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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Author: Shantha · Last updated: 3 October 2026
To choose a UPS for a PC, compare the total watts, VA capacity, runtime and connections needed for your computer and monitor.
UPS for a PC: How do I choose a UPS for my PC?
Choose a UPS by checking the total power draw of your computer and monitor, the UPS capacity in both watts and VA, the backup time you need, and the connection type. Leave capacity headroom and verify the runtime against the UPS manufacturer’s specifications for your actual load. A larger VA number alone does not guarantee longer backup time.
For more information, see the linked published PC UPS guide. Confirm current models, pricing, stock and warranty with Richcom before ordering.
How much UPS capacity does a computer need?
Add the wattage of the computer and the equipment you intend to keep powered, such as a monitor or router. Compare that load with the UPS’s rated watt capacity and VA capacity, then allow headroom. Check the equipment labels and manufacturer specifications; do not size a UPS from the computer’s power-supply rating alone.
How long will the UPS run my PC?
Runtime depends on the UPS battery capacity and condition, the connected load, and the UPS model. Use the manufacturer runtime chart for the expected load, and remember that an aging battery may provide less runtime. If you need a specific backup duration, ask for a runtime estimate at your measured load.
What should I check before buying?
Confirm the UPS output type, watt and VA ratings, socket compatibility, battery Original details, warranty coverage and availability. Richcom lists UPS battery options; verify that any Original battery matches the exact UPS model.
For a current recommendation and quotation, contact Richcom Technology with your PC and monitor models, measured load and required backup time.
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.
Frequently asked questions
Add the actual wattage of the PC and the equipment you want backed up, then choose a UPS whose watt and VA ratings exceed that load with suitable headroom. Check the manufacturer specifications.
Not necessarily. Runtime depends on the UPS battery capacity, battery condition and connected load. Check the manufacturer runtime chart for the expected load.
If you need the monitor during a power cut, include its power draw when sizing the UPS and confirm there are enough compatible outlets.
Use the exact UPS model and match the Original battery specifications and connector requirements stated by its manufacturer.
Contact Richcom Technology with your equipment models, measured load and required backup time to request a current recommendation and quotation.
Plan your UPS and Original batteries
UPS Systems · 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.
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