10 Best Battery Backup For Wifi Router 2025 in the United States

The Amazon Basics UPS Battery Backup offers a reliable and compact solution to keep your WiFi router and other small electronics powered during brief outages. With a battery capacity rated at 400VA/255W, it provides enough backup power to safely shut down devices or maintain connectivity through short blackouts. It includes six outlets in total—three that are surge-protected only and three that combine surge protection with battery backup—giving you flexibility depending on what devices need uninterrupted power. The 120V output is standard for household electronics, and the unit’s compact size (just over 7 by 4 inches) means it won’t take up much space near your router or entertainment center. It weighs under 4 pounds, making it fairly portable if you need to move it around.

The recommendation to keep the connected load under 80% of the UPS’s rated capacity ensures stable performance, making it best suited for basic home network setups rather than powering multiple high-demand devices simultaneously. This UPS is designed to handle short power interruptions rather than long backup periods. An added bonus is the availability of power management software that lets you monitor the UPS status and safely manage shutdowns. Users should note the 5-foot power cord with a right-angle plug helps with tight spaces but might limit placement options.

This UPS serves as a practical, budget-friendly choice to protect your WiFi and small electronics from sudden outages and surges without requiring extended backup time or heavy load support.

The Amazon Basics Standby UPS Battery Backup is a robust option for those looking to keep their WiFi routers and other electronics powered during outages. With a battery capacity of 600VA and 360W, it is well-suited for various devices, including home networks, desktop computers, and IoT gadgets. One of its key strengths is the provision of 8 outlets, which include 4 that are surge-protected and 4 that provide both surge protection and battery backup. This flexibility allows users to connect multiple devices while ensuring they remain protected during power surges and outages.

The compact size of the unit makes it easy to integrate into different spaces without taking up much room. Its quick recharge time and the ability to keep devices powered long enough for safe shutdown during extended outages are notable advantages, especially for those who rely heavily on their internet connectivity for work or entertainment.

However, there are some drawbacks to consider. The system's optimal performance is best achieved when the load is kept below 80% of its rated capacity, which may require careful management of connected devices. Additionally, while it's quite capable for short interruptions, the runtime during longer outages can be limited, particularly if several high-power devices are connected. The 5-foot power cord, while generally sufficient, may not reach all outlets in larger spaces. Lastly, the initial setup of power management software might be a bit challenging for non-tech-savvy users.

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.