Trust in us to deliver the highest quality solar solutions at the guaranteed best price with free delivery and free 30-day returns! Call or Text us every day at +1 (857) 201-0530.
Trust in us to deliver the highest quality solar solutions at the guaranteed best price with free delivery and free 30-day returns! Call or Text us every day at +1 (857) 201-0530.
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EcoFlow DELTA 2 MAX Extra Battery

by EcoFlow
$1,399.00

-Fast & Free Shipping + 30 Day Worry Free Returns + No Sales Tax (Outside of Massachusetts) Secure Yours Today!

-Price Match Guarantee - We Will Match Any Competitors Price!

-We Are A Small Family Owned Business And A Certified Dealer Of EcoFlow

-We donate 1 Year Of Solar Lighting To Our Charitable Partner, Give Power, For Every $100 You Spend

EcoFlow DELTA 2 MAX Extra Battery

Expandable capacity - Increase the capacity of DELTA 2 Max with an extra 2048Wh.

Triple the power - 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, RVing, outdoors or even everyday use.

Built to last 6× longer - Get 10 years of daily use until hitting 80% of its original capacity. That’s down to its LFP battery chemistry giving you 3000+ cycles.
Get up to 30% of your order in rebates through the Residential Clean Energy Credit. Learn More
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EcoFlow DELTA 2 MAX Extra Battery Expandable capacity

Increase the capacity of DELTA 2 Max with an extra 2048Wh.

Triple the power

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

With LFP cells, DELTA 2 Max is safe, durable, and highly efficient.

A rubber anti-slip base and a highly-rated UL94-5VA fire-resistant casing offer multiple layers of protection.

Robust Design

Made with a sturdy one-piece design, DELTA 2 Max is designed for the rough and tumble of portability. Each port is reinforced, protecting them against wear and tear.

Upgraded Tech, Lighter Weight

Even with its upgraded LFP battery, DELTA 2 Max is still 30% lighter than similar power stations on the market.

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.

Power for the entire family

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.

Experience the world's fastest 43 minute 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 solar and AC input is 2400W.

99% MPPT Efficiency

Maximise solar generation during daylight hours

EcoFlow's smart (MPPT) algorithm automatically detects voltage and current in real-time to give you optimum solar generation throughout the day, even during cold and cloudy days. With a solar input of 1000W, connect up to 2 EcoFlow 400W Portable Solar Panels or 4 sets of 220W Bifacial Solar Panels.

Customized In-App Energy Management

Take control of your power

Customized In-App Energy Management
Smart Automatic Control
AC Always-on
Energy Management
Low Battery Reminder

Save more on electricity billsCustomize the working time of DELTA 2 Max to avoid peak rates.

Extensive 5-Year Warranty

With one of the most comprehensive warranties in the industry, we go the extra mile to give you peace of mind.

As Quiet as 30 dB

Peaceful charging

At only 30 dB, DELTA 2 Max is quieter than other 2kWh power stations on the market.

DELTA 2 Series

Expandable LFP Battery Power Solution

DELTA 2 offers capacities of 1-3kWh, while DELTA 2 Max provides energy storage from 2-6kWh. Get 10 years of daily use before hitting 80% of its original capacity. That’s down to its LiFePO4 battery chemistry, giving you 3000 full cycles for a 6× longer life.

Learn More About DELTA 2

DELTA 2 Max Smart Extra Battery Specs

Capacity 2048Wh

Input Port 51.2V, 2000W Max

Output Port 51.2V, 3200W Max

Battery LFP chemistry, 3000 cycles to >80% capacity

Dimension 464 × 235 × 283 mm (18 × 9 × 11 in)

Weight 19kg (42lbs)

What’s in the box Extra Battery Cable User Manual Warranty Card

Compatible with DELTA 2 / DELTA Max 2000/ DELTA 2 Max

Customer Reviews

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Robert Brown
owner

My experience with Solar Altruism is the best it could have possibly been. The products I ordered were shipped in a timely manner and were received in perfect condition. I would highly recommend Solar Altruism as being very trustworthy!

Thanks for your feedback Robert! Let us know if you ever need anything.

-Avery

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For 30 days

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