Capacity
Higher is better | Scale max: 1,260 Wh | DELTA (Gen 1) leads
AC70 768 Wh
DELTA (Gen 1) 1,260 Wh
DELTA (Gen 1): +492 Wh (+64.1%).
AC70 vs DELTA (Gen 1)
1,000W
Running power
1,800W
768 Wh
Battery
1,260 Wh
22.5 lbs
Weight
30.9 lbs
At a Glance
This comparison targets buyers choosing between a compact LFP unit and a higher-output NMC station for powering everyday devices, tailoring, and light home backup. The DELTA (Gen 1) delivers 1800W of running power and 1260 Wh of capacity, nearly double the AC70's 1000W and 768 Wh. That gap shows up clearly in device coverage: the DELTA passed 40 out of 53 tested devices compared to 24 for the AC70.
Every device the Bluetti handled, the EcoFlow handled too, plus 16 more. The AC70 fights back on longevity and portability. Its LFP battery is rated for 3,000 cycles versus 800 for the DELTA's NMC cells, and it weighs just 22.5 lbs, roughly 8 lbs lighter.
Solar recharge is also faster on the AC70, topping off in about 2.7 hours at up to 500W input versus 4.5 hours for the DELTA at 400W.
Overall Winner
DELTA (Gen 1)
Powers 40 of 53 tested devices vs 24 for AC70
Home backup: DELTA (Gen 1) RV / mobile: Tie Solar: AC70
DELTA (Gen 1) wins overall, but the best pick depends on your use case.
Choose AC70 if...
- + Portability matters (23 lbs vs 31)
- + You value battery longevity (LFP, 3,000 cycles)
- + You want faster solar recharging
Choose DELTA (Gen 1) if...
- + You want broader device compatibility
- + 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: 1,800 W | DELTA (Gen 1) leads
AC70 1,000 W
DELTA (Gen 1) 1,800 W
DELTA (Gen 1): +800 W (+80.0%).
Surge Power
Higher is better | Scale max: 3,300 W | DELTA (Gen 1) leads
AC70 2,000 W
DELTA (Gen 1) 3,300 W
DELTA (Gen 1): +1,300 W (+65.0%).
Weight
Lower is better | Scale best: 22.5 lbs | AC70 leads
AC70 22.5 lbs (10.2 kg)
DELTA (Gen 1) 30.9 lbs (14.0 kg)
AC70: -8.4 lbs (27.1% lighter).
Battery Life
Higher is better | Scale max: 3,000 cycles | AC70 leads
AC70 3,000 cycles
DELTA (Gen 1) 800 cycles
AC70: +2,200 cycles (+275.0%).
Where Compatibility Actually Differs
Out of 53 devices tested, 16 show a different result between these two stations.
Both can run: 24 · Differences: 30% (16/53) · Neither can run: 13
Only DELTA (Gen 1) can run 16
2-Slice Bread Toaster AC70: Running shortfall
Coffee Maker AC70: Running shortfall
Digital Air Fryer AC70: Running shortfall
Electric Skillet AC70: Running shortfall
Electric Stove (Single Burner) AC70: Running shortfall
Electric Water Kettle AC70: Running shortfall
Instant Pot (6 Qt) AC70: Running shortfall
Toaster Oven AC70: Running shortfall
Gas Furnace Fan (Blower) AC70: Running + surge shortfall
Space Heater (1,500W) AC70: Running shortfall
Window AC (8,000 BTU) AC70: Needs soft-start
Dishwasher AC70: Running shortfall
Washing Machine AC70: Running shortfall
EV Charger (Level 1, 120V) AC70: Running shortfall
Professional Hair Dryer AC70: Running shortfall
Corded Drill / Hammer Drill AC70: Running + surge shortfall
Neither can run · 13 devices
These devices exceed both stations on running power and surge.
Microwave Oven (1000W)
Central AC (3-Ton)
Portable AC (12,000 BTU)
Dehumidifier (70 Pint)
Electric Clothes Dryer
Circular Saw (Corded)
Electric Chainsaw (14-inch)
Pancake Air Compressor (6-Gallon)
Shop Vac (Wet/Dry, 5-6 HP Peak)
Sump Pump (1/2 HP)
Electric Water Heater (50 Gal)
Well Pump (1 HP)
RV Rooftop AC (13,500 BTU)
Full Specs Comparison
| Spec | AC70 | DELTA (Gen 1) |
|---|---|---|
| Capacity | 768 Wh | 1,260 Wh ✓ |
| Running Power | 1,000 W | 1,800 W ✓ |
| Surge Power | 2,000 W | 3,300 W ✓ |
| Weight | 22.5 lbs (10.2 kg) ✓ | 30.9 lbs (14.0 kg) |
| Energy Density | 75.3 Wh/kg | 90.0 Wh/kg ✓ |
| Portability Tier | portable | portable |
| Chemistry | LFP | NMC |
| Cycle Life | 3,000 ✓ | 800 |
| Expandable | No | No |
| UPS | No | No |
| AC Voltage | 120V | 120V |
Solar Charging
Best-case charging profile using compatible solar panels.
