BLUETTI Apex 300: Runtime & Specs
By Hicham M. · Specs from BLUETTI's published documents, as of September 2026 · How we calculate
The BLUETTI Apex 300 is a 2,765 Wh LiFePO4 power station with 3,840 W of continuous AC output, including 240 V. It runs a typical full-size fridge for about 41 hours.
We may earn a commission if you buy through these links. It never changes our numbers, and every model in our database is included whether or not it pays us. Learn more.
Simulated runtimes (not measured)
Nobody tested this unit for this page. These figures come from a computer simulation of the Apex 300, 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 | 6.5 days | 3 days | 3 days to 3.1 days | 2.6 days |
| CPAP (no humidifier) | 3.3 days | 2.1 days | 2.1 days to 2.2 days | 43 hours |
| Starlink Standard | 26 hours | 23 hours | 22 hours to 23 hours | 19 hours |
| Refrigerator (full-size, ENERGY STAR) | 41 hours | 32 hours | 31 hours to 33 hours | 27 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 BLUETTI’s own figure for this model, about 20 W, from its user manual. See why idle draw matters.
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 Apex 300. How we calculate · How we use AI
How long will the Apex 300 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 | 10.9 days | |
| Phone charging | 10 W | 10.4 days | |
| Wi-Fi router + modem | 15 W | 6.5 days | |
| Laptop | 50 W | 47 hours | |
| CPAP (no humidifier) | 30 W | 3.3 days | |
| CPAP with heated humidifier | 60 W | 39 hours | |
| Starlink Standard | 90 W | 26 hours | |
| TV | 100 W | 24 hours | |
| Mini fridge | 29 W | 3.4 days | |
| Refrigerator | 58 W | 41 hours | |
| Chest freezer | 29 W | 3.4 days | |
| Sump pump (1/3 HP) | 160 W | 15 hours | |
| Sump pump (1/2 HP) | 210 W | 11 hours | |
| Window AC | 225 W | 10 hours | |
| Drip coffee maker | 1,000 W | 2.4 hours | |
| Microwave | 1,500 W | 1.6 hours | |
| Space heater | 750 W | 3.1 hours | |
| Well pump | 33 W | 3 days Surge? |
Surge? = this model has no published surge rating, so starting motors and compressors may or may not work. 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 Apex 300 can't power
Every appliance in our wattage chart is within its output limits.
Solar charging time
Hours of good sun to charge from empty, assuming panels deliver 75% of their rating and one array per 1,200 W solar input.
| Panels | Power in | Hours of sun |
|---|---|---|
| 100 W of panels | 75 W | 37 hours |
| 200 W of panels | 150 W | 18 hours |
| 400 W of panels | 300 W | 9.2 hours |
| 1,200 W of panels | 900 W | 3.1 hours |
| 2,400 W of panels (split across inputs) | 1,800 W | 1.5 hours |
Check panel voltage and wiring with the solar charging calculator.
Full specifications
| Battery capacity | 2,765 Wh |
|---|---|
| Amp-hours at 12 V (converted) How we convert | 230 Ah (216 Ah at 12.8 V) |
| Battery chemistry LFP vs NMC | LiFePO4 (LFP) |
| Continuous AC output | 3,840 W |
| Surge (peak) output | Not published |
| Power Lifting (heating devices) | 7,680 W |
| AC voltage | 120V/240V |
| AC outlets | 6 |
| USB-C ports | 0 |
| USB-A ports | 0 |
| 12 V car outlet | No |
| Max solar input | 2,400 W (1,200 W per input) |
| Solar voltage range | 12–60 V |
| Solar max current | 20 A |
| Max AC charging power | 3,840 W |
| AC charging time (maker claim) | 0–80% in 45 min (3,840W) |
| Expandable | Yes, up to 19,354 Wh |
| UPS / EPS switchover What this means | 20 ms |
| Cycle life What this means | 6,000 cycles (to 80%) |
| Weight | 83.8 lb |
| Warranty | 5 years |
Notes: 4x 5-20R, TT-30R, 14-50R (+P050A). No USB/12V on unit (Hub D1). 0 ms UPS only at 240V on set outlets. 3,840W AC via P050A, 1,800W via 15A inlet. 2x1,200W PV. 6x B300K max.
Specs from BLUETTI's published documents, as of September 2026. Found an error? Tell us.
Sources
Similar power stations
- Apex 300 vs BLUETTI Elite 300
- Apex 300 vs Anker SOLIX F3000
- Apex 300 vs BLUETTI Elite 200 V2
- Apex 300 vs EcoFlow DELTA 3 Max
- Apex 300 vs EcoFlow DELTA 3 Max Plus
- Apex 300 vs BLUETTI AC200L