Keep Your Internet Running in Power Outages: Best Budget UPS and Backup Options

The One Setup Most People Should Buy First

Backup internet during outages means using low-cost power and cellular tools to keep your WiFi router, modem, and core devices online so you can still work, stream, and check security cameras when your main electricity or ISP connection fails. The single best starting point for most homes is a mini UPS on your modem and router plus a mobile hotspot backup internet source from an old smartphone. That combination gives your power outage home network both battery power and a second connection, delivering affordable internet resilience without a complicated install. For the power side, the CHINTE Mini UPS 10400mAh Battery Backup for Router and Modem is the top pick, because it is purpose-built for networking gear and costs USD 41.99 (approx. RM195) before discounts, dropping to USD 39.89 (approx. RM185) with coupon. On the connectivity side, repurposing a spare phone as a permanent hotspot and tethering source keeps your network online whenever your primary ISP dies.

CHINTE Mini UPS: Best Budget WiFi Router UPS Backup

If you buy only one thing to get through short power cuts, make it the CHINTE Mini UPS 10400mAh Battery Backup for Router and Modem. This compact unit is designed to keep compatible networking equipment powered during outages, supporting DC 12V, 9V, and 5V outputs, USB power, USB-C, and PoE for compatible devices. It is built for modem and router duty but can also power some security cameras, IP phones, LED lights, and other small electronics, which makes it ideal for smart home owners and people who rely on connected security devices. A clear LED battery indicator lets you see remaining power at a glance. At USD 41.99 (approx. RM195), often reduced to USD 39.89 (approx. RM185) with coupon, it offers affordable internet resilience by keeping your network online during short outages and flickers. The main downside: it is not a generator replacement and is meant for short interruptions rather than long, multi-day blackouts.

Turn an Old Phone Into Mobile Hotspot Backup Internet

Power is only half the problem; when your ISP goes down, you need backup internet during outages. The most practical fix is to give your old phone one permanent job as a dedicated hotspot and tethering device near your router. As long as the spare phone still supports tethering and has a cellular data plan, it can stay plugged in with your networking gear and jump in whenever your primary connection fails. Start with the built-in mobile hotspot: enable it in the phone’s settings, check the network name and password, and connect your PC like any other Wi-Fi network. This is the fastest way to get online in a pinch, but expect lag, occasional disconnects, and faster battery drain while the phone gets warm. Even with a router sharing the cellular connection, speeds and latency can be poor, big downloads can burn through mobile data, and thermal buildup is a real con. Still, this low-cost approach removes your reliance on a single ISP and can literally save a workday.

USB and Wireless WAN: Make Your Phone Power the Whole Network

For a seamless power outage home network, you want every device to see the backup connection, not only one PC. USB tethering is the next step: connect the phone to a compatible router with a USB cable, enable USB tethering in the phone settings, and let the router treat the phone’s cellular data as its WAN source. The router then shares that mobile hotspot backup internet across all your usual WiFi and wired devices. Not every router supports this, so look for USB WAN or smartphone tethering in its settings. If cabling limits where you can place the phone, switch to wireless WAN (often called Wi-Fi as WAN, WISP mode, hotspot mode, or wireless bridge mode), which lets the router connect to the phone’s hotspot over WiFi. This gives you freedom to move the phone to a window or higher shelf, where cellular signal is often much better over only a few feet indoors. Even with these upgrades, remember that cellular connections still suffer from rough latency, variable speeds, and heat from continuous use.

If you want a more polished plug-in path from phone to laptop or small travel router, a TP-Link USB to Ethernet adapter around USD 12 (approx. RM55) is a practical add-on that can help if you frequently have internet issues. Paired with a low-cost backup connection that can cost around USD 7 (approx. RM30) in some markets, these pieces sit squarely in the USD 5–40 (approx. RM25–RM190) budget range, giving you affordable internet resilience without signing up for premium business lines.

Buy if / Skip if

• Buy the CHINTE Mini UPS if you want a dedicated WiFi router UPS backup that keeps your modem and router online through short summer storms and power flickers.
• Skip the CHINTE Mini UPS if you need whole-home power or long multi-day backup, because it is not a replacement for a generator and focuses on short outages.
• Buy the CHINTE Mini UPS if you depend on streaming, smart TVs, WiFi calling, or connected security cameras and want them to stay active during brief blackouts.
• Skip the spare-phone hotspot setup if you have strict mobile data caps or poor cellular coverage at home, as speeds, latency, and heat can be serious drawbacks.
• Buy the old smartphone hotspot solution if you work from home and need backup internet during outages to avoid telling clients your connection died again.
• Buy the USB tethering and wireless WAN approach if you want your router to share mobile hotspot backup internet across your whole power outage home network, not only a single PC.
• Skip the USB/WAN features if your router lacks USB WAN, smartphone tethering, or Wi-Fi as WAN options and you are not willing to upgrade hardware.
• Buy the low-cost adapters and backup connectivity in the USD 5–40 (approx. RM25–RM190) range if you want affordable internet resilience and to stop relying on one ISP for everything.