AC70
Faster Max solar input 500 W
Connector XT60
Full charge time ~2.7h
Compatible panels 19/20
MPPT: 12-58V
DELTA (Gen 1)
Max solar input 400 W
Connector XT60
Full charge time ~4.5h
Compatible panels 19/20
MPPT: 10-65V
Charge speed comparison
Longer bar = faster charge (inverted scale)
Device Compatibility
All tested devices grouped by category. Click a category to expand.
AC70DELTA (Gen 1)
Emergency(2)
1/21/2
1/2
1/2
| Device | AC70 | Runtime | DELTA (Gen 1) | Runtime |
|---|---|---|---|---|
| Full-Size Freezer (15-17 Cu. Ft.) | Safe | 3.4h | Safe | 5.5h |
| Sump Pump (1/2 HP) | Fail | N/A | Soft Start | 0.8h |
Entertainment(2)
2/22/2
2/2
2/2
EV & Transportation(2)
1/22/2
1/2
2/2
Heating & Cooling(7)
1/74/7
1/7
4/7
| Device | AC70 | Runtime | DELTA (Gen 1) | Runtime |
|---|---|---|---|---|
| Box Fan (20-inch) | Safe | 6.5h | Safe | 10.6h |
| Central AC (3-Ton) | Voltage Fail | N/A | Voltage Fail | N/A |
| Dehumidifier (70 Pint) | Fail | N/A | Soft Start | 1h |
| Gas Furnace Fan (Blower) | Fail | N/A | Safe | 0.8h |
| Portable AC (12,000 BTU) | Fail | N/A | Soft Start | 0.6h |
| Space Heater (1,500W) | Fail | N/A | Safe | 0.6h |
| Window AC (8,000 BTU) | Soft Start | 0.8h | Safe | 1.2h |
Home Infrastructure(3)
1/31/3
1/3
1/3
| Device | AC70 | Runtime | DELTA (Gen 1) | Runtime |
|---|---|---|---|---|
| Electric Water Heater (50 Gal) | Voltage Fail | N/A | Voltage Fail | N/A |
| Garage Door Opener (Residential) | Safe | 3h | Safe | 4.9h |
| Well Pump (1 HP) | Voltage Fail | N/A | Voltage Fail | N/A |
Kitchen Appliances(11)
2/1110/11
2/11
10/11
| Device | AC70 | Runtime | DELTA (Gen 1) | Runtime |
|---|---|---|---|---|
| 2-Slice Bread Toaster | Fail | N/A | Safe | 0.6h |
| Coffee Maker | Fail | N/A | Safe | 0.6h |
| Digital Air Fryer | Fail | N/A | Tight | 0.5h |
| Electric Skillet | Fail | N/A | Safe | 0.6h |
| Electric Stove (Single Burner) | Fail | N/A | Tight | 0.5h |
| Electric Water Kettle | Fail | N/A | Safe | 0.6h |
| Instant Pot (6 Qt) | Fail | N/A | Safe | 0.6h |
| Microwave Oven (1000W) | Fail | N/A | Fail | N/A |
| Rice Cooker | Tight | 0.6h | Safe | 0.9h |
| Slow Cooker | Safe | 1.8h | Safe | 2.9h |
| Toaster Oven | Fail | N/A | Tight | 0.5h |
Large Appliances(4)
1/43/4
1/4
3/4
| Device | AC70 | Runtime | DELTA (Gen 1) | Runtime |
|---|---|---|---|---|
| Dishwasher | Fail | N/A | Tight | 0.5h |
| Electric Clothes Dryer | Voltage Fail | N/A | Voltage Fail | N/A |
| French Door Refrigerator | Safe | 2.6h | Safe | 4.3h |
| Washing Machine | Fail | N/A | Safe | 0.7h |
Medical(4)
4/44/4
4/4
4/4
Outdoor & RV(6)
5/65/6
5/6
5/6
Personal Care(2)
1/22/2
1/2
2/2
Power Tools(5)
0/51/5
0/5
1/5
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The Bottom Line
Pick the AC70 if you need a lighter, longer-lasting station for small loads and frequent solar charging. Choose the DELTA (Gen 1) if you need to run higher-draw appliances or want broader device compatibility out of the box.
With a compatibility score of 75.5 versus 46.5, the DELTA (Gen 1) is the stronger overall pick for buyers who prioritize powering more gear in more situations. In our 53-device benchmark, AC70 powers 24 devices and DELTA (Gen 1) powers 40.
AC70 vs DELTA (Gen 1) FAQ
Q Which is better for home backup, AC70 or DELTA (Gen 1)?
DELTA (Gen 1) is the stronger overall choice in this matchup based on weighted compatibility across 53 tested devices.
Q Which has longer runtime, AC70 or DELTA (Gen 1)?
DELTA (Gen 1) has higher battery capacity (1,260 Wh), which generally supports longer runtime on the same load.
Q Which charges faster with solar panels?
AC70 has the faster best-case solar recharge profile in our panel compatibility test set.
Q Which is more portable, AC70 or DELTA (Gen 1)?
AC70 is lighter at 22.5 lbs vs 30.9 lbs. AC70 is rated portable for portability.
Q How many devices can each power station run?
DELTA (Gen 1) powers 40 of 53 tested devices, compared to 24 for AC70.