Quick Answer

For SA municipalities dealing with power interruptions, a router paired with a quality UPS (uninterruptible power supply) keeps your internet connection alive when the grid goes down. The key is matching your UPS capacity to your router's power draw and expected outage duration.

Keeping your home or office internet running during power outages is a real concern across South African municipalities. Whether you are working from home, running a small business, or just staying connected, the right router and UPS combination makes all the difference. Here is what to look for when choosing gear that keeps you online.

Understanding Your Router's Power Requirements

Most home routers draw between 10W and 25W of power. This relatively low draw means even a modestly sized UPS can keep a router running for several hours during an outage. Before buying a UPS, check your router's power adapter label for its wattage rating. Add roughly 20% headroom to that figure when sizing your UPS - this accounts for efficiency losses and gives you a buffer. A 600VA or 1200VA UPS is typically more than sufficient for a router alone, though you will want more capacity if you are also running a fibre ONT, network switch, or desktop PC on the same unit.

Key Features to Look for in a UPS for Routers

Not all UPS units are created equal. For router use in SA municipalities, prioritise these features: pure sine wave output (important for some newer routers and ONTs that are sensitive to modified sine wave power), sufficient runtime at your router's wattage, and a fast switchover time so your router does not drop its connection when the power fails. Battery health monitoring and automatic voltage regulation (AVR) are also valuable - AVR protects your equipment from the voltage fluctuations that are common when the grid is unstable.

Recommended Setups by Use Case

For a basic home setup with a single router, a 600VA to 1200VA UPS provides excellent runtime at minimal cost. For small offices running a router, ONT, and a managed switch, step up to a 2000VA unit to cover all your networking equipment for two to four hours. Businesses that need extended uptime should consider a rack-mounted UPS with external battery packs, or a dedicated inverter-battery system sized for their full equipment load. Whatever your setup, always use a surge-protected unit to safeguard expensive networking hardware.

Frequently Asked Questions

Q: How long will a UPS keep my router running? A: Runtime depends on your UPS battery capacity and your router's wattage. A 1200VA UPS powering a 15W router can typically provide four to six hours of runtime - enough for most outage scenarios.

Q: Does my router need a pure sine wave UPS? A: Many routers work fine on modified sine wave UPS units, but some modern routers and fibre ONTs specifically require pure sine wave output. Check your router documentation or contact the manufacturer to confirm.

Q: Can I use a car inverter to power my router during outages? A: Yes, a DC-to-AC inverter connected to a deep-cycle battery is a viable solution, but a dedicated UPS is more reliable, easier to manage, and provides better surge protection for your equipment.

Ready to Find Your Perfect Match? Shop UPS power solutions at Evetech to keep your router online when it matters most.