The 10 Smallest Battery Backup Of 2024, Tested By Our Experts

This uninterruptible power supply (UPS) offers a reliable battery backup power of 600VA / 330W, ensuring your devices stay powered during unexpected outages. With seven outlets, five providing battery backup and surge protection, and two offering surge protection, this UPS offers comprehensive security for your valuable equipment. Additionally, it features a convenient USB charger port (1.5A) for charging cell phones and small portable electronics.

The UPS has a 5-foot power cord and a right-angle 3-prong wall plug (NEMA 5-15P), allowing easy placement and installation. It can also be wall-mounted, providing flexibility in setting up your power backup system. The package includes free power-management software for Windows, while Mac OS users can utilize their native "Energy Saver" settings for efficient power management. With its robust battery backup power, multiple outlets for surge protection, and the added convenience of a USB charger port, this UPS ensures your devices remain operational and protected during a power outage. However, its initial setup process may be a bit tricky. 

Introducing a compact yet powerful Uninterruptible Power Supply (UPS) to safeguard your home network, IoT devices, and media equipment during power outages. With a 400VA / 255W battery backup, this UPS offers an ideal solution to protect your devices from unexpected power disruptions. It includes six outlets, three surge-protected outlets, and three surge-protected/battery-backup outlets, ensuring comprehensive protection against power surges.

Designed for easy integration, this UPS features a 5-foot cord, a NEMA 5-15P right-angle plug, and a 45-degree offset plug, making it compatible with various home and office setups. Its compact size allows it to seamlessly fit into your living room, home office, or entertainment center without taking up much space. This UPS provides a reliable power protection solution while minimizing the footprint in your environment. Thanks to their robust battery backup, surge protection capabilities, and compact design, your devices will remain safeguarded. However, its battery life could be better.

This APC UPS offers a reliable battery backup power supply of 425VA / 225W, ensuring uninterrupted power for your virtual devices. With six outlets in total, including four outlets providing UPS battery backup and surge protection, along with two outlets offering surge protection only, this UPS delivers comprehensive security for your valuable electronics. 

Moreover, it also comes with a 5-foot power cord and a right-angle 3-prong wall plug (NEMA 5-15P), allowing for easy and convenient installation. It is also wall-mountable, providing flexibility in placement to suit your specific needs. During power outages, this APC UPS is a reliable backup power supply for critical electronics such as WiFi routers, ensuring they remain operational and connected. Knowing that your essential devices are protected from power disruptions and voltage surges offers peace of mind. Nevertheless, it may sometimes produce a beep sound while starting.

Do you need a reliable device to keep your essential devices operational during a blackout? Look no further than this compact solution. It is the perfect choice for individuals who want to ensure an uninterrupted power supply for their router, modem, security camera, smartphone, fax machine, fingerprint recorder, DSL, and other critical devices during power outages. The mini UPS offers two input options: a 12V DC adapter for faster charging and a 5V USB input for slower charging. This versatility allows for easy integration into any home or office setup.

Additionally, it is equipped with a built-in 10000mAh 37Wh battery and a standard USB port, serving as a functional power bank. It provides multiple output options, making it highly versatile and capable of supporting various devices with a current below 2A. Safety is a top priority, and this mini device incorporates innovative protections such as short circuit protection, voltage fluctuation protection, overcharge protection, over-discharge protection, and temperature protection. Rest assured that your devices remain secure and well-protected even during unexpected power outages. Nevertheless, the output only supports current below 2A.

This high-performance backup battery power supply boasts an impressive 850VA / 450W capacity, ensuring reliable power backup for your devices. With nine outlets, including six UPS battery backup outlets with surge protection and three outlets providing surge protection only, this power supply offers comprehensive security for your valuable electronics. 

For added convenience, this UPS features two USB charger ports (2.4A shared), allowing you to charge your USB devices conveniently. The 5-foot power cord and right-angle 3-prong wall plug (NEMA 5-15P) make installation a breeze, while the wall-mountable design provides flexibility in placement. The UPS includes free power-management software for Windows PCs, offering enhanced control and monitoring capabilities. Mac OS users can utilize their native "Energy Saver" settings for efficient power management. The only downside of this device is that it may be a bit noisy. 

The UPS provides essential protection against damaging surges, spikes, and power outages, ensuring the safety of your valuable devices. It offers the convenience of USB communications, allowing you to receive real-time notifications and execute controlled shutdowns through the free software download. Equipped with eight outlets, including four surge-only outlets and four outlets providing both battery backup and surge protection, the UPS offers comprehensive security for your electronic equipment.

Additionally, it features two outlets specifically designed to accommodate transformer-block plugs, making it suitable for various devices. This UPS safeguards your electrical equipment and provides surge protection for RJ45/11 and Coax data lines. This added feature ensures that your data lines remain secure during surges, preserving the integrity of your network connections. Unfortunately, its provided cable may be a bit short. 

Equipped with eight outlets, including four surge-only and four battery & surge outlets (with two outlets designed to accommodate transformer-block plugs), this UPS is ideal for safeguarding sensitive home or office equipment from power fluctuations. Including surge protection for RJ45/11 ensures that data lines remain protected during surges. Additionally, this UPS is Energy Star-certified, guaranteeing high performance and environmental friendliness by meeting stringent environmental requirements.

The LCD makes monitoring vital parameters such as estimated run time, load capacity, battery status, input/output voltage, and frequency effortless. Furthermore, the USB communications feature enables real-time notifications and controlled shutdowns through the provided software download. With its versatile features and reliable performance, this UPS is a must-have for individuals seeking to protect their devices and maintain a continuous power supply. However, this device may not support high-power demanding devices such as powerful PCs or high-performance CPUs.