Capacity
Higher is better | Scale max: 6,144 Wh | Delta Pro Ultra leads
Anker SOLIX F3800 3,840 Wh
Delta Pro Ultra 6,144 Wh
Delta Pro Ultra: +2,304 Wh (+60.0%).
Anker SOLIX F3800 vs Delta Pro Ultra
VS
6,000W
Running power
6,000W
3,840 Wh
Battery
6,144 Wh
132.3 lbs
Weight
182.1 lbs
At a Glance
This comparison targets buyers shopping for a whole-home backup station with serious solar capability. Both the Anker SOLIX F3800 and the EcoFlow Delta Pro Ultra deliver 6,000W of running power, and each one powered 52 out of 53 devices in our compatibility tests. The key splits are capacity, surge headroom, and solar throughput.
The Delta Pro Ultra packs 6,144 Wh versus 3,840 Wh for the F3800, a 60% larger battery that translates directly into longer backup runtime. Its 12,000W surge rating also tops the F3800's 9,000W, giving it more margin for motor-driven appliances like well pumps and central AC compressors. Solar input tells a similar story: the Delta Pro Ultra accepts up to 5,600W and can recharge in roughly 8 hours, while the F3800 maxes out at 2,400W with a 13.7-hour charge window.
The tradeoff is weight. At 132.3 lbs, the F3800 is nearly 50 lbs lighter, making it considerably easier to reposition around a property or load into a vehicle.
Overall Winner
Delta Pro Ultra
Powers 52 of 53 tested devices
Home backup: Delta Pro Ultra RV / mobile: Tie Solar: Delta Pro Ultra
Choose Anker SOLIX F3800 if...
- + Portability matters (132 lbs vs 182)
Choose Delta Pro Ultra if...
- + You want faster solar recharging
- + You need all-day runtime headroom
Spec Snapshot
Absolute values shown. Bars are scaled within this comparison for readability.
Each metric is independent. Bar lengths are not comparable across different compare pages.
Running Power
Higher is better | Scale max: 6,000 W | Tie
Anker SOLIX F3800 6,000 W
Delta Pro Ultra 6,000 W
Delta: Tie (0%).
Surge Power
Higher is better | Scale max: 12,000 W | Delta Pro Ultra leads
Anker SOLIX F3800 9,000 W
Delta Pro Ultra 12,000 W
Delta Pro Ultra: +3,000 W (+33.3%).
Weight
Lower is better | Scale best: 132.3 lbs | Anker SOLIX F3800 leads
Anker SOLIX F3800 132.3 lbs (60.0 kg)
Delta Pro Ultra 182.1 lbs (82.6 kg)
Anker SOLIX F3800: -49.8 lbs (27.4% lighter).
Battery Life
Higher is better | Scale max: 3,200 cycles | Delta Pro Ultra leads
Anker SOLIX F3800 3,000 cycles
Delta Pro Ultra 3,200 cycles
Delta Pro Ultra: +200 cycles (+6.7%).
Compatibility Coverage
These two stations produce the same result on 53 of 53 devices.
Both can run: 52 · Neither can run: 1
Neither can run · 1 devices
These devices have startup surges that exceed both stations.
Central AC (3-Ton)
Full Specs Comparison
| Spec | Anker SOLIX F3800 | Delta Pro Ultra |
|---|---|---|
| Capacity | 3,840 Wh | 6,144 Wh ✓ |
| Running Power | 6,000 W | 6,000 W |
| Surge Power | 9,000 W | 12,000 W ✓ |
| Weight | 132.3 lbs (60.0 kg) ✓ | 182.1 lbs (82.6 kg) |
| Energy Density | 64.0 Wh/kg | 74.4 Wh/kg ✓ |
| Portability Tier | stationary | stationary |
| Chemistry | LFP | LFP |
| Cycle Life | 3,000 | 3,200 ✓ |
| Expandable | Yes | Yes |
| UPS | No | No |
| AC Voltage | 120V/240V | 120V/240V |
Solar Charging
Best-case charging profile using compatible solar panels.
