Bluetti Apex 300 Battery Backup Inspires Energy Independence On the Road and at Home
It’s becoming more popular every year to outfit your home with alternative energy solutions, and for good reason. They can help keep you powered up when the grid is down, and they can save you money on your monthly energy expenses with the right setup. Bluetti has been one of the most recent brands at the forefront of home backup power, and we got our hands on its latest portable power station, the Bluetti Apex 300. I set out to discover what its capabilities are and what other benefits it has over traditional power solutions.
Note: While you’re here, check out our favorite home generators for emergency backup power!
Bluetti Apex 300 Key Innovations
We’ll dig into some of the deeper details in a moment, but for those of you who want the TL;DR version, here are seven key innovations that set this unit apart:
- 17-year Lifespan: Driven by second-generation automotive-grade LFP cells.
- Ultra-low Self-consumption: Industry-leading internal energy efficiency only 1/5 of the market can match.
- Intelligent Adaptability: AI-driven technology actively monitors and adjusts charging/discharging, balances battery pack lifespans, and maximizes discharge performance.
- Safer Design: AI-BMS multi-layer protection system, 50% higher drop resistance, and
flame-retardant materials reduce the risk of damage or failure. - Space Efficient Power: Compact design with 40% greater energy density than competing units.
- Quick Transition: The Apex 300 is hot-swappable, allowing uninterrupted power during unit swaps.
- Dual Inverter: Power both 120V and 240V products at the same time, plus charge at 120V while supplying 240V.
Bluetti Apex 300 Portable Power Station Output and Charging
Output
The Bluetti Apex 300 is the brand’s latest portable power station. It builds on the previous generation AC300/AC500 with some welcome hardware and software improvements, as well as a streamlined design for easier setup and use.
At its heart, Bluetti uses LFP cells, and that’s an important call. LFP (lithium iron phosphate) cells are more stable than NMC (nickel manganese cobalt), so they’re less likely to hit thermal runaway. When you’re using high-capacity systems like the Apex 300, you want to minimize the risk to your home or vehicle.
LFP cells also have a much longer service life. You can expect 6,000 charge cycles before the capacity is down to 80% on the Apex 300. Some power supplies only get 500 – 1000 cycles, so it’s a significant improvement. In terms of longevity, Bluetti touts a 17-year lifespan for these units.
One of the most significant features of this model is its modular, scalable design. Whether you want a home backup battery, an RV generator, or complete off-grid independence, there’s an Apex configuration for you. You can connect up to six extra batteries (B300K / B300S / B300) per unit, letting you build the power system that fits your needs.
The base model has 2765Wh of capacity. Each of the add-on units has the same capacity, so our test configuration of the Apex 300 and one B300K has a total of 5530Wh. If you max the base unit out with six add-on packs, you’re looking at 19.3kWh.
Here’s a look at some common application runtimes with three different configurations. Note that these are continuous runtimes, and things like refrigerators and air conditioners don’t run constantly, so your effective runtime may be longer.
| Application | Apex 300 Only 2765Wh | Apex 300 + B300K 5530Wh | Apex 300 + 6 B300K 19,355Wh |
|---|---|---|---|
| Refrigerator (700W) | ~ 4 hrs | ~ 7.9 hrs | ~ 27.7 hrs |
| Microwave (1000W) | ~ 2.7 hrs | ~ 5.5 hrs | ~ 19.4 hrs |
| Central AC (3000W) | ~ 55 min | ~ 1.8 hrs | ~ 6.5 hrs |
| TV (150W) | ~ 18.5 hrs | ~ 36.9 hrs | ~ 129 hrs |
| Modem and Wi-Fi Router (20W) | ~ 5.8 days | ~ 11.5 days | ~ 40.3 days |
| Window AC (1200W) | ~ 2.3 hrs | ~ 4.5 hrs | ~ 16.1 days |
Keep in mind that if you want to run multiple items, you have to add their power needs together. You can estimate how long all of them can run with the simple equation:
Total capacity in watt-hours / watts of power needed = runtime in hours
Looking at the chart above, it’s easy to see how much more capable the Apex system is off-grid and in power outage use when you expand it. It’s not only a factor of how much capacity you have, but how much the total output potential rises.
