BLUETTI vs EcoFlow: 6 Solar Generators by Specs and Price

How do these solar generators rank on stored energy per dollar?

The Elite 400 ranks #1 of 6 on stored energy per dollar, at 2.74 Wh/$ and $1,399.00 at BLUETTI. Next in rank order are the AC180 Solar at #2 of 6 and the Elite 300 at #3 of 6.

The Elite 200 V2 holds #4 of 6, the DELTA 3 Ultra Series #5 of 6, and the DELTA 3 Classic #6 of 6 at 2.05 Wh/$. Rank here reflects stored energy per dollar, not solar charging speed, output or weight.

At a glance

Product	Best current price	Watt-hours per dollar	Value rank
BLUETTI Elite 400	$1,399.00 at BLUETTI	2.74 Wh/$	#1 of 6
BLUETTI AC180 Solar	$449.00 at BLUETTI	2.57 Wh/$	#2 of 6
BLUETTI Elite 300	$1,199.00 at BLUETTI	2.51 Wh/$	#3 of 6
BLUETTI Elite 200 V2	$899.00 at BLUETTI	2.31 Wh/$	#4 of 6
EcoFlow DELTA 3 Ultra Series	$1,349.00 at EcoFlow	2.28 Wh/$	#5 of 6
EcoFlow DELTA 3 Classic	$499.00 at EcoFlow	2.05 Wh/$	#6 of 6

What solar input does the Elite 400 accept?

BLUETTI lists 1000 W of max solar input for the Elite 400, with an MPPT minimum of 12 V, an input limit of 60 V and a current limit of 20 A. BLUETTI lists the solar connector as xt60. BLUETTI lists third-party panels as a yes.

Using that 1000 W figure and the listed 3840 Wh, the calculated fastest full solar refill is 3.8 hours. BLUETTI lists its size as 16.8 in long, 11.3 in wide and 19.3 in tall. BLUETTI rates continuous AC output at 2600 W, which falls in the 2000 W or more of continuous AC output group.

For moving it, there is a pull-out handle and wheels, and the listed weight of 85.98 lb puts it in the heavy (over 50 lb) class. Plugs include 4 AC outlets and 1 car port. BLUETTI lists a discharge floor of -20 °C.

BLUETTI lists a charging range that starts at 0 °C. It cannot add batteries. The listed warranty is 5 years.

Which connector and voltage range does the AC180 Solar use?

The AC180 Solar uses a dc7909 solar connector, and BLUETTI lists an MPPT minimum of 12 V and limits of 60 V and 10 A. BLUETTI lists max solar input at 500 W. At that max, the calculated fastest full solar refill for its listed 1152 Wh is 2.3 hours.

BLUETTI rates continuous output at 1800 W and surge at 2700 W. BLUETTI lists a UPS switchover of 20 ms at most. The price at BLUETTI is $449.00, and the warranty runs 5 years.

What is the solar limit on the Elite 300?

BLUETTI lists 1200 W of max solar input for the Elite 300, above the 1000 W listed for the Elite 400 and the Elite 200 V2. Its input limits are 60 V and 22 A, with an MPPT minimum of 12 V. With a listed 3014 Wh, the calculated fastest full solar refill at that max comes to 2.5 hours.

Pass-through charging is listed as yes. BLUETTI lists third-party solar panels as supported: yes. Its charging range runs from 0 °C to 40 °C, and BLUETTI lists a discharge floor of -20 °C.

BLUETTI lists a weight of 57.98 lb and a size of 14.41 in long, 12.01 in wide and 11.71 in tall. There are 2 USB-C ports and 2 USB-A ports alongside 4 AC outlets. BLUETTI sells it for $1,199.00.

How long does the Elite 200 V2 need to recharge?

For the Elite 200 V2, BLUETTI lists a wall recharge of 1.4 hours in turbo mode, 1.6 hours in standard mode and 3 hours in silent mode. From solar at 1000 W, BLUETTI lists 2.4 hours. Storage is listed at 2073.6 Wh, and continuous output is rated at 2600 W.

Its listed weight is 53.35 lb, and BLUETTI gives the height as 12.74 in, the length as 13.78 in and the width as 9.84 in. BLUETTI also lists 3900 W of power lifting output and a UPS switchover of 15 ms at most. Its warranty is listed at 5 years.

Its price at BLUETTI is $899.00.

How many solar ports does the DELTA 3 Ultra Series have?

The DELTA 3 Ultra Series has 2 ports for solar input, and EcoFlow lists 800 W of max solar input. EcoFlow gives input limits of 60 V and 18 A and an MPPT minimum of 11 V, with an xt60i connector. From that max input and its listed 3072 Wh, the calculated fastest full solar refill is 3.8 hours.

EcoFlow rates continuous output at 3600 W with a 7200 W surge. At a listed 72.1 lb, it sits in the heavy (over 50 lb) class. EcoFlow gives its size as 24.6 in tall, 15.6 in long and 12.9 in wide.

EcoFlow lists a discharge floor of -10 °C and a charging range that starts at 0 °C. Pass-through charging is a yes, and the price at EcoFlow is $1,349.00.

How light is the DELTA 3 Classic?

EcoFlow lists the DELTA 3 Classic at 26.6 lb, which places it in the easy to carry (under 30 lb) class. Solar input is rated at 500 W through an xt60i connector. The calculated fastest full solar refill at that max is 2.0 hours.

EcoFlow lists 1024 Wh of storage and 1800 W of continuous output. Its warranty lasts 5 years, that is 3 years as standard, plus 2 more when you register it in the EcoFlow app. EcoFlow's current price is $499.00.

Its UPS switchover is listed at 10 ms at most, and pass-through charging is a yes. It cannot add batteries.

Which specs should you line up side by side?

Compare each unit's listed max solar input, input voltage limit and current limit with your panel's ratings. Check the solar connector listed for each unit against the plug on your panel. Weight and size decide where a unit can be stored and how often you will want to lift it.

If you charge in cold weather, look at the lowest listed charging temperature. Weigh stored energy per dollar alongside solar input and weight rather than on its own.