BLUETTI’s Apex 300 puts a 3,840W inverter and a 2,764.8Wh LiFePO4 battery in one wheeled case, and adds 120V/240V output plus room for up to six expansion batteries. That’s according to BLUETTI’s Apex 300 user manual (V1.1). This review covers the specs, the charging modes, realistic runtimes worked out with BLUETTI’s own formula, and which buyers it fits best.
As an Amazon Associate I earn from qualifying purchases, at no cost to you.
Apex 300 at a glance
- Battery: 2,764.8Wh LiFePO4 (51.2V, 54Ah), expandable with add-on packs
- Output: 3,840W continuous; Power Lifting runs resistive loads rated up to 7,680W
- Voltage: 120V or 240V from a single unit, set with a switch
- Fastest recharge: 80% in about 45 minutes on Turbo through the P050A port
- Solar: two XT60 inputs, 1,200W each (12–60V, 20A)
- Weight: about 83.78 lb (38 kg)
Check the BLUETTI Apex 300 price on Amazon
BLUETTI Apex 300 specs
Everything in this table comes from section 13, “Specifications,” of BLUETTI’s user manual.
| Spec | Apex 300 |
|---|---|
| Battery capacity | 2,764.8Wh (51.2V / 54Ah), LiFePO4 |
| AC outlets | 4 x NEMA 5-20R (120V, 20A; 1,920W max per pair) |
| RV outlet | 1 x NEMA TT-30R (120V, 3,600W max) |
| Generator-style outlet | 1 x NEMA L14-50R (120V/240V, 3,840W max) |
| P050A port | AC input/output, 120V/240V, 3,840W out |
| Total AC output | 3,840W |
| 15A AC input | 120V, 1,800W max (charging + bypass) |
| P050A AC input | 50A max; 6,000W at 120V or 12,000W at 240V (charging + bypass) |
| AC charging | 3,840W max (80% in 45 min at 59–77°F) |
| Solar / DC input | 2 x XT60, 1,200W per port, 12–60V, 20A |
| Size | 20.67 x 12.87 x 12.6 in |
| Weight | About 83.78 lb (38 kg) |
| Charging / discharging temperature | 32–104°F / -4–104°F |
| Self-consumption | About 20W (manual FAQ) |
One thing to know first: there are no USB ports
This station is built around AC power. The front panel has 20A household outlets, an RV TT-30R and an L14-50R. It has no USB-C, USB-A or 12V car socket on the unit itself.
For DC power, BLUETTI’s manual lists the separate Hub D1. It adds USB ports at up to 100W each, 12V/24V car-style sockets at 10A, and a 12V/50A or 24V/25A high-current output for RV wiring.
If you plan to plug phones and laptops straight into the box at camp, budget for the Hub D1 or keep a USB charger on one of the 20A outlets. For RV owners it’s a cleaner setup anyway: the station can sit in a bay and feed the coach through the TT-30R, while the Hub D1 handles 12V.
Charging: three modes, six sources
A switch on the panel selects how fast the Apex 300 charges. BLUETTI’s figures are below. The manual calls them reference values.
| Mode | AC input | Solar input | AC + solar | BLUETTI’s note |
|---|---|---|---|---|
| Standard (default) | 1,440W | 1,440W | 1,440W | Battery-friendly |
| Turbo | 3,840W | 2,400W | 3,840W | Quick recharge |
| Silent | 500W | 500W | 500W | Quiet, low power |
Here is what each source looks like in practice:
- Wall outlet: The included cable is rated 15A. BLUETTI sets the default grid current to 12A, so about 1,440W at 120V. That works out to roughly two hours to full (my estimate). For the 45-minute-to-80% figure, you need Turbo mode and an optional NEMA TT-30P or L14-50P to P050A cable. The manual recommends an overcurrent protection device upstream and checking your circuit with a licensed electrician.
- Solar: Two XT60 inputs take 12–60V open-circuit voltage at up to 20A and 1,200W each. You’ll need a separate solar charging cable. BLUETTI’s FAQ says third-party panels with MC4 connectors work, as long as you don’t mix panel types.
- Car: The included cigarette-lighter-to-XT60 cable charges at up to 96W from a 12V socket or 192W from a 24V socket. For faster charging while driving, BLUETTI points to its Charger 1 DC-DC charger.
- Lead-acid battery: Up to 20A with an optional cable.
- Generator: It needs pure sine wave output. BLUETTI recommends turning on Grid Self-Adaption mode in the app.
- EV charging station: Supported with an optional EV charging cable. Turn on “Charging Station” in the app’s advanced settings first.
With solar in Turbo mode, 2,400W of panels in strong sun could refill the battery in roughly 1.5–2 hours (estimate). Real output depends on the angle, heat and season.
