



EcoFlow DELTA Pro + Smart Extra Battery + 800W Alternator Charger
The portable home battery: DELTA Pro supports a 3.6kWh capacity that can be expanded all the way to 25kWh. The kicker? You can integrate it directly with your home circuits via the Smart Home Panel. Ideal for home backup.
Power pretty much anything: DELTA Pro leads the industry when it comes to AC output. With 3600W you’ve got a portable generator that can power heavy-duty appliances such as dryers, AC units & more. Need even more power? Pair two units together to hit a massive 7200W. Learn more about DELTA Pro >>
Expandable capacity This add-on battery connects with a DELTA Pro to double total capacity to 7200Wh. Connect two of them to DELTA Pro for a staggering 10.8kWh to use off-grid.
Convenient recharging Recharging from solar panels, AC outlets, EV charging stations, or our Smart Generator is easy. Plug the Extra Battery into DELTA Pro and they will recharge and discharge in tandem. Learn more about DELTA Pro Smart Extra Battery >>

Frequently Asked Questions
Do you offer free shipping?
Yes, we offer free shipping on all orders across the continental US.
How do I know which product is right for me?
Our collection pages include helpful guides and specs. Still unsure? Reach out to our expert support team for help.
Do your products work with smart home systems like Alexa or Google Home?
Many of our products are compatible with major smart home ecosystems. Check the product page for specific integrations.
Do you price match?
Yes, we offer a Price Match Guarantee. If you find the same item for less elsewhere, let us know and we’ll match it.
Reviews
– Daniel R.
Perfect Power Solution for Outdoor & Home Use
We were looking for a reliable and eco-friendly power station, and this one exceeded our expectations. It runs quietly, charges fast, and handles all our essential devices without any issues. The build quality feels premium, and it’s extremely easy to use. Perfect for home backup, camping, and outdoor work.
– Melissa T.
Quiet, Powerful & Absolutely Reliable
This power station is a game changer. It’s super quiet, has no fuel smell, and delivers consistent power for our appliances. We’ve used it for several hours straight and it performed flawlessly. Shipping was fast and packaging was secure. Smart Haven Stores delivered exactly what was promised.
– Kevin M.
Excellent Performance & Great Value
We’ve tested this unit for daily use as well as emergencies, and it performs exceptionally well. The battery life is impressive, and the display makes it easy to monitor usage. It’s compact yet powerful, making it ideal for both indoor and outdoor needs. Definitely one of the best purchases we’ve made.



