This massive EcoFlow home backup system is $2,699 off, and comes with a free solar panel

It's powerful enough to run almost anything, with a 4000W output and both 120V and 240V options.
 By 
Tabitha Britt
 on 
All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Mashable may earn an affiliate commission.
The ecoflow delta pro 3 against a purple and pink background.
Get 8kWh of backup power, a free solar panel, and save $2,699 with this limited-time bundle. Credit: Mashable Photo Composite | EcoFlow

SAVE 43% (AND GET A FREEBIE): As of Oct. 20, the EF EcoFlow Delta Pro 3 is on sale for $3,599, down from $6,298, at Amazon. That's a 43% discount and a $2,699 price cut. On top of that, because the purchase is over $2,000, it qualifies for a free gift from EcoFlow — in this case, a free portable solar panel to get you started with off-grid charging.


$3,499 at Amazon
$3,999 Save $500
 

Having a small portable power station is great for camping or keeping your phone charged during a quick outage, but if you're in a multi-day blackout situation or need to power a larger appliance, those smaller options probably won't cut it. If you need real backup power but hate the idea of a noisy, smelly gas generator, then these massive battery systems are what you should be looking at.

As of Oct. 20, the EF EcoFlow Delta Pro 3 is on sale for $3,599, down from $6,298, at Amazon. That's a 43% discount and a $2,699 price cut. On top of that, because the purchase is over $2,000, it qualifies for a free gift from EcoFlow — in this case, a free portable solar panel to get you started with off-grid charging.

The bundle gets you the Delta Pro 3 (which has 4kWh on its own) plus an extra 4kWh battery. That's 8kWh capacity right out of the box. Need even more? You can keep stacking batteries up to 48kWh. It's powerful enough to run almost anything, with a 4000W output and both 120V and 240V options, so it can handle big stuff like a central AC unit or even charge an RV.

And while these stats may seem intimidating, it's designed to be pretty user-friendly. It has a super-fast 10ms UPS switch-over (which means your connected devices won't even blink if the power goes out). It uses long-lasting LFP batteries and is surprisingly quiet when running, humming along at just 30 dB thanks to EcoFlow's X-Quiet tech.

Mashable Image
Tabitha Britt
Freelance Writer

Tabitha Britt is an award-winning freelance journalist, editor, and SEO/AEO strategist. Aside from reviewing dating apps and sex toys for Mashable, Tabitha is also the founding editor-in-chief of DO YOU ENDO — a digital magazine by individuals with endometriosis, for individuals with endometriosis. She has a Master's degree in Creative Publishing and Critical Journalism from The New School for Social Research and is a grad of Sextech School. You can find more of her work in various online publications, including National Geographic, Glamour, Better Homes & Gardens, and Everyday Health.

Mashable Potato

Recommended For You

Trending on Mashable
NYT Connections hints today: Clues, answers for April 3, 2026
Connections game on a smartphone

NYT Connections hints today: Clues, answers for April 4, 2026
Connections game on a smartphone

Wordle today: Answer, hints for April 3, 2026
Wordle game on a smartphone

Google launches Gemma 4, a new open-source model: How to try it
Google Gemma

Wordle today: Answer, hints for April 4, 2026
Wordle game on a smartphone
The biggest stories of the day delivered to your inbox.
These newsletters may contain advertising, deals, or affiliate links. By clicking Subscribe, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy.
Thanks for signing up. See you at your inbox!