Bluetti
BLUETTI AC500 + B300S Home Battery Backup System
Best high-capacity power station for homeowners needing reliable emergency backup.
The BLUETTI AC500 + B300S is a powerful home battery backup system offering reliable energy security. It delivers a robust 5,000W continuous AC output, expandable up to 36.8kWh for extended power needs. Featuring a durable LiFePO₄ battery with over 3,500 cycles, it ensures long-term performance. Recharge quickly via solar, reaching 80% in just 1.5 hours. The system is easily managed remotely through the Smart App, making it ideal for home backup or off-grid living.
$2999.00
Owner Satisfaction
4.6
/ 5
Category Rank
77
/ 870
#77 in UPS
Price vs Category Average
+83%
Above average
Rated AC Output Power
5000
/ ,W
Who it's for
- Homeowners running heavy-duty appliances during power outages
- Users needing scalable energy storage for custom backup requirements
- Long-term investors prioritizing battery longevity and cycle life
Who should skip it
- Budget-conscious shoppers seeking affordable emergency power solutions
- Users requiring a portable power station for frequent travel
- DIY enthusiasts avoiding complex electrical installation projects
Performance breakdown
Power Output Capacity
The 5,000W continuous output handles heavy-duty appliances with ease.
Scalability
Expandable storage up to 36.8kWh offers unmatched flexibility for long outages.
Charging Speed
Rapid solar input ensures you stay powered even during extended grid failures.
Battery Longevity
LiFePO₄ chemistry provides reliable performance for thousands of charge cycles.
Connectivity
Sixteen output ports provide comprehensive power access for all your devices.
System Management
Intuitive app integration makes remote monitoring and control remarkably simple.
Key Specs
Rated AC Output Power
5,000W
Surge Power
10,000W
Battery Chemistry
LiFePO₄ with 3,500+ cycles to 80%
Maximum Expandable Capacity
36,864Wh
Maximum Combined Input Power (AC + Solar)
8,000W
Weight
30 kg
Dimensions
520mm depth x 325mm width x 358mm height
Operating Temperature Range
-20°C to 40°C
Features
- Powers demanding appliances with 5,000W continuous output.
- Ensures energy security with 24/7 EPS.
- Scalable storage up to 36.8kWh.
- Rapid solar charging for quick replenishment.
- Remote monitoring and control via smartphone app.
- Comprehensive power access with 16 output ports.
- Durable LiFePO₄ battery for long-term reliability.
- Four-year warranty for peace of mind.
What customers say
The Bluetti AC500 + B300S system receives overwhelmingly positive customer sentiment, establishing itself as a premium, robust solution for serious home energy backup and off-grid applications. Customers frequently praise the system's immense power output (5000W), which reliably handles high-draw appliances like well pumps and air conditioners, a critical factor during extended power outages. The modular design is a standout feature; users appreciate the flexibility to scale capacity by adding B300S battery packs, tailoring the investment precisely to their energy needs. The adoption of durable LiFePO4 battery technology instills high confidence regarding longevity and safety, significantly boosting the perceived quality. Setup is often described as surprisingly straightforward for such a powerful system, contrasting favorably with complex traditional generator installations. However, the sentiment is tempered by a few key considerations. The primary barrier to entry is the substantial initial investment, leading some users to debate the overall value proposition despite the high quality. Furthermore, while the components are powerful, they are also heavy and bulky, making relocation challenging. Minor critiques occasionally surface regarding the accompanying mobile app's stability or fan noise under maximum load, though these are generally viewed as minor inconveniences given the system's performance capabilities. Overall, the sentiment reflects deep satisfaction among users who prioritize reliable, scalable, and high-output power, viewing the AC500 as a transformative step toward energy independence.
Know before you buy
Yes. With a 5,000W continuous output and a 10,000W surge capacity, it is designed to power demanding household appliances, including refrigerators, air conditioners, and power tools, without issue.
The system uses LiFePO₄ battery chemistry, which is rated for over 3,500 charging cycles before dropping to 80% of its original capacity. With daily use, this translates to roughly a decade of reliable performance.
Yes, the AC500 features a 24/7 Uninterruptible Power Supply (UPS) function. It detects power outages and switches to battery power automatically, ensuring your connected devices stay running without interruption.
Absolutely. The system is modular and can be expanded up to a maximum capacity of 36.8kWh by connecting additional B300S battery modules, allowing you to scale your backup based on your specific energy requirements.
The system supports rapid solar charging. Under optimal conditions, you can reach an 80% charge in approximately 1.5 hours by utilizing the maximum combined input power.
The AC500 is designed to operate within a temperature range of -20°C to 40°C. While it functions in cold environments, keep in mind that extreme temperatures can impact battery efficiency and charging speeds.
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