BLUETTI B300S Expansion Battery 3072Wh
- 3,072Wh LiFePO4 battery for over 3,500 life cycles.
- Standalone power station with 100W USB-C, 12V/10A car port and USB-A port.
- Flexible charging via AC, solar and car power sources.
- Responsive even in freezing days with Temperature Adaptive Function.
- Compatible with AC500 for a maximum of 36,864Wh capacity. (2*AC500+12*B300S)
- Works with AC500+B300 ( need to buy extra P150D to P090D cable )
The BLUETTI B300S Expansion Battery is a high capacity energy storage solution designed to scale BLUETTI AC500 power systems for serious home backup and off grid use in Jamaica. With a 3072Wh LiFePO4 battery and advanced temperature control, it delivers reliable performance in both normal and cold environments.
3072WH LiFePO₄ Battery With Long Cycle Life
The B300S features a 3072Wh LiFePO4 battery rated for over 3500 charge cycles. It provides stable and long lasting energy storage for extended power outages, solar setups, and high demand backup systems.
Designed for AC500 System Expansion
This expansion battery is fully compatible with the BLUETTI AC500 system. When combined with two AC500 units and up to twelve B300S batteries, total system capacity can reach 36864Wh. It can also work with AC500 and B300 units using an additional P150D to P090D cable.
Standalone Power Output for Essential Devices
The B300S can function as a standalone power source when needed. It includes a 100W USB C port, USB A port, and a 12V 10A car output for charging phones, laptops, routers, and other essential electronics.
Flexible Charging Options
Recharge the B300S using AC power, solar panels, or a vehicle power source when connected to compatible BLUETTI systems. This flexibility supports both grid connected and off grid energy setups.
Temperature Adaptive Performance
The built in temperature adaptive function allows the B300S to operate reliably even in freezing conditions. This makes it suitable for outdoor installations, cabins, and environments with fluctuating temperatures.
Built for Large Scale Backup System
The B300S is ideal for expanding whole home backup systems, solar energy storage, RV power setups, and long term off grid applications where dependable energy storage is required.
FAQS
What is the battery capacity of the BLUETTI B300S and how long can it power my home during an outage?
The BLUETTI B300S holds a 3,072Wh LiFePO4 battery, which is enough to run essential home appliances like a refrigerator, lights, fans, and a router for many hours during a power outage. For whole-home backup, you can stack up to twelve B300S units with two AC500 power stations to reach a massive 36,864Wh total capacity.
Is the BLUETTI B300S compatible with the AC500 power station?
Yes, the B300S is specifically designed as an expansion battery for the BLUETTI AC500 system. You can connect up to twelve B300S units across two AC500 stations to build a scalable home backup system. If you want to use it with an older AC500 and B300 combo, you'll need an additional P150D to P090D cable sold separately.
Can the BLUETTI B300S work as a standalone power station without the AC500?
Yes, the B300S can operate independently as a standalone power source. It features a 100W USB-C port, a standard USB-A port, and a 12V/10A car output, allowing you to charge phones, laptops, routers, and small electronics directly without needing the AC500 unit.
How many times can the BLUETTI B300S be charged before the battery degrades?
The B300S uses LiFePO4 (lithium iron phosphate) chemistry, which is rated for over 3,500 charge cycles before capacity noticeably degrades. This makes it one of the longest-lasting battery technologies available, offering roughly 10+ years of daily use under normal conditions.
Does the BLUETTI B300S work in cold weather or freezing temperatures?
Yes, the B300S includes a built-in Temperature Adaptive Function that allows it to perform reliably even in freezing conditions. This makes it an excellent choice for outdoor solar installations, off-grid cabins, RV setups, and environments where temperatures fluctuate significantly.
What are the charging options available for the BLUETTI B300S?
When connected to a compatible BLUETTI system like the AC500, the B300S can be recharged via AC wall power, solar panels, or a vehicle power source. This multi-source charging flexibility makes it ideal for both grid-connected home backup and fully off-grid solar energy setups.
What is the maximum system capacity I can build using the BLUETTI B300S?
The maximum expandable capacity using B300S batteries is 36,864Wh, achieved by connecting twelve B300S units across two BLUETTI AC500 power stations. This large-scale configuration is designed for whole-home backup, solar farms, and serious long-term off-grid power systems.
Is the BLUETTI B300S good for solar energy storage in Jamaica?
Absolutely — the B300S is well-suited for solar energy storage in Jamaica, where grid outages and high electricity costs make off-grid solutions highly practical. Its LiFePO4 chemistry handles heat and repeated cycling well, and its flexible solar charging input makes it a strong match for tropical solar setups.
Can I use the BLUETTI B300S for an RV or outdoor off-grid setup?
Yes, the B300S is designed for exactly these use cases. Its temperature-adaptive function, long cycle life, and flexible charging options make it practical for RVs, mobile off-grid rigs, and remote cabin installations where reliable energy storage is critical.
What devices can I charge directly from the BLUETTI B300S standalone ports?
Using its built-in ports, the B300S can directly charge smartphones, tablets, laptops (via 100W USB-C), routers, and 12V car accessories like coolers or lighting through its 12V/10A car port. These standalone ports are designed to keep your essential devices running even without the AC500 connected.
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