If the past few years have taught us anything, it is that we need to prepare for the unexpected. Since everything you rely on every day (such as watches, laptops, and mobile phones) needs to be charged, stocking battery packs is a good starting point. 

Whether you are looking for generators or solar models, this list has something for everyone. If you use the code SAVE15NOV at checkout, you can rate any of these spare batteries at the special early price of Black Friday.

This solar cell phone charger is about the same size as your smart phone and does not require a wall outlet to charge it. It is very suitable for people who are always in low battery mode. Use code SAVE15NOV for only US$50.99 (usually US$129).

This waterproof solar panel and power bank can actually charge your phone as quickly as a wall socket, but you will be completely cordless. Use the code SAVE15NOV at checkout for only US$98.60 (usually US$139).

This backup power station is ideal for hurricanes, evacuation or just random power outages. Enter the code SAVE15NOV at checkout and you can take it home for only $807.49 (usually $1,299).

In the event of an emergency, you can run the included generator with two solar panels, which will continue to help your home run on power. Use the code SAVE15NOV at checkout for only $1,189.15 (usually $1,897).

This foldable 110W solar panel keeps you truly away from the grid, and if you want, it allows you to work in the field. Use code SAVE15NOV to save more than 30%, and you can get it for only $246.49 (usually $399).

This super powerful charging station can charge up to 13 different devices at the same time. So, next time you run out of electricity, you won't have to deal with family struggles. Enter the code SAVE15NOV at checkout, and you can get it for only US$977.49 (usually US$1399).

Fully charge this mobile power bank within 1.6 hours, and then let it power all your devices with a capacity of 720wh. Use the code SAVE15NOV at checkout to save an additional 15%, and only pay $535.49 (usually $649).

Use this 110W solar panel and RIVER power station to get an uninterrupted power supply that can charge all your equipment and electrical appliances. Use code SAVE15NOV to enjoy an additional 15% discount for only US$636.64 (usually US$748).

EcoFlow River Pro has three times the 600W AC power outlet and 720Wh charging capacity. It really does all of this. For a limited time, when you enter the code SAVE15NOV at the checkout, you can take it home for only $832.99 (usually $1,049).

With a high conversion efficiency of 22%, with this 160W solar panel, you can reuse your equipment faster. Enter the code SAVE15NOV at checkout for only $339.15 (usually $449).

This mobile power bank uses X-Stream technology, and the charging speed is 10 times that of most portable power stations on the market. Use the code SAVE15NOV to get 500 USD off and only pay 1,223.15 USD (usually 1,798 USD).

This waterproof solar panel and power bank work together to help you charge up to 13 devices at the same time. Use the coupon code SAVE15NOV to take both home for just $1,274.15 (usually $1,849) for a limited time.

With a capacity of 576 Wh, you can charge more devices for longer periods of time. If the power station itself runs out of electricity, it will charge from 0% to 80% in just one hour. Use the code SAVE15NOV at checkout for only US$382.46 (usually US$599).

When you turn on the X-boost mode, you can charge 1800W for some devices, which is indeed an amazing feat. When you enter SAVE15NOV at checkout, you can purchase this power bank and solar panel combination for only US$586.46 (usually US$889), ready for anything.

Using EcoFlow River Pro bank can power up to 10 devices at the same time. When the battery runs out, please use the 160W solar panel included in this bundle to charge. When you enter the code SAVE15NOV at the checkout, you can get both products for only US$849.96 (usually US$1,099) for a limited time.