Capacity
Higher is better | Scale max: 3,994 Wh | Yeti Pro 4000 leads
Delta Pro 3,600 Wh
Yeti Pro 4000 3,993.6 Wh
Yeti Pro 4000: +394 Wh (+10.9%).
Delta Pro vs Yeti Pro 4000
VS
3,600W
Running power
3,600W
3,600 Wh
Battery
3,993.6 Wh
99.2 lbs
Weight
115.7 lbs
At a Glance
This comparison targets buyers shopping for a high-capacity LFP power station suited to home backup, off-grid projects, or extended outages. The Delta Pro and Yeti Pro 4000 share identical running power (3600W), surge capacity (7200W), and the same 47-out-of-53 device compatibility rate. Where they split is in the details.
The Yeti Pro 4000 holds a larger 3993.6 Wh battery and supports up to 3000W of solar input, nearly double the Delta Pro's 1600W max. It also edges ahead on longevity with 4000 rated cycles versus 3500. The Delta Pro counters with a notable weight advantage at 99.2 lbs compared to 115.7 lbs for the Yeti Pro 4000, a difference of roughly 14% that matters if you plan to load it into a truck bed or move it between rooms.
Both units are expandable, so neither locks you into a single-battery ceiling.
Overall Winner
Yeti Pro 4000
Powers 47 of 53 tested devices
Home backup: Tie RV / mobile: Delta Pro Solar: Yeti Pro 4000
Yeti Pro 4000 wins overall, but the best pick depends on your use case.
Choose Delta Pro if...
- + Portability matters (99 lbs vs 116)
Choose Yeti Pro 4000 if...
- + You want faster solar recharging
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: 3,600 W | Tie
Delta Pro 3,600 W
Yeti Pro 4000 3,600 W
Delta: Tie (0%).
Surge Power
Higher is better | Scale max: 7,200 W | Tie
Delta Pro 7,200 W
Yeti Pro 4000 7,200 W
Delta: Tie (0%).
Weight
Lower is better | Scale best: 99.2 lbs | Delta Pro leads
Delta Pro 99.2 lbs (45.0 kg)
Yeti Pro 4000 115.7 lbs (52.5 kg)
Delta Pro: -16.5 lbs (14.3% lighter).
Battery Life
Higher is better | Scale max: 4,000 cycles | Yeti Pro 4000 leads
Delta Pro 3,500 cycles
Yeti Pro 4000 4,000 cycles
Yeti Pro 4000: +500 cycles (+14.3%).
Compatibility Coverage
These two stations produce the same result on 53 of 53 devices.
Both can run: 47 · Neither can run: 6
Neither can run · 6 devices
These are 240V or high-voltage devices — neither station supports them.
Central AC (3-Ton)
Electric Water Heater (50 Gal)
Well Pump (1 HP)
Electric Clothes Dryer
RV Rooftop AC (13,500 BTU)
Pancake Air Compressor (6-Gallon)
Full Specs Comparison
| Spec | Delta Pro | Yeti Pro 4000 |
|---|---|---|
| Capacity | 3,600 Wh | 3,993.6 Wh ✓ |
| Running Power | 3,600 W | 3,600 W |
| Surge Power | 7,200 W | 7,200 W |
| Weight | 99.2 lbs (45.0 kg) ✓ | 115.7 lbs (52.5 kg) |
| Energy Density | 80.0 Wh/kg ✓ | 76.1 Wh/kg |
| Portability Tier | heavy | stationary |
| Chemistry | LFP | LFP |
| Cycle Life | 3,500 | 4,000 ✓ |
| Expandable | Yes | Yes |
| UPS | No | No |
| AC Voltage | 120V | 120V |
Solar Charging
Best-case charging profile using compatible solar panels.
Delta Pro
Faster Max solar input 1,600 W
Connector XT60i
Full charge time ~12.9h
Compatible panels 20/20
MPPT: 11-150V
Yeti Pro 4000
Max solar input 3,000 W
Connector Proprietary + DC7909
Full charge time ~14.3h
Compatible panels 20/20
MPPT: 13.3-145V
Charge speed comparison
Longer bar = faster charge (inverted scale)
Device Compatibility
All tested devices grouped by category. Click a category to expand.
