Customer reviews from ecoflow
EcoFlow - DELTA 2 Max 2048Wh Smart Extra Battery
Average customer rating
4.8
(24 Reviews)
Rating breakdown 24 reviews
5 Stars
18
4 Stars
6
3 Stars
0
2 Stars
0
1 Star
0
Customer Reviews for EcoFlow - DELTA 2 Max 2048Wh Smart Extra Battery
Posted by: Stewart 2023
from Texas
Frequency of use:Daily
Gender:Male
Verified Purchase:Yes
Bought this product for a backup and use this to power my iceco refrigerator. Would love EcoFlow to put usb and 12 volt on the extra battery. That would make this product very outstanding.
Written by a customer while visiting ecoflow
Posted by: Bill 007
from Orlando Florida
Gender:Male
Verified Purchase:Yes
This battery goes well with my Delta 2. Gives me more reserve power. Great connections and works seamlessly together. Love the screen.
Written by a customer while visiting ecoflow
Posted by: Jimmy4567
from Sf bay area
Gender:Male
Verified Purchase:Yes
Easy plug & play, hard to talk about something that just works I plugged it in and never needed to do anything else, it just quietly worked. I wish more was this seamless.
Written by a customer while visiting ecoflow
Customer Rating
5
Working Well
on January 11, 2024
Posted by: NEPa
from NEPa
Gender:Male
Boosted the storage of my Delta 2 Max Pro. Worked well over 2 power outages and recharge was fairly quick.
Written by a customer while visiting ecoflow
Posted by: Fhk pismo
from Central coast california
Frequency of use:Daily
Gender:Male
Verified Purchase:Yes
I need more storage capacity for my delta 2 max generator so I purchased the smart extra battery. It works seamlessly with the generator and the ecoflow app brilliantly monitors all the inputs and outputs from my two 220 watt and three 110 watt panels
Written by a customer while visiting ecoflow
Posted by: Jefre
from Georgetown, TX
Gender:Male
Verified Purchase:Yes
The smart battery is great. Was real easy to click it into my Delta Max main battery. Not sure if it is supposed to show up on the Ecoflow app or not, which I do not see currently. But have not drained the Delta Max enough to test it fully.
Written by a customer while visiting ecoflow
Customer Rating
4
Over should be good system for Direct Vent Furnace
on December 8, 2023
Posted by: Rinnai Guy
from New Hampshire
Gender:Male
Verified Purchase:Yes
I haven't needed it as of yet, but purchased a month ago and sized for AC backup to a Rinnai direct vent wall furnace. Calculated the draw of furnace and sized the EcoFlow system for appox. continuous 4-days operation without wall power. Combo of Ecoflow Delta 2 power system and Delta 2 Max smart extra battery provides 3 kWh of power. Only downside is that you can't disconnect, remove, and recharge the extra battery on it's own. That's what I had in mind when purchased. That way I can keep running furnace with the partially charged Delta 2 alone, while I take away the extra battery to charge it back up to 100% and return and plug it back into Delta 2.
Not the case. You have to use the Delta 2 power station as the conduit to charge the extra battery. So, you'd have to remove the whole combo system to charge both the main Delta 2 and or the extra battery.
It would be a great design improvement if EcoFlow added and A/C charging input port on the Extra Battery, so it can be charged by itself.
Written by a customer while visiting ecoflow
Posted by: User5512
from WI
Gender:Male
Verified Purchase:Yes
Presently own a older Delta Max, and a Delta 2. The Delta 2 Max expansion battery is compatible with both units.
Written by a customer while visiting ecoflow