UPS battery support · Richcom Technology
Plan battery service for your UPS
If your UPS gives less backup time than expected, tell us its full model, the equipment connected to it and any displayed alarm. Request an assessment before selecting batteries, because the UPS capacity alone does not identify the correct battery arrangement.
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In 2026, our dependence on computers is greater than ever, whether for remote work, high-end gaming, content creation, or managing critical business data. However, this digital reliance comes with a significant vulnerability: unstable mains power. In Sri Lanka, where voltage fluctuations and unexpected power cuts are still common, a simple surge protector is no longer sufficient. A high-quality Uninterruptible Power Supply (UPS) is an essential investment for anyone looking to protect their hardware and data.
But with various technologies and sizes available, choosing the right UPS can be confusing. This guide will walk you through everything you need to know to select the perfect power backup for your PC in 2026, ensuring you get reliable protection tailored to your needs.
Understanding UPS Types: Offline, Line-Interactive, and Online
The first step in choosing a UPS is understanding the core technologies available. The right type depends heavily on the sensitivity of your equipment and the quality of power in your area.
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Offline/Standby UPS: This is the most basic type. It provides surge protection and battery backup only when the mains power fails. There is a brief transfer time (usually 5-10ms) as it switches to battery power. While affordable, it offers minimal power conditioning and is best for basic home setups where occasional flickers are acceptable .
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Line-Interactive UPS: The most common choice for standard desktop PCs and home offices. It features an autotransformer that regulates minor voltage fluctuations (like sags and surges) without draining the battery. This preserves battery life and offers better protection than an offline model, with a faster transfer time .
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Online Double-Conversion UPS: This is the gold standard for protecting sensitive and mission-critical equipment. An online UPS continuously converts incoming AC power to DC and then back to pure, clean AC power. This isolates your PC from raw mains power entirely, resulting in zero transfer time during an outage. It corrects all power anomalies, including frequency variations and line noise, making it ideal for servers, high-end workstations, and areas with extremely poor power quality .
An online double-conversion UPS can suit demanding workloads, but selection still depends on load, output requirements, battery arrangement and runtime. No UPS type guarantees protection against every possible power event.
How to Size Your UPS: Calculating Volt-Amps (VA) and Watts
Selecting the correct size is crucial. A UPS is rated in both Volt-Amps (VA) and Watts (W). The VA rating indicates the total load the UPS can handle, while the Watt rating indicates the actual power it can deliver. To choose the right size, you need to calculate the power draw of your PC and monitor.
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Measure the connected load: A PC power supply’s maximum wattage is not the PC’s actual mains consumption. Include the monitors and any other equipment that needs backup, using a measurement or a supported load estimate.
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Add your monitor: A typical LED monitor can draw between 25W to 50W.
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Calculate total load: For example, a PC with a 750W PSU and a 50W monitor requires about 800W.
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Allow capacity headroom: Compare the actual connected watts and VA against the UPS ratings. Leaving around 20% spare rated capacity can be an initial sizing allowance, but the correct margin depends on manufacturer guidance, startup loads and planned expansion.
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Convert to VA: To find the VA rating, divide the Watts by the Power Factor (usually 0.9 for modern online UPS). So, 1000W / 0.9 = approximately 1111VA. You would need a UPS rated at least 1111VA, meaning a 1500VA or 2000VA unit would be the next suitable size.
Kstar (China) 2KVA Single-Phase Online UPS: The Sweet Spot for Performance PCs
For most enthusiasts, powerful workstations, and small office servers, the Kstar (China) 2Kva Single-Phase Online Ups represents the perfect balance of capacity and protection. This model provides 2000VA / 1800W of pure sine wave output, ensuring your sensitive electronics receive clean, stable power at all times .
As an online double-conversion UPS, it offers zero transfer time, meaning your PC won’t even flicker during a power cut. This unit is ideal for handling a high-end gaming rig or a critical file server along with multiple peripherals. It features a wide input voltage range, effectively handling the common voltage sags seen in Sri Lankan power grids without needlessly switching to battery, thus prolonging battery life . You can find this robust model, complete with professional support, available at Richcom Technology, Sri Lanka’s premium destination for power solutions.
