DELTA Pro 3
Expandable to 48kWh | 4000W
RM 15,999
DELTA Pro Ultra vs DELTA 3 Max Plus
Two models, side by side. Every figure here comes off the current specification sheet — pick the pair you are actually deciding between.
More capacity
EcoFlow DELTA Pro Ultra
RM 30,999
You want the whole house, air-conditioning included.
You will add cabinets over time — it stacks to 30kWh.
Installation by an electrician is acceptable to you.
Lighter, cheaper
EcoFlow DELTA 3 Max Plus
RM 7,699
You are covering the essentials for a few hours.
It has to be carried. 22.1kg against 51.5kg is one person, not two.
Half the capacity is enough and the price matters more.
Why EcoFlow DELTA Pro Ultra
3×capacity6144Wh against 2048Wh
3×expandable to30kWh against 10kWh
2.3×ac output6900W against 3000W
Why EcoFlow DELTA 3 Max Plus
2×switchover10ms against <20ms
+34%price per whRM 3.76 against RM 5.05
Specification
EcoFlow DELTA Pro Ultra
EcoFlow DELTA 3 Max Plus
Energy and cells
Capacity
6144Wh
3×2048Wh
Expandable to
30kWh
3×10kWh
Cell chemistry
LFP
LFP
Cycles to 80%
4000
4000
Expansion
Extra batteries it takes
DELTA Pro Ultra Battery (6144Wh)
DELTA 3 Max Plus or DELTA Pro 3 Smart Extra Battery
Extra battery port
Cabinet stacking connector
4+8 pin, via Smart Extra Battery Expansion Adapter
How many, and the ceiling
Up to 5 per inverter, 30kWh
Up to 2-10kWh
Power delivery
AC output
6900W
2.3×3000W
Surge
—
6000W
X-Boost ceiling
—
3900W
Switchover
<20ms
10ms
2×Charging
Solar input
—
1000W
AC charge input
—
1800W
Car or alternator charging
—
1000W alternator
Wall charge time
—
0–80% in 68 min
Size and handling
Weight
41.7 kg
22.1 kg
Dimensions (W × D × H)
690 × 481 × 214 mm
494 × 242 × 305 mm
Volume
71.0 L
36.5 L
Footprint
3319 cm²
1195 cm²
Energy density
147 Wh/kg
93 Wh/kg
Wheels
Yes, and a trolley frame
Optional, detachable
Ports, one by one
Output ports, total
—
10
AC outlets
—
4 × Type G, 3000W total
USB-A ports
—
1 × 18W
USB-C ports
—
1 × 140W, 2 × 45W
Fastest USB-C
—
140W
12V DC and car ports
—
378W: car 12.6V/10A + Anderson 12.6V/30A
Living with it
Noise
X-Quiet inverter
25 dB
Ingress rating
IP54
—
Ownership in Malaysia
Warranty
2 yr unit, 5 yr cells
2 yr unit, 5 yr cells
Grid specification
240V / 50Hz, Type G
240V / 50Hz, Type G
App and connectivity
Wi-Fi + Bluetooth
Wi-Fi + Bluetooth
Serviced at
Iskandar Puteri, Johor
Iskandar Puteri, Johor
Price per Wh
RM 5.05
RM 3.76
+34%Bars are scaled to the larger of the two figures, so a longer bar means a bigger number — on weight and switchover, smaller is better. A dash means the figure is not published for that model. Cycle counts are the manufacturer’s figure to 80% capacity. Port counts and per-port wattages are the 230–240V variant figures; check the plate on the unit before wiring anything permanent. Both units ship in Malaysian specification: 240V / 50Hz, Type G.
Which should you buy?
DELTA Pro Ultra carries more and costs more. DELTA 3 Max Plus is the answer when the budget is the constraint.
EcoFlow DELTA Pro Ultra
Buy the DELTA Pro Ultra if the load list keeps growing — headroom is cheaper bought once than twice.
See the ModelEcoFlow DELTA 3 Max Plus
Buy the DELTA 3 Max Plus if the budget is the constraint and the essentials are the job.
See the ModelStill unsure
Work backwards from the load instead. Tick the appliances and the hours, and we name the smallest unit that clears both.
Size It From the LoadComparisons people make most
One tap loads the pair above. The price gap is the difference between the two as they sit today.
VSDELTA Pro 3 vs DELTA Pro UltraWhole-home backup: where stacking starts to payRM 15,000 apartVSDELTA Pro 3 vs DELTA 3 Max PlusThe most common upgrade decision in MalaysiaRM 8,300 apartVS
DELTA 3 Max Plus vs DELTA 3 PlusWeekend unit or the fridge through an outageRM 3,300 apartVS
DELTA 3 Max Plus vs DELTA 2 MaxNew generation against the value pickRM 1,000 apartVS
DELTA 3 Plus vs RIVER 3 PlusCarry it up a hill, or run 240V properlyRM 2,600 apartVSDELTA Pro Ultra vs DELTA 3 Max PlusThe two ends of the range, side by sideRM 23,300 apartRanked, not curated
The same six models sorted four ways. Nothing is weighted, promoted or sponsored — it is the specification sheet in order.
Most capacity
Wh held
Most output
Watts continuous
Easiest to carry
Kilograms
Best value
Ringgit per Wh
Reading a spec sheet honestly
Four questions that settle most comparisons faster than the numbers do.
Capacity or output — which matters more?
Output decides whether the appliance runs at all; capacity decides how long. A 1.5HP air-conditioner needs the watts first, so check AC output against your biggest load before you look at Wh.
Does expandability replace buying bigger?
Often, yes. An expandable unit lets you buy the inverter once and the batteries later, which is why DELTA Pro 3 outsells units of similar capacity that cannot grow.
Why does switchover time appear at all?
Because a router, a NAS or a CPAP notices a 30-second gap and a 20-millisecond one differently. If the unit is for backup rather than camping, this row is the one to read.
Are the dashes hiding bad numbers?
No — they are figures EcoFlow does not publish for that model in this market. We would rather leave the cell empty than fill it with an estimate you might buy on.
The Whole Range at a Glance
| Model | Capacity | Expandable | Output | Stock | Price |
|---|---|---|---|---|---|
| DELTA Pro Ultra | 6144Wh | 30kWh | 6900W | — | RM 30,999 |
| DELTA Pro 3 | 4096Wh | 12kWh | 4000W | 51.5 kg | RM 15,999 |
| DELTA 3 Max Plus | 2048Wh | 10kWh | 3000W | 22.1 kg | RM 7,699 |
| DELTA 3 Plus | 1024Wh | 5kWh | 1500W | 12.5 kg | RM 4,399 |
| DELTA 2 Max | 2048Wh | 6kWh | 2400W | 19 kg | RM 6,699 |
| RIVER 3 Plus | 286Wh | 840Wh | 600W | 4.7 kg | RM 1,799 |