In 2026, home lab enthusiasts and experimenters are constantly seeking reliable uninterruptible power supplies (UPSes) that won't break the bank. Finding the best UPS under $100 can be challenging, but there are several models that offer excellent performance for their price. Whether you're protecting a small server, a Raspberry Pi setup, or a home automation system, this guide highlights top options available this year.

What to Look for in a Budget UPS

Before choosing a UPS under $100, consider these key features:

  • Capacity (VA and Watts): Ensure it can handle your devices' power requirements.
  • Battery Runtime: Look for models that provide enough backup time for safe shutdowns.
  • Number of Outlets: Check if it has enough outlets for your equipment.
  • Surge Protection: Protects against voltage spikes.
  • Size and Portability: Compact models are ideal for home labs.

Top UPS Models Under $100 in 2026

Based on performance, user reviews, and features, these are the best UPS options under $100 this year:

1. APC Back-UPS BE600M1

The APC Back-UPS BE600M1 is a popular choice among home experimenters. It offers 600VA / 330W capacity, providing enough backup for small devices and Raspberry Pi setups. It features six outlets, including three with surge protection, and offers around 10 minutes of runtime at half load. Its compact design makes it easy to place on a desk or shelf.

2. CyberPower CP850AVRLCD

This model provides 850VA / 510W capacity, ideal for multiple devices. It includes an LCD display showing real-time status, battery health, and load level. With eight outlets (four surge-only), it offers reliable power protection and approximately 8-10 minutes of backup at half load. Its user-friendly interface makes it a favorite among home lab enthusiasts.

3. APC UPS Battery Backup & Surge Protector (BE650G1)

The APC BE650G1 is an affordable, reliable UPS with 650VA / 360W capacity. It provides 6 outlets, with 3 surge-protected and battery-backed. It offers around 8 minutes of backup time at half load, enough for safe shutdowns of critical devices. Its straightforward design makes it suitable for beginners and experienced experimenters alike.

Additional Tips for Choosing a UPS

When selecting a UPS under $100, consider the following:

  • Compatibility: Ensure it supports your device's power requirements.
  • Brand Reputation: Opt for trusted brands like APC, CyberPower, or Eaton.
  • Battery Replacement: Check if batteries are easily replaceable and affordable.
  • Warranty and Support: Longer warranties provide peace of mind.

Conclusion

For home labs and experimentation in 2026, these UPS models under $100 offer excellent value, reliable backup power, and essential protections. By considering your specific needs and the features outlined, you can select a model that keeps your projects running smoothly without overspending.