Better yet, if you’re wiring directly into your home for a backup or off-grid power supply, you can combine multiple Apex 300 stacks to expand your overall capacity to 58kWh and maximum power output to 11.5kW.
Charging
Like many portable power stations, there’s more than one way to charge the Apex 300. You can plug it directly into a wall outlet using a standard AC charging cable. You can connect portable solar panels. You can even combine those two methods to charge faster than either one on their own.
If you’re on the road, you can use your vehicle’s 12V/24V port and charge as you drive.
But that’s only the beginning. If you’re wiring your Apex 300 stack directly into your home as a backup power source, your roof-mounted solar panels can recharge it through the panel. When the power goes out, you can also recharge using a generator if you have a switch wired into your panel for it.
How fast you can recharge is… complicated. Most of it has to do with your exact configuration and what charging options you have available. Let’s start with the basics on the Apex 300.
Using a standard 15A wall outlet, you can pull up to 1440W of charging power.
Maxing out with two 1200W solar arrays, you can pull 2400W, recharging to 80% in 40 minutes and 100% in 80 minutes.
The max input is 3840W, and there are several ways to get there. One is to combine AC from a standard wall outlet with two solar arrays. You can also use a generator, though an inverter would be best for its smoother energy wave. If you’re feeling frisky, you can use an EV charger. Even an RV charger is an option, though it has a slightly lower max input of 3600W.
Bluetti also has SolarX 4K units that provide up to 4000W and can be configured with multiple units to reach up to 30,000W of charging power. Your specific setup will determine how many SolarX 4K units you can include.
In addition to your charging sources, there’s also a charging mode selector on the Apex 300. For quiet and low-power operation, Silent mode provides a max input of 500W. By default, it charges in Standard mode, for a max AC (or AC/solar combined) input of 1,440W. Turbo mode is what you want if you’re going for the max input of 3,840W.
Here’s a look at how long it takes to charge the same configurations we looked at above.
| Charging Mode | Apex 300 Only 2765Wh | Apex 300 + B300K 5530Wh | Apex 300 + 6 B300K 19355Wh |
|---|---|---|---|
| Silent (500W) | ~ 5.5 hrs | ~ 11 hrs | ~ 38.7 hrs |
| Standard (1440W) | ~ 2 hrs | ~ 3.8 hrs | ~ 13.4 hrs |
| Turbo (3840W) | ~ 65 min | ~ 2.2 hrs | ~ 7.5 hrs |
Outlets and Ports
This unit is equipped with a generous array of input and output ports for powering and charging your home’s devices:
- (2) 15W/3A USB-A Ports
- (2) 12V/10A Car Ports
- (2) DC5521 Ports
- (2) 100W USB-C Ports
- (4) 120V AC Outlets (NEMA 5-20R)
- 240V AC Outlet (NEMA 14-50R)
- 240V AC Outlet (NEMA TT-30R)
- 120V/240V 50A AC Input/Output Outlet (PO50A)
- 120V AC Input Outlet
- DC Input
Bluetti Apex 300 Price
This power station retails for $1,549 on its own, and it comes with a 5-year warranty. Our test unit of the Apex 300 with a B300K expansion battery is $2428.
Some kits are available on Amazon. However, even more bundles are available directly through Bluetti.
Should You Buy It?
Home power backups are a smart investment for any homeowner, so what gives the Bluetti Apex 300 the edge? Where it especially stands out is its modular nature and versatile appeal. Its ability to combine expansion batteries to increase its capacity, have multiple units work together, and a generous range of outlet types offers a broad range of possibilities for off-grid power.
You don’t need to purchase an entire bundle all at once, either—if you find you need more power down the line, you can buy extra batteries and compatible accessories a la carte when you need them.
Whether you’re a homeowner looking for supplementary power for the essential appliances or you’re after true off-grid living, Bluetti has an Apex 300 configuration that works with your lifestyle. If it’s more than you’re looking for, Bluetti also offers more budget-friendly models in its power station lineup that are a good bet for value-minded homeowners.
