EcoFlow | DELTA 2 Max + EcoFlow DELTA 2 Max Smart Extra Battery
DELTA 2 Max + EcoFlow DELTA 2 Max Smart Extra Battery – Expandable Backup Power for Home & Outdoors
Take your portable power to the next level with the DELTA 2 Max + EcoFlow DELTA 2 Max Smart Extra Battery bundle. Designed for those who need reliable, long-lasting energy storage, this combo offers high output, exceptional lifespan, and expandable capacity—perfect for home backup, RV life, off-grid setups, or extended outdoor use.
Key Features
Massive Expandable Capacity
Start with 2048Wh and double it by adding the DELTA 2 Max Smart Extra Battery to reach an impressive 4096Wh. Ideal for longer outages or high-demand devices.
Reliable LFP Battery Chemistry
Both units use advanced LiFePO4 batteries with 3000+ full charge cycles, giving you up to 10 years of daily use before reaching 80% capacity.
Power More Devices, Anywhere
With up to 3400W of output power using X-Boost mode, power everything from home appliances to workshop tools and outdoor gear.
Seamless Plug-and-Play Design
Adding the Smart Extra Battery is simple and wireless—just plug it in and you're ready to go. Use the EcoFlow app to monitor and manage both units in real-time.
Compact and Portable
Despite the power, both units are easy to transport, store, and set up wherever needed.
Perfect For:
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Emergency home energy storage
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RV, van life, or camping power
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Solar energy systems
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Off-grid cabins or workshops
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Day-to-day backup for sensitive devices
2-6kWh expandable capacity to fit your energy storage needs. Add up to two DELTA 2 Max Smart Extra Batteries to hit a capacity of 6144wh. Ideal for home backup, caravanning, outdoors or even everyday use.
10-Year Long-lasting LFP Battery
Durable, Safe, Lightweight
With its upgraded LFP battery chemistry, DELTA 2 Max has a lifespan of 3000 complete cycles until it reduces to 80% capacity. You'll get pretty much 10 years of power, even if you use it every day. That's 6× longer than other power stations with a similar capacity and output.
LFP Battery Chemistry
That's 6× longer than other power stations with a similar capacity and output.
Advanced BMS Protection
A built-in battery management system regulates vitals, including voltage, current, and temperature, keeping DELTA 2 Max safe, secure, and built to stand the test of time.
Protective Layers Inside and Out
Run 99% of Appliances with X-Boost
Power pretty much anything with up to 3400W Output
DELTA Max powers almost all the devices you need with a large 2400W AC output. With X-Boost proprietary technology, run appliances with an output of up to 3400W. Compared with similar portable power stations, DELTA 2 Max can power more devices while also preventing overloading and overheating.
120V Home Backup: Power through outages
Power your essential appliances with a hefty 2400W AC output by connecting DELTA 2 Max (2kWh) and up to two Smart Extra Batteries (6kWh) with your home's transfer switch for partial home backup. With a plug-and-play design, it's easier than ever to prepare for blackouts.
Power for the entire family
2048Wh Capacity
A generous 2048Wh capacity makes DELTA 2 Max ideal for home backup, running your essentials for hours. Using your transfer switch, or plugged in directly, keep your fridge on and stop food from spoiling for up to 14 hours. With its lightweight design, DELTA 2 Max is portable enough to grab and go on the next camping trip.
Home Backup
RVing & Outdoors
DIY Projects
Filmmaking & Photography 
Expandable up to 6kWh
Triple the power
Take DELTA 2 Max with you anywhere as a solo unit or connect it with two Extra Batteries for up to 6kWh of home backup.
The world's fastest 43 minute AC+solar recharge
Fuel Up 80% in Only 43 Mins*
With DELTA 2 Max's upgraded tech, combine up to 1000W solar input with AC for world-leading charging speeds. In only 43 min get an 80% charge. Or stick with AC for an 80% charge in a speedy 1.1 hour.
*When combined AC and solar input is 2400W using 1800W AC input and a maximum of 600W solar input.
Dual Solar Input System with Independent MPPT Technology
Maximize solar generation by harnessing multiple PV sources
Maximize the potential of solar energy by simultaneously utilizing multiple photovoltaic (PV) sources with our innovative dual solar input design, each with its independent Maximum Power Point Tracking (MPPT) technology. Enjoy a seamless integration of solar power into your home or business whether you have multiple solar panels or a combination of rooftop and ground-mounted installations, making the most of every ray of sunshine.
Customized In-App Energy Management
Take control of your power
Smart Automatic Control
Save more on electricity billsCustomize the working time of DELTA 2 Max to avoid peak rates.
AC Always On
Experience peace of mind during power outages With our all-new AC Always On Mode, the AC power button stays on, even during a power outage or after the grid power is back, keeping your appliances powered no matter what.
Energy Management
Easily adjust power Easily adjust AC or Solar input to fit your needs: backup power reserve or energy savings.Prioritize solar energy input via the EcoFlow app when using X-Stream AC + solar dual charging.
Low Battery Reminder
Always power ready Get a notification via the app when the battery hits a low.
As Quiet as 30 dB
Peaceful charging
At only 30 dB, DELTA 2 Max is quieter than other 2kWh power stations on the market.
Are Solar Guys Pro Authorized Retailers?
Yes! We are proud to be one of the few online retailers who are authorized retailers for every single product we carry!
When Will My Order Ship?
Most orders ship within 1–3 business days. You’ll get a tracking number as soon as it ships via email!
Do We Accept Returns?
Yes absolutely, we have a no-hassle, 30-day return policy on all items! To refer to the full policy, click HERE
Are Products Brand New?
Yes! All products on Solar Guys Pro are 100% brand-new and in perfect condition.
We do not sell any used or refurbished items.
Frequently Asked Questions
Get your 30% Tax Solar Credit!
Unlock substantial savings with the government's Solar Tax Credit, which offers a robust 30% deduction on the installation costs of solar systems. This attractive incentive is your ticket to leveraging solar energy's eco-friendly potential while enjoying the financial benefits.
At Solar Guys Pro, our commitment is to you. Please be reminded that our expertise does not extend to tax advice. Nonetheless, our dedicated staff is eager to guide you through the process and ensure you capitalize on this exceptional offer.
Contact us now to learn more!