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.
The DELTA Pro 3 can use both the DELTA Pro extra battery and the DELTA Pro 3 extra battery, though in practice mixing two different battery sizes
causes sequential draining and filling of the different battery types.
With the introduction of the DELTA 3 and DELTA 3 Plus, EcoFlow also added the ability to add
the mighty DELTA Pro 3 Extra Battery for a whopping total 5 kilowatt hours of capacity with the solar generator and extra battery.
RIVER Series
Acronym
RP EB
R3+ EB300
R3+ EB600
Connector
Dsub 7w2
TBD
TBD0
RIVER Pro
RP
thumb_up
thumb_down
thumb_down
RIVER 2
R2
thumb_down
thumb_down
thumb_down
RIVER 2 Max
R2M
thumb_down
thumb_down
thumb_down
RIVER 2 Pro
R2P
thumb_down
thumb_down
thumb_down
RIVER 3 New
R3
thumb_down
thumb_down
thumb_down
RIVER 3 Plus New
R3+
thumb_down
thumb_up1
thumb_up2
1 RIVER 3 Max = RIVER 3 Plus + EB 300 2 RIVER 3 Max Plus = RIVER 3 Plus + EB 600
DELTA Series
Acronym
D2 EB
D3 EB New
DM EB
D2M EB
DP EB
DP3 EB New
PK 2kwh
PK 5kwh
W1 EB
W2 EB
BLADE EB
800w Alternator Charger
Connector
XT-150
XT-150
XT-150
XT-150
4+8
4+8
4+8
4+8
XT-150
XT-150
XT-150
XT-150
Chemistry
LFP
LFP
NMC
LFP
LFP
LFP
LFP
NMC
NMC
LFP
-
DELTA Mini
thumb_down
thumb_down
thumb_down
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
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
thumb_down
thumb_down
thumb_down
DELTA Max (1600)
DM
thumb_down
thumb_down
thumb_up
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
question_mark
thumb_down
thumb_up
DELTA Max (2000)
DM
thumb_down
thumb_down
thumb_up
thumb_up
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
question_mark
thumb_down
thumb_up
DELTA 2
D2
thumb_up
thumb_up
thumb_up
thumb_up
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_up
thumb_up
thumb_up
DELTA 3/3 Plus New
D3/D3+
thumb_up
thumb_up
thumb_down
thumb_up
thumb_down
thumb_up
thumb_down
thumb_down
thumb_down
thumb_up
thumb_down
thumb_up
DELTA 2 Max
D2M
thumb_down
thumb_down
thumb_up
thumb_up
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_up
thumb_down
thumb_up
DELTA Pro
DP
thumb_down
thumb_down
thumb_down
thumb_down
thumb_up
thumb_down
thumb_down
thumb_down
thumb_down
thumb_up+%
thumb_down
thumb_up+
DELTA Pro 3 New
DP3
thumb_down
thumb_down
thumb_down
thumb_down
thumb_up
thumb_up
thumb_down
thumb_down
thumb_down
question_mark
thumb_down
thumb_up+
Power Kits
PK
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_up
thumb_up
thumb_down
thumb_down
thumb_down
thumb_down
Power Kits 5kVA New
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_down
thumb_up
thumb_up
thumb_down
thumb_down
thumb_down
thumb_down
Power Kits PowerDock New
thumb_up
thumb_up
thumb_down
thumb_up
thumb_up
thumb_up
thumb_up
thumb_up
thumb_down
thumb_down
thumb_down
thumb_down
WAVE
W1
thumb_up
thumb_up
thumb_up
thumb_up
thumb_up+
question_mark
question_mark
question_mark
thumb_up
thumb_down
thumb_down
thumb_down
WAVE 2
W2
thumb_up
thumb_up
thumb_up
thumb_up
thumb_up+
question_mark
question_mark
question_mark
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_down
thumb_down
thumb_up
thumb_down
Smart Generator
SG
thumb_up
thumb_up
thumb_up
thumb_up
thumb_up+
question_mark
question_mark
question_mark
thumb_down
question_mark
thumb_down
-
800w Alternator Charger
800wAC
thumb_up
thumb_up
thumb_up
thumb_up
thumb_up+
question_mark
question_mark
question_mark
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.