BLUETTI EB70S: Runtime & Specs
By Hicham M. · Specs from BLUETTI's published documents, as of September 2026 · How we calculate
The BLUETTI EB70S is a 716 Wh LiFePO4 power station with 800 W of continuous AC output and a 1,400 W surge rating. It runs a typical full-size fridge for about 10 hours. It has been replaced or discontinued, but many are still in use.
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Simulated runtimes (not measured)
Nobody tested this unit for this page. These figures come from a computer simulation of the EB70S, and they are estimates. The plain runtime table below divides energy by average draw at 85% efficiency. The simulation also charges the battery for the power the inverter burns just by being switched on, which is why small loads come out shorter. Where we have measured a unit, the measurement is shown separately and labeled as measured.
| Device | Spec-sheet math | Simulated, typical | Likely range | Simulated at 0 °C |
|---|---|---|---|---|
| Wi-Fi router + modem | 41 hours | 23 hours | 20 hours to 27 hours | 20 hours |
| CPAP (no humidifier) | 20 hours | 15 hours | 13 hours to 16 hours | 13 hours |
| Starlink Standard | 6.8 hours | 6.2 hours | 5.9 hours to 6.5 hours | 5.3 hours |
| Refrigerator (full-size, ENERGY STAR) | 10 hours | 9 hours | 8.5 hours to 9.7 hours | 7.7 hours |
Nonstop runtime from full to battery cutoff. Likely range = middle 80% of 200 simulated runs with the uncertain inputs varied. The inverter idle draw is assumed, not published: we assumed about 13 W for this model, varied from 8 to 19 W. If the real figure is lower, real runtimes land closer to the spec-sheet column.
How this was simulated
- The battery is stepped down every 2 minutes until it reaches cutoff, for 200 runs per device. Results are seeded, so the page shows the same numbers on every build.
- Battery draw = load + inverter idle draw + 4–8% of the load + a loss that rises with load squared (4% at full output).
- Usable capacity = 92–98% of rated Wh, for protection cutoff and aging.
- At 0 °C, 80–90% of that capacity is assumed available.
- Fridges cycle on and off every 30–50 minutes at the share of the time set by their average draw. The inverter idle draw continues while the compressor is off.
- Devices that exceed this model's output or surge rating are left out. Loads are US 120 V devices.
These ranges are assumptions about a typical unit. They are not manufacturer figures for the BLUETTI EB70S. How we calculate · How we use AI
How long will the EB70S run your appliances?
Nonstop runtime for one device at a time, using typical US wattages and 85% inverter efficiency. Devices marked ✕ can't run on this model.
| Device | Avg draw | Runtime | Bar |
|---|---|---|---|
| LED light bulb | 9 W | 2.8 days | |
| Phone charging | 10 W | 2.7 days | |
| Wi-Fi router + modem | 15 W | 41 hours | |
| Laptop | 50 W | 12 hours | |
| CPAP (no humidifier) | 30 W | 20 hours | |
| CPAP with heated humidifier | 60 W | 10 hours | |
| Starlink Standard | 90 W | 6.8 hours | |
| TV | 100 W | 6.1 hours | |
| Mini fridge | 29 W | 21 hours | |
| Refrigerator | 58 W | 10 hours | |
| Chest freezer | 29 W | 21 hours | |
| Sump pump (1/3 HP) | 160 W | 3.8 hours | |
| Sump pump (1/2 HP) | 210 W | Not enough output | |
| Window AC | 225 W | 2.7 hours | |
| Drip coffee maker | 1,000 W | Not enough output | |
| Microwave | 1,500 W | Not enough output | |
| Space heater | 750 W | Not enough output | |
| Well pump | 33 W | Needs 240 V |
Fridges, freezers, pumps and AC units cycle on and off, so we use their average draw. Want a mix of devices on a schedule? Use the runtime calculator.
What the EB70S can't power
- Refrigerator (older full-size, 1990s–early 2000s): needs about 1,600 W to start
- Microwave (1,000 W cooking power): needs 1,500 W running
- Drip coffee maker (10–12 cup): needs 1,000 W running
- Electric kettle (1.7 L): needs 1,500 W running
- Toaster (2–4 slice): needs 1,000 W running
- Induction burner (single, portable): needs 1,500 W running
- Electric pressure cooker (6 qt, Instant Pot type): needs 1,000 W running
- Window AC (8,000 BTU): needs about 1,500 W to start
- Space heater (portable, 1,500 W): needs 1,500 W running
- Sump pump (1/2 HP): needs 1,050 W running
- Well pump (1/2 HP submersible): needs 240 V
- Garage door opener: needs about 1,420 W to start
- Circular saw (7-1/4 in.): needs 1,400 W running
- EV Level 1 charging (120 V, 12 A): needs 1,440 W running
Solar charging time
Hours of good sun to charge from empty, assuming panels deliver 75% of their rating.
| Panels | Power in | Hours of sun |
|---|---|---|
| 100 W of panels | 75 W | 9.5 hours |
| 200 W of panels | 150 W | 4.8 hours |
Check panel voltage and wiring with the solar charging calculator.
Full specifications
| Battery capacity | 716 Wh |
|---|---|
| Amp-hours at 12 V (converted) How we convert | 59.7 Ah (55.9 Ah at 12.8 V) |
| Battery chemistry LFP vs NMC | LiFePO4 (LFP) |
| Continuous AC output | 800 W |
| Surge (peak) output | 1,400 W |
| Boost mode | None listed |
| AC voltage | 120V |
| AC outlets | 4 |
| USB-C ports | 2 (up to 100 W) |
| USB-A ports | 2 |
| 12 V car outlet | Yes |
| Max solar input | 200 W |
| Solar voltage range | 12–28 V |
| Solar max current | 8 A |
| Max AC charging power | 200 W |
| AC charging time (maker claim) | ≈4–4.5 h (200W AC) |
| Expandable | No |
| UPS / EPS switchover What this means | Not listed |
| Cycle life What this means | 2,500 cycles |
| Weight | 21.4 lb |
| Warranty | 2 years |
Notes: On BLUETTI discontinued list (successor AC70). B80 can recharge it via Power Bank Mode (not true expansion). Pass-through charging only; no UPS time published.
Specs from BLUETTI's published documents, as of September 2026. Found an error? Tell us.
Sources
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