Fibre broadband keeps working during a power cut — your router does not. Because a router and ONT together draw only 15 to 30 watts, even a small APC Back-UPS keeps the internet alive for a long time, which is why this is the single best-value UPS purchase most homes make. Work-from-home calls, streaming and cloud backups simply carry on.
See the recommended range »Get it sized on WhatsApp
What draws power in this setup
Typical figures for Indian installations. Use the actual rating on your equipment where you have it — these ranges are for planning.
| Equipment | Typical draw |
|---|---|
| Fibre ONT / modem | 5 – 12 W |
| Wi-Fi router | 8 – 18 W |
| Mesh node (each) | 6 – 12 W |
| Network switch (8-port) | 5 – 15 W |
| VoIP phone / adapter | 3 – 8 W |
What size UPS you need
| Your total load | Recommended UPS | Why |
|---|---|---|
| Router + ONT only (under 30 W) | APC Back-UPS 600VA | The standard home broadband setup — long runtime at this load. |
| Router, ONT and mesh nodes | APC Back-UPS 600VA | Still a light load; the same unit copes easily. |
| Networking plus a work laptop | APC Back-UPS 800VA | Adds headroom for a laptop charger and a monitor. |
| Networking plus a desktop | APC Back-UPS 1100VA | See our desktop PC guidance instead. |
How the numbers work: UPS VA ratings in these families assume a 0.6 power factor, so a 1100VA unit supports roughly 660 W. Size for peak draw plus about 30% headroom, not for average use.
Which type of UPS
Line-interactive Back-UPS. At this load level almost any unit gives long runtime; buy for build quality and battery life rather than VA.
Genuine APC units we stock for this
All prices are GST-inclusive and every unit ships with the full APC manufacturer warranty and a GST invoice.
This is the cheapest useful backup you can buy
Nothing else on your desk gives so much runtime per rupee. A 600VA unit carrying 25 W of networking gear runs for a very long time compared with the same unit carrying a 200 W desktop — the load is what determines runtime, far more than the VA rating.
Check the power brick voltages
Routers and ONTs use small external adapters. Keep them on the battery-backed outlets, not the surge-only ones — it is an easy mistake to make when everything is a similar-looking black brick.
The battery, three to five years from now
Every UPS eventually needs a new battery, and this is where buying from an authorised partner pays off. A genuine APC RBC replacement battery cartridge typically lasts 3 to 5 years. When yours is due, enter your model in the Battery Finder and it will show the exact cartridge that fits, with live pricing — or check the battery replacement chart.
What we do beyond selling you the box
- Genuine APC supply — Authorised APC by Schneider Electric partner. Factory-sealed units, full manufacturer warranty, GST invoice on every order.
- Sizing help — Tell us what you need to protect and we will size the UPS for you before you buy — on WhatsApp or by phone.
- Installation — UPS installation and on-site service, so the unit is commissioned properly rather than left in the box.
- Battery replacement — Genuine APC RBC replacement cartridges, matched to your exact model, for the life of the UPS.
- AMC — Annual Maintenance Contracts to keep business-critical power covered.
- Collection or delivery — Fast, fully-tracked delivery across India, or collect from our Bengaluru warehouse.
Frequently asked questions
Which UPS is best for a Wi-Fi router in India?
A 600VA APC Back-UPS is more than enough for a router and ONT, and gives long runtime because the load is so small. Choose a larger unit only if you also want to back up a laptop, monitor or desktop on the same UPS.
How long will a UPS run my router?
Far longer than it would run a computer, because a router and modem together draw only 15–30 W. This is the load where a small UPS genuinely carries you through a typical Indian outage.
Will my fibre internet work during a power cut?
The fibre line itself usually stays live — what fails is your own router and ONT. Put those on a UPS and your connection continues, assuming your provider's equipment in the area is also backed up.
Can I run a laptop and router on the same UPS?
Yes. A laptop charger adds 45–90 W, so step up to an 800VA unit for comfortable headroom and useful runtime on both.