Anker SOLIX F3800
Max solar input 2,400 W
Connector XT60
Full charge time ~13.7h
Compatible panels 19/20
MPPT: 11-60V
Delta Pro Ultra
Faster Max solar input 5,600 W
Connector MC4
Full charge time ~8.0h
Compatible panels 20/20
MPPT: 80-450V
Charge speed comparison
Longer bar = faster charge (inverted scale)
Device Compatibility
All tested devices grouped by category. Click a category to expand.
Anker SOLIX F3800Delta Pro Ultra
Emergency(2)
2/22/2
2/2
2/2
Entertainment(2)
2/22/2
2/2
2/2
EV & Transportation(2)
2/22/2
2/2
2/2
Heating & Cooling(7)
6/76/7
6/7
6/7
| Device | Anker SOLIX F3800 | Runtime | Delta Pro Ultra | Runtime |
|---|---|---|---|---|
| Box Fan (20-inch) | Safe | 32.4h | Safe | 51.8h |
| Central AC (3-Ton) | Fail | N/A | Fail | N/A |
| Dehumidifier (70 Pint) | Safe | 3.1h | Safe | 5h |
| Gas Furnace Fan (Blower) | Safe | 2.5h | Safe | 4.1h |
| Portable AC (12,000 BTU) | Safe | 2h | Safe | 3.2h |
| Space Heater (1,500W) | Safe | 1.8h | Safe | 2.9h |
| Window AC (8,000 BTU) | Safe | 3.8h | Safe | 6.1h |
Home Infrastructure(3)
3/33/3
3/3
3/3
Kitchen Appliances(11)
11/1111/11
11/11
11/11
| Device | Anker SOLIX F3800 | Runtime | Delta Pro Ultra | Runtime |
|---|---|---|---|---|
| 2-Slice Bread Toaster | Safe | 1.8h | Safe | 2.9h |
| Coffee Maker | Safe | 1.7h | Safe | 2.7h |
| Digital Air Fryer | Safe | 1.6h | Safe | 2.5h |
| Electric Skillet | Safe | 1.8h | Safe | 2.9h |
| Electric Stove (Single Burner) | Safe | 1.5h | Safe | 2.4h |
| Electric Water Kettle | Safe | 1.8h | Safe | 2.9h |
| Instant Pot (6 Qt) | Safe | 1.8h | Safe | 2.9h |
| Microwave Oven (1000W) | Safe | 1.4h | Safe | 2.2h |
| Rice Cooker | Safe | 2.9h | Safe | 4.6h |
| Slow Cooker | Safe | 9h | Safe | 14.3h |
| Toaster Oven | Safe | 1.5h | Safe | 2.4h |
Large Appliances(4)
4/44/4
4/4
4/4
Medical(4)
4/44/4
4/4
4/4
Outdoor & RV(6)
6/66/6
6/6
6/6
Personal Care(2)
2/22/2
2/2
2/2
Power Tools(5)
5/55/5
5/5
5/5
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The Bottom Line
Choose the Anker SOLIX F3800 if portability matters and your power needs fit comfortably within its 3,840 Wh capacity. The Delta Pro Ultra is the better fit for buyers who need extended runtime, faster solar recovery, and higher surge tolerance for heavy loads. With a score of 102 to 100 and advantages in capacity, surge power, and solar speed, the Delta Pro Ultra edges ahead as our pick in this matchup.
Anker SOLIX F3800 vs Delta Pro Ultra FAQ
Q Which is better for home backup, Anker SOLIX F3800 or Delta Pro Ultra?
Delta Pro Ultra is the stronger overall choice in this matchup based on weighted compatibility across 53 tested devices.
Q Which has longer runtime, Anker SOLIX F3800 or Delta Pro Ultra?
Delta Pro Ultra has higher battery capacity (6,144 Wh), which generally supports longer runtime on the same load.
Q Which charges faster with solar panels?
Delta Pro Ultra has the faster best-case solar recharge profile in our panel compatibility test set.
Q Which is more portable, Anker SOLIX F3800 or Delta Pro Ultra?
Anker SOLIX F3800 is lighter at 132.3 lbs vs 182.1 lbs. Anker SOLIX F3800 is rated stationary for portability.
Q How many devices can each power station run?
Both power stations can run 52 of 53 tested devices.