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The Most Epic Review of the $1300 SOLAR Battery - EcoFlo Delta1300

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Review Test EcoFlow Delta 1300

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Review Test EcoFlow Delta 1300 – I mainly promote DIY that’s do-it-yourself, build it yourself, make it yourself, that sort of stuff right, but I do realize that there are people who don’t have the time or the inclination to make something from scratch, but you still need a battery.

The Most Epic Review of the $1300 SOLAR Battery – EcoFlow Delta1300
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Review Test EcoFlow Delta 1300Review Test EcoFlow Delta 1300
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Review Test EcoFlow Delta 1300

Everybody needs a battery, they just don’t know it yet, so if you’re one of these people that has realized that you need a battery, but you don’t want to make one. Well today, I have just the thing for you. I’m going to review a battery that’s already made ready to go, is getting to it.

There is a new breed of battery-based power packs on the market there. Batteries are amazing, but not just any batteries. I’m talking about lithium battery cells. They are the reason the electric car has made. A comeback recently, they are the reason we carry a supercomputer in our pockets that mostly lasts us all day on a single charge, but can they really compete against establishing technologies for providing us with power.

We shall see today. We are reviewing the delta 1300 model EF3 pro. This is a 31 pound, 1.3-kilowatt-hour battery box, capable of delivering 1,800 watts of continuous power, and up to 3,300 watts of search power at 120 volts 60 Hertz.

It has 6 AC plugs to USB, 12 watts sockets to USB fast charge, 28 watts sockets to USB, 60 watts sockets, and one car power 13.6 volts on the input side. It has one AC charger input which is rated at 1200 watts max and one DC solar charger input rated at 400 watts max, ten to twenty-six volts.

EcoFlow Delta 1300 Specs

General Info
Net Weight30.9lbs (14kg)
Dimension15.7 x 8.3 x 10.6 in (40 x 21 x 27 cm)
Charge Temperature32-113°F (0-45°C)
Discharge Temperature-4-140°F (-20-60°C)
ColorGray & Black
Warranty24 months


Charge MethodAC Wall Outlet, 12V Car Adaptor, Solar Panel
Full Recharge Time

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  • 1.6 hours (AC)
  • 10-12 Hours (12/24V Car Adaptor)
  • 4 Hours (Using 4x110W Solar Panels simultaneously with full sun)


Battery Info
Cell ChemistryLithium-ion
Shelf Life1 year (after fully charged)
Life Span800 Cycles (80%)
Management Systems



  • BMS, Over Voltage Protection, Overload Protection,
  • Over Temperature Protection, Short Circuit Protection
  • Low-Temperature Protection, Low Voltage Protection,
  • Overcurrent Protection
Testing and certificationUL CE FCC RoHS PSE
Cell Type18650

So, the specs on this product are among the best. I’ve seen them yet, but do they hold up to scrutiny?

EcoFlow Delta 1300 Capacity Test

Let’s test capacity, okay, here we go. We just started our capacity test, let me walk you through my test setup.

First, my load is a 1500 watt heater with three power settings, 500, 1000, and 1500 watts. I will test capacity at all three levels to see if we can see a difference in performance To measure the flow of energy, I will use the onboard power meter, but to verify the readings, I will also be using a Surya tech PR 10 power recorder.

Let’s start the test, okay, so here we go. This reading right here is the power consumption, it will ramp up to around 1500 watts eventually, in the center is the battery level in percentage, and this is an estimation of run time in hours and minutes.

On this side, we have a thermal camera showing the grease in Celsius and finally, this is the most important number the kilowatt-hour reading, one percent, so 950 watt-hours so far. Alright, so there it stopped, it’s got zero percent. So, I ran this test three times at different power levels, and here are the results.

  1. Cycle number one at 1500 watts, I was able to get 1055 watt-hours.
  2. Cycle number two at 1000 watts, I was able to get 1045 watt-hours.
  3. Cycle number three at 500 Watts, I was able to get 1050 watt-hours.

Now, let’s look at the charging cycles.

The first cycle, was right after the 1500 discharge cycle that means the battery was hot, and as a result of that, the system started charging at only 27 once, that eventually ramped up, but that means, that this first cycle took two hours and six minutes to complete, and it took a whole 1.69 kilowatt-hours of energy in.

In the second cycle, the battery was cooler, the system started charging at 700 watts, and that time it only took an hour in 40 minutes, and it took one 0.65 kilowatt-hours in.

on the third cycle, the battery was completely cold, and as a result of that, then it started charging at the full rate which is 1200 watts, and that time it only took an hour and thirty minutes to charge the battery,  and it took 1.66 kilowatt-hours in.

So, the average of all three of these charging cycles as far as, how much energy it took from the wall comes out to be 1.66 kilowatt-hours. One thing to note is, this system is smart enough to take the battery’s temperature into consideration, and instruct the charger to charge slower to protect the life of the battery.

You can watch the full video for another test 🙂

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