter | Specification |
| Model | PET1102+Li |
| Capacity | 2000VA / 2000W |
| Topology | Online Double Conversion |
| Phase | Single Phase |
| Form Factor | Tower |
| Dimension (D×W×H) | 395×145×222 mm |
| Net Weight | 6.2 kg |
Input and Output Performance
| Parameter | Specification |
| Input Voltage Range | Nominal Voltage ±15% |
| Frequency Range | 50Hz: 44-56Hz / 60Hz:54-66Hz |
| Input Power Factor | ≥0.99 |
| Input THDi | <6% |
| Output Voltage | 208/220/230/240VAC Selectable |
| Voltage Regulation | ±1% (Battery Mode) |
| Output Waveform | Pure Sine Wave |
| Transfer Time | 0ms |
| Battery Frequency Accuracy | 50Hz/60Hz ±0.1% |
| Crest Factor | 3:1 |
Battery and Communication
| Parameter | Specification |
| Battery Type | LiFePO4 Lithium / Lead Acid |
| Nominal Battery Voltage | 48VDC (51.2VDC LiFePO4) |
| Charging Current | 5A Default, Adjustable 1-20A |
| Charging Mode | CC/Floating or CC/CV/Floating |
| Battery Protection | Over-charge, Over-discharge, Over-current, Short Circuit, Temperature Protection |
| Communication Ports | USB / RS232 / RS485 |
| Smart Slot | SNMP / Dry Contact Optional |
| BMS Protocol | Pylontech RS485 & CANbus |
Lithium UPS Detail
| 1. External Battery Connector | 2. Emergency Power Off(Option) | 3. RS485 Port for BMS |
| 4. USB Port | 5. AC Output Sockets | 6. Grounding |
| 7. Intelligent Slot(for SNMP Card or AS400 Dry Contact) | 8. Input Circuit Breaker | 9. AC Input Terminal |
Protect Home and Office Computer Systems
Weather events, grid aging, and wiring faults threaten equipment. A surge of 2,000 V or a power loss of 20 ms can damage motherboards and corrupt hard drives. This UPS conditions AC power: output stays within ±1% of set voltage.
Application Scenarios
Edge Computing
Compact form factor and high temperature tolerance make it optimal for remote sites without dedicated cooling.
Enterprise Server Backup
Provides clean, regulated online power for mission-critical blade servers, switches, and storage systems (NAS/SAN).
Healthcare & Medical IT
Safeguards lab automation systems, electronic health record (EHR) workstations, and imaging equipment against micro-outages.
Security and Surveillance Systems
CCTV systems require continuous operation.
The lithium UPS ensures:
- 24/7 protection
- Stable voltage output
- Longer backup time
Frequently Asked Questions (FAQ)
What is a lithium UPS?
How long can PET1102+Li lithium-ion ups provide backup power?
Is PET1102+Li lithium ups system suitable for servers?
Can PET1102+Li li-ion ups work with a generator?
How does zero transfer time benefit online double-conversion topology?
Can Prostar provide OEM lithium UPS solutions?
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| MODEL | PET1102+Li | |
| CAPACITY | 2000VA/2000W | |
| Form Factor | Tower Type | |
| Size, D X W X H (mm) | 395×145×222 | |
| Net Weight (kgs) | 6.2 | |
| INPUT | ||
| Low Line Transfer | 176Vac (Load ≥100%); 176–110Vac (Load 100%–50%); 110Vac (Load ≤50%) | |
| Low Line Recovery | Low transfer voltage + 10 V | |
| High Line Transfer | 300 Vac ±5% | |
| High Line Recovery | 290 Vac ±5% | |
| Frequency Range | 50Hz:44-56Hz or 60Hz: 54-66Hz | |
| Phase | Single Phase, L+N+PE | |
| Power Factor | ≧ 0.99 @ nominal voltage (input voltage) | |
| Harmonic Distortion(THDi) | < 6% | |
| OUTPUT | ||
| Output Voltage | 208/220/230/240VAC (Selectable) | |
| AC Voltage Regulation | ± 1% (Batt. Mode) | |
| Frequency Range(AC Mode) | Synchronized to Mains | |
| Frequency Range (Batt. Mode) | 50Hz or 60Hz ± 0.1% | |
| Current Crest Ratio | 3:1 | |
| Harmonic Distortion(THDv) | <3% THD (Linear Load), <6% THD (Non-linear Load) | |
| Transfer Time | AC to Battery | 0ms |
| Battery to AC | 0ms | |
| Inverter to Bypass | 4ms | |
| Waveform | Pure Sine Wave | |
| Overload Capacity | AC Mode: Battery Mode: 30mins @102%-110% load 1min @102%-110% load 10mins @110%-130% load 10sec @110%-130% load 30sec @130%-150% load 3sec @130%-150% load 200ms @>150% load 200ms @>150% load | |
| EFFICIENCY | ||
| AC Mode | > 94% | |
| Battery Mode | > 90% | |
| BATTERY | ||
| Battery Type | LiFePO4 Lithium / Lead-Acid | |
| Nominal Battery Voltage | 48VDC (51.2VDC for LiFePO4) | |
| Charging Current | 5A(Default),1A-20A | |
| Charging Voltage | 56.4VDC (14.1V * N) | |
| Charging Algorithm | 2-stage (CC/Floating) or 3-stage (CC/CV/Floating) | |
| BMS Protection | Over-charge, Over-discharge, Over-current, Short-circuit, Over-temp, Under-temp | |
| Integrated Functions | Auto Restart, Self-Test Function, Smart Battery Management | |
| ECO | ||
| Input Voltage Range | Nominal Voltage ± 15% | |
| Input Frequency Range | 50Hz / 60Hz ± 4Hz | |
| ENVIRONMENT | ||
| Ambient Temperature | 0°C – 40°C | |
| Operation Humidity | 20%-95% (Non-condensing) | |
| Storage Temperature | -15~60℃ (Excluding battery) | |
| Altitude | 1000 m (derate for higher altitudes up to 4000 m) | |
| Noise Level | Less than 50dBA @ 1 Meter | |
| COMMUNICATION | ||
| Communication Interface | USB, RS232, RS485 | |
| BMS Protocol Support | Native support for Pylontech RS485 and CANbus protocols | |
| Expansion Slot | Smart Slot for optional SNMP / Dry Contact card | |
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