1500VA Offline UPS

The AK 1500VA Offline UPS is built for critical loads that demand high power and longer autonomy. Its dual 9Ah batteries provide a substantial energy reserve, capable of supporting a powerful workstation with dual monitors, a small server, network switches, and a printer for 10‑15 minutes under full load.

The advanced AVR circuit stabilises input voltage across a wide range, ensuring your equipment receives clean power even in areas with unstable grids. The unit’s rugged construction and intelligent cooling design allow continuous operation at high loads without overheating.

Core Advantages

1. High Power Output (900W)

With 1500VA/900W capacity, this UPS can handle the most power‑hungry desktop computers, high‑end gaming rigs, and entry‑level servers. 1500VA Offline UPS is also suitable for powering multiple networking devices in a rack.

2. Extended Runtime with Dual 9Ah Batteries

The 12V/9Ah ×2 configuration delivers significantly longer backup times – up to 20 minutes at 50% load – allowing you to perform orderly shutdowns or even ride through brief outages without interruption.

3. Advanced Laminated Transformer

The custom‑designed EI transformer, using high‑grade silicon steel and precision winding, ensures low losses and high efficiency even under sustained heavy loads. This translates to cooler operation and extended component life.

4. Full Digital Control and Diagnostics

The CPU‑controlled board provides real‑time monitoring of input/output voltages, battery status, and load levels. Three LED indicators (Green, Yellow, Red) and audible alarms keep you informed of every operating mode.

Product Parameter

Key Application Scenarios

1. High-Performance Workstations

Protect CAD/CAM, video editing, and 3D rendering machines from unexpected power interruptions. These workstations often handle hours of unsaved work, making UPS protection essential for professional productivity.

2. Small Business Servers

Keep file servers, mail servers, and database servers online during outages. Server downtime can disrupt business operations and lead to data corruption, and the AK-1500VA's 900W capacity supports entry-level server configurations.

3. Medical Equipment

Ensure diagnostic devices and monitors remain operational during power failures. In healthcare environments, even brief outages can affect patient monitoring and diagnostic accuracy.

4. Laboratory Instruments

Protect sensitive analytical equipment from power anomalies. Laboratory instruments often require stable, clean power for precise measurements, and the AK-1500VA delivers regulated output through its AVR circuit.

Customization Services

KTAC TECHNOLOGY supports OEM/ODM services including logo printing, custom packaging, and optional communication ports (RS232, USB, or RJ45). Contact us to tailor the AK‑500VA to your brand requirements.

Our Commitment

·20+ years of continuous power supply manufacturing (since 2004)

·3 factories, 8,000+ m² production floor

·100+ professional staff including QA and after‑sales engineers

·Exported to 30+ countries worldwide

·Trusted by Tier‑1 distributors in Southeast Asia, Africa, and Europe

FAQ

1. Can the AK 1500VA Line Interactive UPS support a laser printer?

Laser printers have high startup surge; we recommend connecting them only if total load stays below 900W. Consider using a separate surge protector for printers.

2. What is the typical runtime at full load?

At 900W, expect approximately 5‑7 minutes – enough time to save work and shut down. At half load, runtime extends to 15‑20 minutes.

3. Does it come with software for automatic shutdown?

Optional management software is available when you order the communication port (RS232/USB). It enables safe system shutdown during prolonged outages.

4. What is the difference between the AK-1500VA and the AK-1000VA?

The AK-1500VA offers 50% higher power capacity (1500VA/900W vs 1000VA/600W) and uses dual 12V/9Ah batteries compared to the AK-1000VA's dual 12V/7Ah batteries. This translates to longer runtime at equivalent loads and the ability to support more demanding equipment. The physical chassis is also larger to accommodate the more powerful laminated transformer and improved thermal management.

5. Can the AK-1500VA be mounted in a server rack?

The AK-1500VA has a tower/desktop form factor and is not designed for rack mounting. For rack‑mount applications, please contact our sales team to discuss available rack‑mount UPS options.

6. What is the expected battery lifespan?

The dual 12V/9Ah sealed lead‑acid batteries typically last 3 to 5 years under normal operating conditions (25°C ambient temperature, regular usage). Factors that shorten battery life include high ambient temperatures (above 40°C), frequent deep discharges, and prolonged storage without charging. When backup time becomes noticeably shorter, it is time to replace the batteries.

7. Can I replace the batteries myself?

Yes, the AK-1500VA is designed with user‑replaceable batteries. The front panel can be opened to access the two 12V/9Ah batteries. Please ensure you replace both batteries at the same time with identical specifications. Mixing old and new batteries or using different capacities will reduce performance and may cause charging imbalance. Always disconnect the UPS from mains power before opening the compartment.

8. The 1500VA Offline UPS emits a continuous beep after a prolonged outage. What should I do?

A continuous beep indicates the battery voltage has dropped to the low‑voltage cutoff point. The UPS has automatically shut down to prevent deep discharge damage to the batteries. When mains power is restored, the UPS will resume charging automatically. No manual intervention is required. If the continuous beep persists after power restoration, please contact our support team.

9. Does the AK-1500VA provide surge protection for network and phone lines?

Optional RJ45 and RJ11 ports are available for protecting network and telephone connections. These ports filter surges on data lines to prevent damage to connected networking equipment. Please specify your requirement when ordering, as this feature is not included in the standard configuration.

10. What is the recommended load for optimal runtime?

For optimal runtime and battery health, we recommend operating the AK-1500VA at 50% to 70% of its rated capacity (450W to 630W). At this load range, the unit provides 15‑20 minutes of backup time while maintaining efficient operation. Running continuously at full load (900W) will reduce runtime to 5‑7 minutes and may increase internal temperatures.