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Summer storms can knock out power without warning, but you don't have to sit in the dark. Ahead of Amazon Prime Day on Tuesday, save up to 42% on Jackery and Anker power stations and shop power banks and MagSafe chargers, down to just $6 before the big sale.

READ MORE: 40+ early Amazon Prime Day deals worth shopping now

Trending early Prime Day power deals

UGREEN MagSafe charger: $44.99 (25% off)
Portable charger, 2-pack: $17.99 (25% off)
Travel power strip: $16.99 (19% off)
Solar power bank: $25.48 (15% off)
BLuetti Apex 300 with expansion battery: $2,498.99 (14% off)
Oxseryn 4,400-watt gas generator: $279.99 (10% off)

Jackery HomePower 3600 Plus: $1,619 (42% off)

Original price: $2,799

Charge this Jackery power station in just two hours. (Amazon)

What we love: The fast charging capabilities and space for nine devices create a powerful generator.

What to be aware of: It may require a firmware update to use all features.

The Jackery HomePower 3600 Plus is a reliable backup for your home and is currently 42% off — the steepest discount in this roundup. It runs nine devices simultaneously and is built to last more than 10 years. The power station also supports a one-touch manual transfer switch and optional solar panels for added charging.

Anker SOLIX C1000 power station: $399.99 (20% off)

Original price: $499.99

The Anker SOLIX C1000 keeps all of your essential devices running at home. (Amazon)

What we love: The ultra-fast charging and solar recharging keep this power station running constantly.

What to be aware of: The fan noise can be loud.

The Anker SOLIX C1000 makes it easier to stay ready for outages. It produces 1,800 watts of power with 11 charging ports and recharges to 100% in less than an hour. With the app, adjust charging speeds and track your use.

READ MORE: Stock up now: Emergency essentials are on sale ahead of Prime Day

DuroMax 15,000-watt tri-fuel generator: $2,599 (13% off)

Original price: $2,999

This high-watt generator can power up your entire home. (Amazon)

What we love: It comes with a highly durable all-metal frame and dual-fuel option.

What to be aware of: The generator weighs more than 360 pounds.

This DuroMax 15,000-watt generator handles harsh weather while staying portable thanks to the solid-fill wheels. It runs on gas, natural gas or propane, helping ensure power stays on during emergencies. Multiple outlets, including a 50-amp option, support appliances and lights.

Pulsar 7,250-watt dual-fuel generator: $998 (23% off)

Original price: $1,299

Run an entire RV with a Pulsar. (Amazon)

What we love: Start it remotely and double your output by connecting another generator.

What to be aware of: It's a little low on outlets compared to similar models.

Pulsar's compact dual-fuel generator has 6,000 running watts — enough to charge or run basic appliances or all your camping equipment. It comes with a USB-C and USB-A port, an RV-ready plug and a GFCI 120-volt outlet. The built-in inverter keeps sensitive electronics safe from sudden surges.

Westinghouse 18,000 dual-fuel generator: $2,599 (16% off)

Original price: $3,099

This massive generator runs large homes all night. (Amazon)

What we love: The screen displays runtime information, automatically shuts down when oil levels are too low, and it keeps homes running.

What to be aware of: The bulky design can make it difficult to move.

For whole-home power, Westinghouse's 18,000-watt generator has all the features you could want. It provides up to 16 hours of runtime, a 10.5-gallon fuel tank and remote start. The generator also offers the reliable engine Westinghouse is known for and automatically shuts down when oil levels get too low, helping prevent damage.

READ MORE: Heading outdoors? This camping packing list has everything you need, from $6

Generac 2,500-watt gas generator: $485.19 (25% off)

Original price: $649

This gas-powered generator has multiple outlets and is whisper silent. (Amazon)

What we love: The generator is lightweight and stays quiet, ideal for camping or tailgating.

What to be aware of: You may not be able to supply your entire house with power.

Generac's 2,500-watt generator — now at its lowest price in a year — is ideal for travel, thanks to the lightweight design. It runs quietly compared to larger models and has a top-mounted gas spout. The three outlets handle tools, air conditioners and small appliances all at once. Along with two USB ports for charging devices, there is a connection point for linking to larger generators.

EF EcoFlow Delta Pro 3 power station: $2,599 (30% off)

Original price: $3,699

Power all your household appliances from a single station. (Amazon)

What we love: It runs many home essentials quietly, and you can monitor the system through your phone.

What to be aware of: Some reviewers point to its weight as a flaw.

The EF EcoFlow Delta Pro 3 generates up to 4,000 watts of quiet backup power for whole-home use. Charge the power station through an AC outlet or optional solar panels and operate everything from air compressors to well pumps. Monitor and control the entire system from just your phone.

Portable magnetic charger: $19.98 (35% off)

Original price: $30.62

Charge your phone without tangled cables. (Amazon)

What we love: It's compact and free of cords, giving you a travel-ready option.

