UPS Price in Nepal
UPS buying guide: size, type and backup time
A computer UPS keeps your PC running through a power cut long enough to save your work and shut down. Match it to three things: the watts you'll plug in, the type of UPS, and how long it has to last.
1. Size it in watts, not just VA
A UPS has two ratings, VA and watts, and your load must stay under both (APC). The VA number is the big one on the box, but the watt rating is often only about 60% of it. The Dahua 600VA/360W Line-Interactive UPS shows this: 600VA, but 360 W.
Add up the watts of everything you'll plug in. A desktop PC drawing 150 W, a 25 W monitor and a 10 W router come to 185 W, which a 600VA/360W UPS covers. A gaming PC that pulls 400 W is already past 360 W, so look at 1000VA models and check their watt rating too. These wattages are examples; a PC usually draws less than the figure printed on its power supply. Online models are often closer to their VA: Delta rates its INX 1kVA at 0.8 kW (Delta).
2. Choose offline, line-interactive or online
An offline (standby) UPS passes mains power straight through and switches to battery when it fails, with a break of about 6 to 8 milliseconds. Vertiv says this type suits devices under 1500VA, such as home computers. A line-interactive UPS also corrects low and high voltage without switching to battery, and Vertiv gives it a 4 to 6 ms break (Vertiv). The Dahua 600VA is line-interactive, with boost and buck voltage regulation and an input range of 140 to 290V (Dahua).
An online (double conversion) UPS turns the incoming AC into DC and back into AC all the time, and it costs more than the other two types (Fuji Electric). Because your equipment always runs from that conversion, nothing has to switch over in a cut. Delta lists zero transfer time for its INX online models, along with 110 to 300V input (with reduced load at the low end), sine wave output, and uses such as servers, banking POS and network security (Delta). If low or high voltage is common where you are, a line-interactive or online UPS is worth the extra.
3. Expect minutes of backup, not hours
Backup time falls quickly as the load rises. APC rates its 1100VA Back-UPS at about 50 minutes on a 60 W load, 27 minutes at 120 W and 11 minutes at 240 W (APC). After a cut, the battery also needs time to refill: Dahua quotes 4 hours to get its 600VA model back to 90% (Dahua).
If you need hours of backup for lights, fans and a TV, a home inverter with a big battery fits better. See inverter price in Nepal and inverter battery price in Nepal.
4. Know the battery inside
Small UPS units run on sealed 12V batteries; the Dahua 600VA uses one 12V 7Ah battery (Dahua). The voltage in a model's name tells you more: the Uniline UPS 1000VA/24V (SL1000) runs on 24V, which means two 12V batteries.
Schneider Electric says most of its APC UPS batteries last 3 to 5 years. Heat shortens that. By its rule of thumb, each 8°C rise halves battery life, so a battery rated for 4 years at 25°C lasts about 2 years at 33°C (Schneider Electric). In a Terai summer, keep the UPS somewhere cool with air around it, not shut in a cabinet. When backup time drops, a new battery usually brings it back. Replacements such as the Livguard 7.2AH/12V UPS Battery are on this page; match the voltage, Ah and size of the old one.
5. Home UPS and router UPS on this page
This page also lists home UPS and inverters, such as the Su-kam 1100VA/12V Falcon Pure Sine Wave Home-UPS and the Durasol 1250/12V Pure Sine Wave Home UPS. These run lights, fans and a TV for hours from external batteries, and the battery is sold separately unless the name says otherwise.
The mini DC router UPS models from Hitech, SKE and Nexgen keep a Wi-Fi router running from DC power. Check the voltage on your router's adapter label and choose a UPS with a matching output.
Buying from Quality Computer
Every UPS comes with a VAT bill. We usually deliver all over Nepal in 2 to 5 days, and delivery is free within 15 km on products over Rs 5,000. You can also visit our store on Bhadrapur Road, Birtamode, or call 023-530150 or 9863609150.
More reading: UPS vs inverter in Nepal · Router UPS for power cuts · Protecting your computer from power surges
UPS FAQ
What size UPS do I need for my computer?
Add up the watts of your PC, monitor and anything else you'll plug in, and keep the total under the UPS's watt rating, which is often about 60% of its VA. A typical office PC with a monitor fits a 600VA/360W UPS. A gaming PC often needs 1000VA or more.
How long will a UPS run my computer?
Usually minutes, enough to save your work and shut down. APC's 1100VA model runs about 27 minutes at 120 W and 11 minutes at 240 W. For hours of backup, look at a home inverter with a battery.
What is the difference between an online and offline UPS?
An offline UPS switches to battery when the power fails, with a break of a few milliseconds. An online UPS runs your equipment from its inverter all the time, so there's no break and the output stays steady. Online costs more and suits servers and sensitive equipment.
Can I replace the battery in my UPS?
Usually, yes. Match the voltage, Ah and size of the old battery. APC says most of its UPS batteries last 3 to 5 years, and less in a hot room.
Which UPS brands do you sell?
Dahua, Delta, Durasol, Fuji Electric, Hikvision, Hitech, JDKee, Livguard, Nexgen, Numeric, Prolink, SKE, Su-Kam, Su-Vastika and Uniline. Every price on this page is our current website price.
Do you deliver UPS outside Birtamode?
Yes. We usually deliver all over Nepal in 2 to 5 days, and delivery is free within 15 km on products over Rs 5,000.
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