Looking for a modular, high-capacity solar generator system that can handle serious off-grid or backup loads? The BLUETTI AC300 + B300 combo offers powerful inverter performance, scalable battery capacity, and multiple charging options — all without gas or noise.
This guide breaks down the system’s key specs, performance features, and ideal use cases so you can decide if it’s the right fit for your energy needs.
- [Expandable Capacity] – AC300 supports up to 4 B300K battery packs (2764.8Wh each), allowing an impressive overall capacity of 11059.2Wh, ensuring uninterrupted power for your essentials during outages.
- [16 Versatile Ports] – The NEMA TT-30 is perfect for a travel trailer, and the 30A RV port for vehicle-powered devices. Besides, it also features 3000W AC/USB-A/100W USB-C/wireless charger/car port.
- [Best RV Power] – Besides the AC outlets, wireless charging pad, USB-A, USB-C, and car port, it also comes with a NEMA TT-30 and a 30A RV port to cover your diverse charging needs in RV trip.
BLUETTI AC300 + B300 Specifications
| Feature | Specification |
|---|---|
| Battery Capacity | 3,072Wh per B300 (expandable up to 12,288Wh with 4 B300s) |
| Inverter Power | 3,000W Pure Sine Wave (6,000W surge) |
| Battery Type | LiFePO4 (LFP) |
| Expandable | Yes — up to 4 x B300 modules |
| Solar Input | 2,400W max (dual MPPT, 12–150V) |
| Weight | AC300: 47.6 lbs, B300: 79.6 lbs |
| Charging Methods | AC, Solar, Car, Generator, Lead-acid battery |
| Ports | 6 AC outlets, 2 wireless charging pads, 100W USB-C, DC ports |
| App Control | Yes — via BLUETTI app (Wi-Fi & Bluetooth) |
Performance
The BLUETTI AC300 delivers 3,000W of continuous inverter power — enough to run high-demand appliances like refrigerators, power tools, and even small air conditioners. With a 6,000W surge rating, it handles startup surges with ease.
Combined with the B300’s 3,072Wh LiFePO4 battery, you get a reliable system for whole-home backup, RV travel, or off-grid living. You can also connect up to four B300 units, pushing total storage to 12.3kWh.
Battery & Specs
- LiFePO4 chemistry ensures over 3,500 cycles to 80% capacity, far outlasting lithium-ion units.
- Modular battery design means you can start small and expand later.
- The B300 also includes its own 100W USB-C and 12V/10A car output, so it can be used independently in some scenarios.
Portability & Design
BLUETTI AC300+B300 / Home Battery Backup
from: BLUETTI US
The system is modular, meaning the AC300 and B300 are separate units — making transport and setup a bit easier. That said, it’s not “portable” in the camping sense:
- AC300 unit: 47.6 lbs
- B300 battery: 79.6 lbs
Wheels or carts are recommended for mobile setups. The design is clean, durable, and has integrated handles for lifting.
Charging Options
You’ll have no shortage of charging flexibility with this system:
- AC wall charging up to 3,000W (with optional input)
- Solar charging: 2,400W max via dual MPPTs — super efficient
- Car charging (12V/24V)
- Generator-compatible
- Lead-acid battery charging supported for emergencies
With the right solar panel setup, you can fully recharge a single B300 in just 1.5–2 hours of full sun.
Price & Value
As of early 2025, the BLUETTI AC300 + B300 bundle is typically priced between $3,299–$3,599, depending on sales and retailers.
While not cheap, it offers serious long-term value for:
- High-capacity, whole-home backup
- Modular expandability
- Advanced features (app control, UPS, dual MPPT)
For power users, it competes well with Goal Zero Yeti Pro 4000 or EcoFlow Delta Pro systems.
Ideal Use Cases
This system is not overkill — if you need serious, reliable power. It’s especially ideal for:
- Whole-home backup (with optional transfer switch)
- RV or van life with large power needs
- Off-grid homesteads and tiny homes
- Workshops or mobile contractors needing clean, silent power
- Preppers looking for modular solar resilience
Pros and Cons
Pros
- Powerful 3,000W pure sine wave inverter
- Expandable up to 12.3kWh total storage
- Advanced solar input (2,400W dual MPPT)
- Long-lasting LiFePO4 battery (3,500+ cycles)
- Modular and scalable for future growth
- Wireless app control for monitoring
Cons
- Heavy (combined system over 125 lbs)
- Not waterproof — outdoor use requires cover
- Pricey compared to fixed-output power stations
- Needs external B300 to function (AC300 has no internal battery)
Final Verdict
The BLUETTI AC300 + B300 system is one of the most powerful and versatile solar generator solutions available in 2025. It’s perfect for homeowners, off-grid adventurers, and anyone who wants reliable, expandable, clean energy without relying on gas.
If you’re serious about solar power and want a long-lasting system you can scale up over time, this setup is well worth the investment.
Related:
- Bluetti AC300 vs EP500 Pro: Complete Comparison Guide
- Bluetti EP500 vs AC300: Full Comparison Guide
- EcoFlow Delta Pro vs Bluetti AC300: Full Specs and Feature Comparison
FAQs
Can the BLUETTI AC300 run a whole house?
Yes — when paired with enough B300 modules and a transfer switch, it can serve as a whole-home backup system during outages.
Can I use the B300 battery without the AC300?
Yes. The B300 includes its own DC outputs and can function as a standalone power bank in some use cases.
How many solar panels do I need for the AC300?
To max out the 2,400W solar input, you’ll need 6–8 panels rated at 300–400W each, wired correctly to match the input voltage range.
Last update on 2025-05-12 / Affiliate links / Images from Amazon Product Advertising API