Bluetti
Bluetti Apex 300
$1,529 · Lifetime $0.09/kWh over 6,000 rated cycles · MSRP $1,699Price not independently confirmed — check the retailer before buying.
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What it actually runs
Usable energy ≈ 2,350 Wh after our standard 85% inverter-efficiency assumption. Methodology
| CPAP overnightCPAP, humidifier off (40 W × 8 h) | ~59 h continuous · 7.3 days at typical daily use |
|---|---|
| EssentialsFridge + wifi + 3 lights (~190 W continuous) | ~12 h continuous · 1.4 days at typical daily use |
| Storm kitFridge + sump pump + lights + phones (~1,000 W) | ~2.4 h continuous · 0.6 days at typical daily use |
| Quick equivalents | ≈ 7 CPAP nights · 16 h of fridge · 118 phone charges |
How long will it run YOUR appliance?
Solar recharge
The Apex 300 accepts up to 2,400 W of solar input — panels beyond that sit idle. To sustain an essentials load (~1,680 Wh/day) off-grid you'd need roughly 470 W of panels, within this unit’s cap — sun permitting, it can run essentials indefinitely.
Compatible kits: Bluetti PV200 (200 W) · Bluetti PV350 (350 W) · Renogy 200W Rigid (MC4) (200 W) · Rich Solar 400W Kit (MC4) (400 W) · Bluetti PV420 (420 W) · Anker SOLIX PS400 (400 W) · EcoFlow NextGen 160W (160 W) · Renogy 400W Portable Suitcase (400 W).
Specifications
| Capacity | 2,765 Wh |
|---|---|
| Usable (85%) | 2,350 Wh |
| AC output | 3,840 W |
| Surge output | 7,680 W |
| Max solar input | 2,400 W |
| Outage switchover | UPS mode, 0 ms |
| Output waveform | Pure sine wave |
| Battery chemistry | LiFePO4 (LFP) |
| Expandable battery | Yes |
| Rated cycles | 6,000 |
| Third-party solar | MC4 panels supported |
| Lifetime cost | $0.09/kWh |
Alternatives to consider
- Bluetti Elite 200 v2 — 2,073 Wh / 2,600 W at $849 · compare head-to-head →
- Bluetti AC200L — 2,048 Wh / 2,400 W at $899 · compare head-to-head →
Common questions
How long will the Bluetti Apex 300 run a refrigerator?
About 16 hours of compressor running time — which at a realistic duty cycle covers roughly 2.0 days of normal fridge use. Estimates use usable capacity (85% of rated) and carry ±15%.
Can the Apex 300 run a CPAP?
Yes — a 40 W CPAP runs about 7 full nights per charge without humidification. A heated humidifier roughly triples the draw and cuts nights to ~2.
Can it run a space heater?
Yes on output — a 1,500 W heater draws within this unit's 3,840 W rating — but only for ~1.6 hours. Resistive heat is the fastest way to drain any battery; an electric blanket (100 W) runs ~24 hours instead.
How fast does the Apex 300 recharge from solar?
At its 2,400 W input cap, roughly 1.4 hours of good sun for a full refill (real-world 80% derate applied). Cloud cover stretches that substantially.