How long will it run? BLUETTI’s formula
BLUETTI’s FAQ gives a runtime formula: battery capacity x 95% depth of discharge x inverter efficiency (over 90%) ÷ (load + about 20W self-consumption). That works out to about 2,364Wh usable. Running typical loads through it gives these figures. They’re estimates, and loads with compressors cycle on and off.
| Load | Assumed average draw | Estimated runtime |
|---|---|---|
| Wi-Fi router + modem | 20W | ~59 hours |
| CPAP (no heated humidifier) | 40W | ~39 hours |
| Full-size refrigerator | 60W average | ~30 hours |
| Fridge + lights + Wi-Fi + TV | 250W | ~8.8 hours |
| Window AC unit | 500W | ~4.5 hours |
| RV rooftop AC (13,500 BTU) | 1,300W running | ~1.8 hours |
| Space heater on high | 1,500W | ~1.6 hours |
Each matching expansion pack adds the same capacity again. With two add-on packs, a refrigerator plus essentials can run for several days (estimate). That’s the main reason to choose a modular system like this one.
Power Lifting and big loads
Power Lifting mode is off by default. When it’s on, the unit can run purely resistive loads rated 3,840W to 7,680W, such as kettles, hair dryers and electric blankets. It does this by delivering less power than the device’s label rating, so a 5,000W heater runs, just at reduced output. BLUETTI says it’s only for resistive loads.
For motors and compressors, BLUETTI’s FAQ warns that startup draw can be two to four times the rated power, so keep the total under 3,840W.
UPS and home backup modes
Plugged into the wall, it passes grid power through to your devices and switches to battery during an outage. The manual lists 0 ms on specific outlets and up to 20 ms on others. For the 0 ms switchover, set the unit to 240V, connect to the grid through the 15A AC input, and plug critical loads into the two left-hand AC outlets.
The BLUETTI app adds four operating modes:
- Standard: charges from solar and grid, with solar first.
- Time Control: charges during off-peak hours and powers your home at peak, which can lower bills on time-of-use rates.
- PV Priority: charges from the grid to a set level, then tops up from solar only.
- Custom: your own schedule, charge limits and grid input switches.
BLUETTI notes the UPS feature isn’t meant for data servers or workstations that need a high-performance UPS.
Room to grow
Expansion is the reason to buy this over a sealed box. Each add-on battery pack connects through the expansion port and roughly doubles the base runtime from the table above. Two or three units can also be linked through BLUETTI’s parallel hub for more output. My AC300 vs Apex 300 comparison lays out the full system maximums. In practice, most homes start with the base unit plus one or two packs, then add solar.
First-week setup checklist
- Update the firmware in the BLUETTI app before first use, as the manual’s first tip says. Then charge fully.
- Choose the charging mode on the selector. Leave it on “Auto” if you want the app to control it.
- Set the voltage switch to 120V or 240V. In parallel mode it’s fixed at 240V.
- Decide on ECO mode. It’s on by default and shuts off AC after four hours under 10W, or DC under 5W. Turn it off for fridges, lights and small devices under 60W.
- If you charge from a generator, turn on Grid Self-Adaption mode.
- For storage, leave it at 40–60%, power it off, and run a full cycle every three months.
Who the Apex 300 is for
- Home backup buyers who want 240V for a well pump or a transfer switch, and expect to add batteries later.
- RV owners who want the TT-30R and fast generator, solar and DC-DC charging in one system.
- Off-grid cabins that need large solar input without building a separate inverter system.
It’s not a carry-to-the-campsite station. At 83.78 lb with no USB ports on the unit, it suits a house, garage or RV bay. For a single-box alternative with built-in batteries, see my Jackery Explorer 5000 Plus review. For how it compares with BLUETTI’s older modular unit, see BLUETTI AC300 vs Apex 300. If you need whole-home capacity, my BLUETTI EP900 review and Victron vs Bluetti cover the next step up.
FAQ
How much does the BLUETTI Apex 300 weigh?
About 83.78 lb (38 kg), according to BLUETTI’s spec table. It measures 20.67 x 12.87 x 12.6 inches.
Can the Apex 300 output 240V by itself?
Yes. A selector switches it between 120V and 240V, and 240V is available on the L14-50R outlet and the P050A port.
How fast does the Apex 300 charge?
BLUETTI says 80% in about 45 minutes in Turbo mode through the P050A port, using an optional TT-30P or L14-50P cable. On the standard 15A cable it charges at about 1,440W by default.
Does it have USB ports?
Not on the unit. BLUETTI’s Hub D1 adds 100W USB ports, 12V/24V sockets and a 50A DC output.
Can I use third-party solar panels?
Yes. BLUETTI says panels with 12–60V open-circuit voltage and MC4 connectors work. Each XT60 input takes up to 1,200W and 20A. Don’t mix different panel types.
Can it charge and power devices at the same time?
Yes. The manual confirms pass-through charging.
Verdict
The BLUETTI Apex 300 is a home and RV power system that happens to have wheels. It covers 120V and 240V loads from one box, refills most of the way in under an hour, and takes serious solar. Because it grows with add-on packs, you can start small and expand as your needs or budget allow. If you’re planning a serious backup or off-grid setup, it’s one of the most flexible ways to begin.
One reply on “BLUETTI Apex 300 Review: Specs, Runtime and Who It’s For”
[…] BLUETTI Apex 300 […]