EcoFlow DELTA 2 Max + DELTA 2 Max Extra Battery
Sku: D2M-US-EB
• Expandable capacity - 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.
• Huge AC output - With X-Boost mode get up to 3400W output power to run 99% of home appliances. Power 15 devices at once including 6 AC outlets.
• Fastest recharging - World's fastest AC recharging and X-Stream dual AC+Solar charging speeds. Up to 1000W solar input to charge in as fast as 2.3 hours.
• Capture more energy - 99% MPPT efficiency maximizes solar generation anytime.
• Customized in-app energy management - Prioritize solar or AC charging, view input and output power, battery levels and more.
• 5-year warranty
Increase the capacity of DELTA 2 Max with an extra 2048Wh.

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.


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.

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.


DELTA 2 Max Specs
Extra Battery
Supports up to two DELTA 2 Max Smart Extra Batteries / DELTA Max Smart Extra Battery
AC Output
6 outlets, 2400W total (Surge 4800W)
Max Device(s) Power (with X-Boost)
USB-A Output
2 ports, 5V, 2.4A, 12W Max per port
USB-A Fast Charge
2 ports, 5V, 2.4A / 9V, 2A / 12V, 1.5A, 18W Max
USB-C Output
2 ports, 5/9/12/15/20V, 5A, 100W Max per port
Car Power Output
1 port, 12.6V, 10A, 126W Max
DC5521 Output
2 ports, 12.6V, 3A, 38W Max per port
AC Charging
X-stream Fast Charge 1800W, 15A
AC Input Voltage
100-120V~ max. 15A 50Hz/60Hz
Solar Charging
11-60V 15A, single port 500W; dual port 1,000W
Car Charging
Support 12V/24V battery, 8A
EcoFlow WAVE & WAVE 2 & GLACIER & Smart Generator
Cycle Life
3000 cycles to 80+% capacity
Dimensions
497 × 242 × 305 mm /19.6 × 9.5 × 12 in
DELTA 2 Max Smart Extra Battery Specs
Battery
LFP chemistry, 3000 cycles to >80% capacity
Dimension
464 × 235 × 283 mm (18 × 9 × 11 in)
What’s in the box
Extra Battery Cable User Manual Warranty Card
Compatible with
DELTA 2 / DELTA Max 2000/ DELTA 2 Max