Extra battery compatibility is a complex topic despite the fact that many extra batteries and solar generators share the same XT-150 connector.
For the most part, extra batteries only work with their main unit:
River Pro Extra Battery to River Pro solar generator
WAVE Add-on Battery to WAVE air conditioner
WAVE 2 Add-on Battery to WAVE heat pump
Delta Pro Extra Battery to Delta Pro solar generator
Power Kits Batteries to Power Kits Hub
When the Delta 2 and the Delta 2 Max were released, EcoFlow did something interesting with the extra battery situation, allowing some mixing and
matching of extra batteries and solar generators.
River Pro EB
Delta 2 EB
Delta Max EB
Delta Max 2 EB
Delta Pro EB
WAVE EB
WAVE 2 EB
BLADE EB
800w Alternator Charger
Connector
Dsub 7w2
XT-150
XT-150
XT-150
4+8
XT-150
XT-150
XT-150
XT=150
Chemistry
NMC
LFP
NMC
LFP
LFP
NMC
NMC
LFP
-
River Pro
thumb_up
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
River 2
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
River 2 Max
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
River 2 Pro
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
Delta Mini
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
Delta (1000)
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
Delta (1300)
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
Delta Max (1600)
thumb_down
thumb_down
thumb_up
thumb_down
thumb_down
thumb_down
question_mark
thumb_down
thumb_up
Delta Max (2000)
thumb_down
thumb_down
thumb_up
thumb_up
thumb_down
thumb_down
question_mark
thumb_down
thumb_up
Delta 2
thumb_down
thumb_up
thumb_up
thumb_up
thumb_down
thumb_down
thumb_up
thumb_up
thumb_up
Delta 2 Max
thumb_down
thumb_down
thumb_up
thumb_up
thumb_down
thumb_down
thumb_up
thumb_down
thumb_up
Delta Pro
thumb_down
thumb_down
thumb_down
thumb_down
thumb_up
thumb_down
thumb_up+%
thumb_down
thumb_up+
Power Kits
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
WAVE
thumb_down
thumb_up
thumb_up
thumb_up
thumb_up+
thumb_up
thumb_down
thumb_down
thumb_down
WAVE 2
thumb_down
thumb_up
thumb_up
thumb_up
thumb_up+
thumb_down
thumb_up
thumb_down
thumb_down#
BLADE
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_up
Smart Generator
thumb_down
thumb_up
thumb_up
thumb_up
thumb_up+
question_mark
question_mark
question_mark
thumb_down
800w Alternator Charger
thumb_down
thumb_up
thumb_up
thumb_up
thumb_up+
thumb_down
thumb_up#
thumb_down
-
+ Requires an XT-150 to 4+8 adapter (a.k.a EcoFlow Delta Pro to Smart Generator Adapter) % Disables AC output while WAVE 2 battery is plugged in # Can charge the WAVE 2 battery but cannot power the WAVE 2
BLADE EB - an Interesting Surprise
There is this little surprise of an extra battery, the BLADE extra battery, which looks like a Delta 2 that has no display,
no USB ports and is weather resistant. There isn't much information about this other than a product page and a
tutorial video (Youtube).
It has an XT-150 port and a special PV input port (this might be the same port that is used on PowerStream - only folks on the other side of the
puddle can get this) with adapters that allow you to power a BLADE base as well as charge it with the BLADE
power supply. According to the video can also act as an extra battery to a Delta 2 or use a Delta 2 as an extra battery.
Can a solar generator become an extra battery to another solar generator?
One question that is often asked is whether you can plug two Delta Pros together or a Delta 2 to a Delta Max with extra battery cables
to get one to work as an extra battery to the other. The answer is a definitive
NO!!!
Only extra batteries, Smart Generators, or WAVEs can be connected to the extra battery ports. You cannot plug a solar generator into the extra battery port of another solar generator.
Note, there are ways to get two Delta Pros to work
together, but that is using a Double Voltage Hub with a Victron AutoTransformer or a Smart Home Panel in 120v mode... a discussion for a future article.
Bottom Line
Most extra batteries only work with the same-named solar generator or smart device, but there are just a few exceptions.
Then there is this little surprise of an extra battery, the BLADE Smart Extra Battery, which looks like a Delta 2 that has no display,
no USB ports and is weather resistant.
