EcoFlow DELTA Pro 3
4096 Wh, 4000 W
Growatt HELIOS 3600
Power station · HELIOS. Specs from the manufacturer page (checked ).
The Growatt HELIOS 3600 is a 3686 Wh portable power station with 3600 W continuous output. It uses an LFP (LiFePO4) battery rated for 4000+ cycles and can be expanded to up to 36 kWh. Two units in parallel support 240V whole-home power.
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Capacity
3686Wh
Continuous
3600W
Peak / surge
4500W
Chemistry
LFP
Cycles
4000
Expandable
Yes
Warranty
5yr
Key features
- 16 outlets and ports
- AC charging: 1.5 hours to 100% (240V) or 3 hours to full (110V)
- Solar charging: 2.5 hours to full with 2000W DC input
- NEMA TT-30 AC outlet (30A) and Anderson output port
- Anderson input port for charging from a vehicle alternator
- Two units paired with the Growatt Split-phase Connector give 7200W continuous output; output boostable to 4500W with Watt+
- EPS emergency backup with AC/DC auto-turn-on; switchover time is printed as 15 ms in the highlights and 20 ms in the EPS section
- Cold startup down to -22°F (-30°C); control via the MyGro app
What it is for
- Home backup power
- RV and outdoor use
- Off-grid living
- Professional tools
Specifications
| Capacity | 3686 Wh |
|---|---|
| Continuous output | 3600 W |
| Peak / surge | 4500 W |
| Expandable | Yes |
| Battery chemistry | LFP |
| Cycle life | 4000 cycles |
| AC charging | 1.5Hrs to 100% (240V) or 3Hrs to full (110V) |
| AC output voltage | 240V when two units are paired (single-unit output voltage not stated) |
| Warranty | 5 years |
From the Growatt page. Values the manufacturer does not publish are left out.
How long it runs common appliances
| Appliance | Watts | Runs? | Hours |
|---|---|---|---|
| Refrigerator (with freezer) | 120 W (600 start) | yes | 70 h |
| Chest freezer | 100 W (500 start) | yes | 4.1 days |
| CPAP (no humidifier) | 35 W (40 start) | yes | 3.5 days |
| Gas boiler (pump + controls) | 120 W (300 start) | yes | 49 h |
| Wi-Fi router + modem/ONU | 12 W | yes | 10.1 days |
| Starlink (standard dish) | 60 W (100 start) | yes | 49 h |
| TV 50" | 75 W | yes | 39 h |
| Sump pump 1/2 HP | 920 W (2150 start) | yes | 3.2 h |
| Well pump 1/2 HP | 880 W (2000 start) | yes | 3.3 h |
| Space heater 1500 W | 1500 W | yes | 2.8 h |
Assumes 88 % inverter efficiency, 90 % usable capacity and typical duty cycles. Build your own list in the calculator.
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Growatt HELIOS 3600 comparisons
- HELIOS 3600 vs EcoFlow DELTA Pro 3
- HELIOS 3600 vs Bluetti Apex 300
- HELIOS 3600 vs Bluetti Elite 300
- HELIOS 3600 vs EcoFlow DELTA 3 Ultra
- HELIOS 3600 vs Allpowers R4000
Connection and wiring
Follow the diagrams in the Growatt manual.
Open the Growatt manual (PDF) →
Error codes and troubleshooting
| Code | Meaning | What to do | Manual page |
|---|---|---|---|
| High Temperature Warning | The temperature of the HELIOS 3600 is too high. | Place the product in an open area for cooling. If you charge the unit immediately after it is fully discharged, this warning may appear. Wait 2-3 hours before charging. | 9 |
| Low Temperature Warning | The current battery temperature is low, which reduces charging efficiency. | Keep using the product. Charging efficiency returns to normal as the temperature rises. | 9 |
| Overload Warning | The HELIOS 3600 is overloaded. Output ports are drawing more power than the rated limit for that port or the total output. | Unplug the AC load(s) that caused the overload. Unplugging the load clears the alarm and restores normal output. For 120V AC, total output across all ports is up to 3600W. For 240V AC, it is up to 2200W. For DC and USB, each single port has its own rated limit. | 9 |
| A01 | The cooling fan is blocked. | Check whether the fan is blocked. If so, turn off the machine, remove the blockage, then restart the product. If the problem persists, contact Growatt Customer Service. Call service if it persists. | 23 |
| A02 | The inverter has overheated. | Turn off the product and place it in an open area for 2-3 hours. After cooling, the product will continue to work normally. | 23 |
| A03 | The AC output load exceeds the allowed limit. | Unplug part or all of the loads and keep the total output within 3600W to resume normal operation. Long-term overload may cause product damage. | 23 |
6 of 25 codes. From the Growatt manual. All 25 INFINITY 2000 PRO / HELIOS 3600 codes →
FAQ
How long will the Growatt HELIOS 3600 run a refrigerator?
About 70 hours for a typical 120 W refrigerator that runs 35 % of the time, after inverter and depth-of-discharge losses.
Can the Growatt HELIOS 3600 start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 4500 W peak. That covers a typical 1/2 HP sump pump (about 2150 W to start). Use the calculator with your exact pump.