9 Best Backup Power Supply For Refrigerator 2025 in the United States

The Jackery Portable Power Station Explorer 300 is a versatile and lightweight backup power supply option, especially useful for situations like camping, travel, and power outages. It has a power capacity of 293Wh and can deliver up to 300 watts of stable power, making it suitable to keep smaller appliances like a refrigerator running for a limited time. Its standout feature is the quick recharge capability, where it can reach 80% charge in just 2 hours through a wall outlet combined with the USB-C port. Additionally, it supports solar charging, which is a great option for extended outdoor use.

The device is also equipped with multiple ports, which means you can power several devices simultaneously, from laptops to cameras. Weighing just 7.1 pounds, it is highly portable and easy to carry around. The safety features, including Pure Sine Wave AC outlets, ensure that your devices are protected from power surges.

One notable limitation is the relatively short runtime of about 5 hours under moderate use. This might not be sufficient for longer outages without recharging. Furthermore, while it’s a great portable option, its power capacity may not be enough for larger refrigerators or extended periods without access to recharging options. If you are looking for an emergency backup power supply for short-term needs or outdoor activities, the Jackery Explorer 300 is a reliable and convenient choice.

The EF ECOFLOW DELTA Pro Extra Battery 3600Wh offers a robust solution for backing up your refrigerator during power outages. With a high power capacity of up to 3600 watts and expandable up to 7200Wh with an extra battery, this unit can easily support essential appliances for extended periods.

The battery type is long-lasting LFP (Lithium Iron Phosphate), which is known for its durability and safety. The device boasts a fast recharge time of 2.7 hours, ensuring you can get back up and running quickly during emergencies. Additionally, it supports multiple charging methods, enhancing its versatility for use in various situations, including home use, camping, and RVs.

Its portability might be an issue due to its weight of 105 pounds, making it less convenient to move around frequently. Safety features are robust, with clean and safe power delivery and smart control via the EcoFlow app, allowing remote monitoring and management. The LCD screen also provides real-time information on output, input, remaining charge, and time remaining. Despite its hefty size and weight posing a challenge for users needing a more portable solution, it remains a strong contender for reliable and efficient backup power supply for your refrigerator during blackouts or other emergencies.

The EnginStar Portable Power Station features a 296Wh lithium-ion battery with a 300W continuous output and 500W surge capacity, suitable for running small refrigerators and other essential devices during outages or camping. Its pure sine wave AC outlets safely power sensitive electronics like laptops and CPAP machines. Weighing approximately 6.5 pounds and designed for portability, it is convenient to carry for outdoor activities. Multiple output ports allow charging several devices simultaneously, enhancing versatility. Safety is addressed with protections against overcharge, short circuits, and overload, providing peace of mind. Charging options include wall outlet, car socket, or compatible solar panels (sold separately), with a full recharge taking about 7 hours under optimal conditions.

With a 296Wh capacity, this unit is more suitable for mini-fridges or essential small appliances rather than powering a full-size refrigerator for extended periods. Solar charging requires additional equipment, and the 12-month limited warranty may be considered brief by some. This power station serves well as a lightweight, portable backup for short-term use or maintaining critical devices during emergencies, while heavier-duty or longer-term refrigerator backup needs may call for a unit with larger capacity.