Delta ProYeti Pro 4000
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 | Delta Pro | Runtime | Yeti Pro 4000 | Runtime |
|---|---|---|---|---|
| Box Fan (20-inch) | Safe | 30.4h | Safe | 33.7h |
| Central AC (3-Ton) | Voltage Fail | N/A | Voltage Fail | N/A |
| Dehumidifier (70 Pint) | Safe | 2.9h | Safe | 3.3h |
| Gas Furnace Fan (Blower) | Safe | 2.4h | Safe | 2.6h |
| Portable AC (12,000 BTU) | Safe | 1.9h | Safe | 2.1h |
| Space Heater (1,500W) | Safe | 1.7h | Safe | 1.9h |
| Window AC (8,000 BTU) | Safe | 3.5h | Safe | 3.9h |
Home Infrastructure(3)
1/31/3
1/3
1/3
| Device | Delta Pro | Runtime | Yeti Pro 4000 | Runtime |
|---|---|---|---|---|
| Electric Water Heater (50 Gal) | Voltage Fail | N/A | Voltage Fail | N/A |
| Garage Door Opener (Residential) | Safe | 14h | Safe | 15.5h |
| Well Pump (1 HP) | Voltage Fail | N/A | Voltage Fail | N/A |
Kitchen Appliances(11)
11/1111/11
11/11
11/11
| Device | Delta Pro | Runtime | Yeti Pro 4000 | Runtime |
|---|---|---|---|---|
| 2-Slice Bread Toaster | Safe | 1.7h | Safe | 1.9h |
| Coffee Maker | Safe | 1.6h | Safe | 1.7h |
| Digital Air Fryer | Safe | 1.5h | Safe | 1.6h |
| Electric Skillet | Safe | 1.7h | Safe | 1.9h |
| Electric Stove (Single Burner) | Safe | 1.4h | Safe | 1.6h |
| Electric Water Kettle | Safe | 1.7h | Safe | 1.9h |
| Instant Pot (6 Qt) | Safe | 1.7h | Safe | 1.9h |
| Microwave Oven (1000W) | Safe | 1.3h | Safe | 1.5h |
| Rice Cooker | Safe | 2.7h | Safe | 3h |
| Slow Cooker | Safe | 8.4h | Safe | 9.3h |
| Toaster Oven | Safe | 1.4h | Safe | 1.6h |
Large Appliances(4)
3/43/4
3/4
3/4
| Device | Delta Pro | Runtime | Yeti Pro 4000 | Runtime |
|---|---|---|---|---|
| Dishwasher | Safe | 1.4h | Safe | 1.6h |
| Electric Clothes Dryer | Voltage Fail | N/A | Voltage Fail | N/A |
| French Door Refrigerator | Safe | 12.2h | Safe | 13.5h |
| Washing Machine | Safe | 1.9h | Safe | 2.2h |
Medical(4)
4/44/4
4/4
4/4
Outdoor & RV(6)
5/65/6
5/6
5/6
Personal Care(2)
2/22/2
2/2
2/2
Power Tools(5)
4/54/5
4/5
4/5
| Device | Delta Pro | Runtime | Yeti Pro 4000 | Runtime |
|---|---|---|---|---|
| Circular Saw (Corded) | Safe | 1.4h | Safe | 1.6h |
| Corded Drill / Hammer Drill | Safe | 2.3h | Safe | 2.6h |
| Electric Chainsaw (14-inch) | Safe | 1.4h | Safe | 1.6h |
| Pancake Air Compressor (6-Gallon) | Soft Start | 1.6h | Soft Start | 1.7h |
| Shop Vac (Wet/Dry, 5-6 HP Peak) | Safe | 1.8h | Safe | 2h |
As an Amazon Associate, we earn from qualifying purchases. Our methodology
The Bottom Line
The Delta Pro is the better pick for buyers who prioritize portability and want a capable 3600W station they can relocate without a struggle. The Yeti Pro 4000 earns the edge for those building larger solar arrays or needing maximum cycle life, thanks to its 3000W solar input and 4000-cycle rating. Overall, the Yeti Pro 4000 takes the win on capacity and solar flexibility, making it the stronger long-term investment for stationary home backup and solar-heavy setups.
Delta Pro vs Yeti Pro 4000 FAQ
Q Which is better for home backup, Delta Pro or Yeti Pro 4000?
Yeti Pro 4000 is the stronger overall choice in this matchup based on weighted compatibility across 53 tested devices.
Q Which has longer runtime, Delta Pro or Yeti Pro 4000?
Yeti Pro 4000 has higher battery capacity (3,993.6 Wh), which generally supports longer runtime on the same load.
Q Which charges faster with solar panels?
Delta Pro has the faster best-case solar recharge profile in our panel compatibility test set.
Q Which is more portable, Delta Pro or Yeti Pro 4000?
Delta Pro is lighter at 99.2 lbs vs 115.7 lbs. Delta Pro is rated heavy for portability.
Q How many devices can each power station run?
Both power stations can run 47 of 53 tested devices.