10 Best Battery Backup For Wifi Router 2026 in the United States

The Vertiv Liebert PSI5 Lithium Ion UPS is a solid choice for anyone looking for reliable battery backup for their Wi-Fi router and other devices. With a capacity of 1500VA and 1350W, it can handle multiple devices simultaneously, thanks to its three programmable outlets. One of its standout strengths is the use of lithium-ion batteries, which typically outlast traditional batteries, allowing for fewer replacements over time. This UPS also offers a rapid recharge time, reaching full capacity in just about 2 hours, making it convenient for those who need quick power restoration. Furthermore, it provides a decent runtime—up to 7.5 minutes under full load and about 17.7 minutes at half load—giving you enough time to safely power down devices in case of an outage.

On the downside, its size (16.1”D x 6.77”W x 3.4”H) and weight (41.6 pounds) might make it less portable if you need to move it around frequently. While the design is primarily intended for a rack or tower setup, it may not fit seamlessly into all home environments. Additionally, while the runtime is suitable for short outages, it may not be sufficient if you are looking for extended backup time during longer power failures.

The Vertiv Liebert PSI5 is a robust option for those seeking a dependable battery backup solution for their Wi-Fi routers and similar devices.

The CyberPower PR1500LCD Smart App Sinewave UPS System is a robust uninterruptible power supply (UPS) designed to keep your devices powered during outages. With a capacity of 1500VA/1500W, it provides ample backup to support various network devices, including WiFi routers, which is essential for maintaining connectivity during power interruptions. The eight outlets offer plenty of options for connecting multiple devices, and the automatic voltage regulation (AVR) feature helps protect your equipment from minor power fluctuations, which can prolong the battery’s life.

One of the notable strengths is the multifunction LCD panel that provides real-time information on battery and power conditions. This is particularly helpful for monitoring the status of your UPS at a glance. Additionally, the unit comes with a solid warranty of three years, including the battery, which is a strong assurance of reliability.

The CyberPower PR1500LCD is well-suited for small businesses or home offices that need reliable backup power for multiple devices, including WiFi routers. While it offers strong protection and features, potential buyers should consider its size and battery type when making a decision.

The APC BR1500MS2 is a solid choice if you’re looking for reliable battery backup mainly to keep your WiFi router and other electronics running during power outages. It has a 1500VA (900W) battery capacity, which is plenty to support a router and several devices for a decent amount of time, though exact runtime depends on what’s plugged in. The unit offers 10 outlets—6 with battery backup and surge protection, plus 4 with surge protection only—so you can power multiple devices safely. It also features two USB charger ports (one USB-C and one Type-A) for charging phones or tablets, which is a handy extra.

The built-in Automatic Voltage Regulation (AVR) helps maintain stable power, protecting sensitive electronics from voltage swings. The battery is sealed lead acid and replaceable, which extends the device's lifespan but adds some weight; the UPS weighs nearly 28 pounds and is fairly large, so it’s more suited for a stationary setup rather than portability. Setup and management are straightforward, especially for Windows users, while Mac users can use built-in energy settings.

Although it’s not the smallest or lightest option, its strong surge protection and stable sine wave output make it an excellent choice for home or small office use where keeping your internet and critical devices running smoothly is important.