What to be aware of: Powering multiple devices drains the battery faster.

If you forget to charge your phone before an outage, this portable magnetic option gives you the power you need in a pocket-sized package. For just $20, it can recharge an iPhone 16 once. Use a cable and connect multiple devices simultaneously.

READ MORE: Best early Prime Day tech deals: Save on Apple, Sony, Samsung and more

Portable charger with cables: $34.98 (33% off)

Original price: $51.99

Charge multiple devices simultaneously. (Amazon)

What we love: Built-in cables give you four charging spots, but there are three additional ports as well.

What to be aware of: Some reviewers find the charging capacity is exaggerated.

Avoid clutter with a portable charger that has built-in cords. It has four cables and three additional ports, while a smart LED display shows your battery level at a glance.

MagSafe wireless charger: $5.98 (40% off)

Original price: $9.99

Magnetically connect this charger to your phone and power up fast. (Amazon)

What we love: It offers a fast, cord-free charging experience.

What to be aware of: You still need to plug in the charger, so it's less convenient to use your phone while it charges.

At 40% off, this MagSafe charger powers up your phone without extra bulky cables. Just rest your device on the magnetic pad, and it will get back to full battery in no time. With both USB-C and USB-A connectors, it works with a wide variety of smartphones.

INIU portable charger: $29.99 (19% off)

Original price: $36.99

Get multiple charges for your phone before needing to recharge. (Amazon)

What we love: It's compact, and the built-in cable prevents you from handling long cords.

What to be aware of: It doesn't charge newer iPhones as quickly.

An INIU charger is small enough to fit in your pants pocket. The built-in USB-C cable retracts for ultimate convenience and portability. A full battery lasts up to a week, depending on use, and recharges an iPhone 16 up to four times.

READ MORE: Buy it for life: Durable products worth every dollar (now on sale)

Anker Prime power bank: $279.99 (15% off)

Original price: $329.99

Charge laptops, phones and other devices with this powerful pick. (Amazon)

What we love: The smart display and fast charging make it simple to use.

What to be aware of: There are no cables included, so you'll have to find your own.

Compact yet packed with 300 watts of power, the Anker Prime charger has two USB-C ports and a USB-A port. That's enough to run two MacBook Pros at once. The bank recharges quickly — get to 50% in just 13 minutes.

Other sales from popular brands

Likely in competition with Amazon, many other brands have rolled out sales on generators.

Jackery Explorer 1500 Ultra: $999 (23% off)

Original price: $1,299

Snag this portable Jackery power station with 1,800 watts of juice. (Jackery)

What we love: The rugged design and 1,800 watts keep most appliances and pumps going.

What to be aware of: Larger Jackery models handle whole-home power.

The Jackery Explorer 1500 Ultra delivers 1,800 watts of portable power for camping trips or outages. Waterproof and drop-resistant up to one meter, it is built for harsh weather. The unit runs sump pumps, tools, lights and most appliances, and operates in temperatures as low as five degrees.

Kobalt 5,500-watt dual-fuel generator: $599 (14% off)

Original price: $699

A protective cage and outlet covers help this generator last. (Lowe's)

What we love: Choose between two fuels, and get a long-lasting option with covered outlets.

What to be aware of: Some reviewers find it too heavy to move on their own.

Run this Kobalt generator with either propane or gasoline. With gas, it runs for 9.5 hours, and the simple pull start gets you up and running quickly. Covered outlets stay safe during storms, while the low oil-shutdown system safeguards the engine from damage.

For more deals, visit www.foxnews.com/deals

Champion 4,000-watt dual-fuel generator: $591.50 (21% off)

Original price: $749.99

Use either gas or propane with this generator. (Camping World)

What we love: It runs up to 10 hours on gas or 25 hours on propane.

What to be aware of: It doesn't include USB ports for charging devices.

The Champion 4,000-watt generator operates on gasoline or propane with a carbon monoxide auto shutoff for added safety. It's on the quieter side, which comes in handy during blackouts. Expect up to 10 hours of runtime on gas or up to 25 hours on propane. RV-ready, household and automotive-style outlets support all your essentials.

FAQs

Understanding the world of generators can be complex. To help, we answer some of the most frequently asked questions shoppers wonder about when looking for a generator.

What size generator do I need?

The right generator size depends on how you plan to use it. Smaller models with a few hundred or thousand watts can power basic appliances or a TV while camping. For home backup during outages, many homes need at least 5,000 watts, while larger ones may require a 12,000- or 13,000-watt generator.

How long can a generator run?

Most generators on this list work for up to half a day on a full tank of gas. Many last between eight and 15 hours, depending on the size of their fuel tank.

What are the top generator brands?

Popular generator brands include Honda, Yamaha, Champion and Westinghouse. Honda tends to be sought after the most, with the others following close behind.

If you're an Amazon Prime member, you can get many of these generators sent to your door ASAP. You can join or start a 30-day free trial to start your shopping today.