Kstar (China) 3KVA Single-Phase Online UPS & 10KVA Models: Scalable Power for Growing Demands
As your requirements grow, so should your power infrastructure. The Kstar (China) 3Kva Single-Phase Online Ups is a step up, delivering 3000VA for more demanding setups. This model is exceptionally popular for consolidating power protection for a small server rack, a broadcast studio, or a network closet with multiple high-power devices. In fact, the 3KVA rackmount version is a key solution offered by Richcom Technology for edge computing and critical network infrastructure, providing enterprise-grade reliability in a compact form factor .
For larger installations, check the exact UPS model, watt and VA ratings, electrical supply, load and supported battery bank. Installation planning and manufacturer runtime data matter more than a generic capacity label.
Why Richcom Technology is the Premium Destination for UPS Systems in Sri Lanka
Navigating the market for power protection requires a partner with both depth of inventory and technical expertise. Richcom Technology has established itself as the premier provider in Sri Lanka, offering an extensive portfolio of world-class UPS systems that range from 650VA to 200kVA . Whether you need a small unit for a single desktop or a massive three-phase system for an entire industrial complex, Richcom has the solution.
What truly sets Richcom apart is their commitment to complete customer support. They don’t just sell units; they provide:
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Expert Consultation: Helping you correctly size and select the perfect UPS for your specific load and runtime needs.
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Certified Installation: Professional setup by trained technicians to ensure safety and optimal performance .
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Comprehensive After-Sales Service: Including maintenance contracts and genuine battery replacement services, such as their specialized 1KVA online UPS battery replacement, ensuring your investment is protected for years .
Request a load-specific quotation and confirm the UPS model, battery arrangement, warranty coverage, installation scope and required runtime before ordering.
Plan your UPS and Original batteries
Original UPS Batteries · UPS Battery Backup Time Guide · Original UPS Battery Compatibility Guide
Match batteries to the exact UPS model, DC voltage, dimensions and supported configuration.
Compare actual UPS options and the battery arrangement
These are current Richcom listing examples, with LKR prices checked on 10 October 2026. A long-backup unit supplied without batteries does not provide backup runtime until a supported battery bank is installed. Confirm the exact hardware model and complete installed quotation before ordering.
| Published UPS | Battery arrangement | Price (LKR) |
|---|---|---|
| Kstar (China) 3Kva Online Ups Single Phase (Long Backup) (2Y) | Supplied without batteries; bank quoted separately | 195,000 |
| Kstar (China) 2Kva Online Ups Single Phase (Long Backup) (2Y) | Supplied without batteries; bank quoted separately | 165,000 |
| Kstar (China) 1Kva Online Ups Single Phase (Long Backup) (2Y) | Supplied without batteries; bank quoted separately | 120,000 |
| Kstar (China) 1KVA Single-Phase Online Rackmount UPS (2Y) | Confirm the supplied battery pack for the exact model | 145,000 |
| Kstar (China) 2KVA Single-Phase Online Rackmount UPS (2Y) | Confirm the supplied battery pack for the exact model | 175,000 |
| Kstar (China) 3KVA Single-Phase Online Rackmount UPS (2Y) | Confirm the supplied battery pack for the exact model | 185,000 |
A worked capacity example, not a runtime promise
If a measured computer-and-monitor load is 300W, allowing 20% spare rated capacity gives a starting point of 300 ÷ 0.8 = 375W. This is an illustrative sizing allowance, not a universal manufacturer rule. The UPS must also meet the VA requirement, startup loads, waveform and required runtime.
Why the exact model matters
Kstar’s MEMOPOWER-III MP RT data sheet lists the MP RT 1K S at 1000VA/900W, 2K S at 2000VA/1800W and 3K S at 3000VA/2700W. These are manufacturer model examples. A generic 1kVA or 2kVA catalog title does not prove that the supplied unit is that model.
What supports a 15-minute or 30-minute estimate?
Obtain the manufacturer’s runtime curve for the exact UPS and battery configuration at the measured load. Where that data is unavailable, ask for a documented load-specific estimate and confirm it by testing the installed system. Neither VA nor Ah alone establishes the backup time; no unverified minute rating is assigned to these listings.
For a compact sizing checklist, read the PC UPS selection checklist. For battery selection, use the Original UPS battery guide.
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