bluetti apex 300
Bluetti Apex 300:
The Modular
Powerhouse
2,764.8Wh LiFePO₄, 3,840W output (7,680W surge), simultaneous 120V/240V, black start, and massive expandability — Bluetti's new modular flagship replacing the AC300 and AC500.
product photo
⚠️ Model Consolidation
Bluetti has consolidated the AC300 and AC500 lines into the Apex 300. If you see AC300 or AC500 for sale, they're being phased out. The Apex 300 is the current product with better specs, faster charging, and improved app connectivity.
First Impressions
The Apex 300 is Bluetti's new modular flagship. It starts with a 2,764.8Wh base unit (3,840W output, 7,680W surge) and can be expanded with B300K battery modules — adding capacity in 10-minute installs. The headline feature is simultaneous 120V and 240V output from a single unit, with no parallel kit required. It also includes black start capability — it can be restarted using solar even when the battery is fully depleted.
⚡ 3,840W Output
7,680W surge — runs well pumps, AC units, and power tools simultaneously.
🔌 Simultaneous 120V + 240V
Both voltages at once from one unit — no parallel kit for 240V.
🔋 Modular Expansion
Add B300K batteries in 10 minutes — no tools, no rewiring.
☀️ Black Start
Restart from zero using solar — keeps running even if fully drained.
🔆 6 AC Outlets
More outlets than any competitor in this class.
📱 Smart App Control
One-click OTA updates and full remote monitoring.
What We Love
- Simultaneous 120V + 240V from one unit — industry-first for this price
- 3,840W output (7,680W surge) — handles the most demanding loads
- Modular B300K expansion — 10-minute battery installs
- Black start — restarts from solar when fully dead
- 6 AC outlets — more than any competitor
- 2,400W solar input — fast off-grid recharging
- Improved app — reliable setup, OTA updates
- 4,000 cycle lifespan, 5-year warranty
The Trade-offs
- Heavy — base unit requires two people to move
- Expensive — premium pricing, B300K expansion adds cost
- Large footprint — needs dedicated installation space
- App still behind Jackery in polish
- Fan noise at high output (~48dB at full load)
- 20ms EPS — not UL-certified for medical devices
Real-World Usage Notes
The modularity is the superpower. Start with the base unit and add B300K batteries as budget and needs grow — each adds 2,764.8Wh in about 10 minutes. The simultaneous 120V/240V output means you can run a 240V well pump and 120V appliances at the same time from a single unit.
Black start is a genuine safety net for off-grid users. If you fully drain the unit, you can restart it using solar input alone — no wall power needed. That's unique at this price point.
🆚 Apex 300 vs AC500 vs AC300
The Apex 300 replaces both. Higher output than AC300 (3,840W vs 3,000W), quieter than AC500, simultaneous 120V/240V from a single unit, plus black start. If you see the old models on clearance, the Apex 300 is the better buy at similar pricing.
Where to Buy
Top Pick — Modular| Specification | Bluetti Apex 300 |
|---|---|
| Battery Capacity | 2,764.8Wh (LiFePO₄) — expandable with B300K modules |
| AC Output (Continuous) | 3,840W (7,680W surge) — 120V and/or 240V |
| Voltage Output | Simultaneous 120V + 240V from single unit |
| Max Solar Input | 2,400W |
| AC Charging (Fast) | 0-80% in ~1.5 hours, full in ~2 hours |
| AC Charging Input | 2,800W max |
| AC Outlets | 6× NEMA 5-20 (120V) + 240V output |
| USB-C Ports | 2× 100W (Power Delivery 3.0) |
| USB-A Ports | Multiple (QC 3.0) |
| Expansion Battery | B300K (2,764.8Wh each) — 10-min tool-free install |
| Black Start | Yes — restarts from solar when fully depleted |
| EPS Switchover | 20ms (not UL-certified for medical) |
| Battery Lifespan | 4,000+ cycles to 80% ≈ 10+ years |
| Warranty | 5 years |
B300K Expandability
Each B300K expansion battery adds 2,764.8Wh in a 10-minute tool-free install. Multiple B300K units can be added for large-scale home backup or off-grid setups.
AC Fast Charging
The Apex 300 pulls up to 2,800W from a wall outlet, hitting 0-80% in about 1.5 hours and a full charge in 2 hours. That's competitive with the Anker F3800 and faster than the original AC500.
Solar Charging — Excellent
With 2,400W max solar input, the Apex 300 recharges fully in about 2-3 hours of peak sun with a large solar array. This is one of the highest solar input ratings available, making it a standout for off-grid use.
Black Start — A Genuine Safety Net
If the Apex 300 is completely drained, it can be restarted using solar input alone — no wall power needed. For off-grid cabins or severe outage scenarios where you forget to manage your power, this is a meaningful safeguard.
Dual Charging
AC and solar can be combined simultaneously for the fastest possible recharge times when you need to get back up quickly.
What 3,840W (and 7,680W Surge) Gets You
The Apex 300 delivers 3,840W continuous with a 7,680W surge rating, simultaneously on both 120V and 240V. Here's what that means in practice:
- ✅ 240V well pump — runs on the 240V output directly
- ✅ Window AC (1,200-2,000W startup) — runs easily
- ✅ Refrigerator + freezer + lights + router simultaneously (120V)
- ✅ Clothes dryer (240V, most residential models)
- ✅ Power tools — table saw, compressor, circular saw
- ✅ Space heater (1,500W) + other appliances
- ⚠️ Central AC (high-surge models may need two units paralleled)
- ⚠️ Level 2 EV charger (240V, 7.2kW — close to output limit)
The 240V Advantage
Most power stations force you to either buy two units and parallel them, or simply go without 240V. The Apex 300 delivers simultaneous 120V and 240V from a single unit. Your 240V well pump and 120V fridge run at the same time, from the same station.
⚠️ Weight Consideration
The base unit requires two people to move. Each B300K expansion battery adds significant additional weight. Plan your installation location before you buy.
🏠 Serious Home Backup
Runs well pumps, AC, refrigerators, and lights simultaneously. Add B300K batteries for multi-day coverage.
🌞 Off-Grid Homes
2,400W solar + black start makes this a complete off-grid power system. Never fully stuck without power.
🔌 240V Appliance Owners
One of the only portable solutions that runs 240V appliances (well pumps, dryers) without a second unit.
📦 Modular Expandability Seekers
Start with the base unit, add B300K batteries in 10 minutes as budget grows.
🚐 Large RV Owners
Handles 50A RV service. Heavy but capable of powering a full RV setup.
🔧 Job Sites
Silent, fume-free power for both 120V and 240V equipment from one unit.
Who Should Look Elsewhere
If portability is critical (under 50 lbs), look at the Bluetti AC180 or EcoFlow Delta 3 Plus. If you need a certified UPS for medical devices, look at the Anker SOLIX F3800. If you only need 120V and don't need modular expansion, the Bluetti AC200L is a more affordable starting point.
What Bluetti Got Right
The Apex 300 is the most flexible modular power station on the market. Simultaneous 120V/240V from a single unit, 3,840W output, B300K modular expansion, black start capability, and 2,400W solar input. It successfully replaces both the AC300 and AC500 with a more capable platform.
What Still Needs Work
The app is improved but still not as polished as Jackery's. The unit is heavy and needs a dedicated home. And the 20ms EPS switchover means it's not UL-certified for medical device protection.
The Verdict
For homeowners building serious backup systems, off-grid residents, or anyone who needs 240V capability and modular expandability, the Bluetti Apex 300 is a top-tier choice. It's not the cheapest or most portable — but for flexibility and raw capability, nothing else at this price point matches it.
