B300K Expansion Battery | 2,764.8Wh | BLUETTI B300K Expansion Battery – 2,764.8Wh Power Backup with LiFePO₄ Technology
by Bluetti
Save 15%
Original price
$2,699.00
Original price
$2,699.00
-
Original price
$2,699.00
Original price
$2,699.00
Current price
$2,299.00
$2,299.00
-
$2,299.00
Current price
$2,299.00
⚡ Limited stock available
🚚 Free & Fast Shipping
🛡️ 5-Year Warranty
🔒 Secure Checkout
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✅ In stock & dispatches in 1–2 business days • Tracked Australia-wide
Reliable power & hardware for Australian conditions
From off-grid energy to water and backup solutions — efficient, durable, and supported locally.
Aussie support
2–5 yr warranty
Fast dispatch
Secure checkout
$2,699.00$2,299.00
⏳Limited stock — order today for fastest dispatch.
In stock and ready to ship
Why you’ll love it
Built for Aussie conditions
Reliable in heat, dust, and long-distance travel.
Efficient & safe
High-quality components for stable, efficient operation.
Easy to use
Clear ports, connections, or fittings. Minimal setup.
Local support
Warranty coverage and Australia-based assistance.
Performance at a glance
| Metric | Value | Notes |
|---|---|---|
| Capacity | See specs | Nominal (Ah/Wh) |
| Chemistry | LiFePO₄ / AGM / etc. | Cycle life & safety vary |
| Max discharge | — | Continuous/peak as applicable |
Figures are indicative; see full technical details below.
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Best value
Mid-range option
Balanced performance & price.
Most popular
All-rounder
Great for most setups.
Pro / Heavy-duty
High-output
For bigger loads or longer duty cycles.
Popular add-ons
Solar panels
Top up off-grid faster. Bundle & save.
Cables & connectors
Plug-and-play setups without fuss.
Protection & mounting
Covers, brackets, and rails.
Monitoring
Track performance and usage.
FAQs
What’s the warranty?
2–5 years depending on model. Australia-based support.
Shipping & returns?
Fast dispatch Australia-wide. 30-day returns on eligible items.
Is it compatible with my setup?
Check specs or ask us on chat — we’ll point you to the right fit.
Do you offer instalments?
Yes — Afterpay available at checkout.
Technical details
BLUETTI B300K Expansion Battery – 2,764.8Wh Power Backup with LiFePO₄ Technology
Unmatched Power & Reliability for Your Energy Needs
The BLUETTI B300K Expansion Battery is engineered to provide exceptional power storage, whether for daily energy needs, emergency backup, or off-grid adventures. With a massive 2,764.8Wh capacity and over 4,000 life cycles, it ensures long-term reliability for home, RV, or outdoor use.
Why Choose the BLUETTI B300K?
✅ Massive 2,764.8Wh Capacity – Perfect for power outages, home backup, or off-grid living.
✅ Automotive-Grade LiFePO₄ Battery – Ensures enhanced safety, longevity, and efficiency for worry-free energy storage.
✅ Seamless Compatibility – Easily integrates with BLUETTI AC200L, AC200MAX, AC300, and AC500 power stations for a scalable energy system.
✅ Expandable Power Up to 16,588Wh – Maximize your energy storage when paired with the AC500, making it ideal for large-scale energy demands.
✅ Fast Charging Capability – When connected to AC300 or AC500, the B300K charges up to 80% in just 45 minutes, minimizing downtime.
✅ Standalone Power Hub – More than just an expansion battery, it features a USB-A port to charge smartphones, tablets, and essential devices on the go.
✅ Built to Last – Constructed with a durable aluminum casing, AI-powered Battery Management System (BMS), efficient cooling, and advanced wireless components for optimal performance.
✅ Eco-Friendly Impact – Every AC300/AC500 purchase contributes to BLUETTI’s Lighting an African Family (LAAF) Program, bringing solar-powered lighting to off-grid communities in Africa.
Key Specifications
🔋 Capacity: 2,764.8Wh
🔄 Battery Type: LiFePO₄ (4,000+ life cycles)
🔌 Compatibility: AC200L, AC200MAX, AC300, AC500 (P090D to P150D cable required for AC500, sold separately)
⚡ Max Expandable Capacity: Up to 16,588Wh with AC500
⚡ Fast Charging: 80% charge in 45 minutes (when paired with AC300 or AC500)
📱 Output Port: USB-A for direct device charging
🏋 Durability: AI-BMS technology, aluminum casing, advanced cooling
Who Should Use the BLUETTI B300K?
-
Homeowners looking for reliable power backup during outages
-
Off-grid enthusiasts & campers needing long-lasting energy storage
-
RV & van-lifers who want expandable power solutions
-
Emergency preppers seeking high-capacity, fast-charging backup power
Power Up Your Life with the BLUETTI B300K!
Whether you're preparing for emergencies, upgrading your home power system, or going off-grid, the BLUETTI B300K Expansion Battery delivers unmatched performance, reliability, and efficiency.
🔹 Order Now and experience next-level energy storage!
BLUETTI B300K Expansion Battery – 2,764.8Wh Power Backup with LiFePO₄ Technology
Unmatched Power & Reliability for Your Energy Needs
The BLUETTI B300K Expansion Battery is engineered to provide exceptional power storage, whether for daily energy needs, emergency backup, or off-grid adventures. With a massive 2,764.8Wh capacity and over 4,000 life cycles, it ensures long-term reliability for home, RV, or outdoor use.
Why Choose the BLUETTI B300K?
✅ Massive 2,764.8Wh Capacity – Perfect for power outages, home backup, or off-grid living.
✅ Automotive-Grade LiFePO₄ Battery – Ensures enhanced safety, longevity, and efficiency for worry-free energy storage.
✅ Seamless Compatibility – Easily integrates with BLUETTI AC200L, AC200MAX, AC300, and AC500 power stations for a scalable energy system.
✅ Expandable Power Up to 16,588Wh – Maximize your energy storage when paired with the AC500, making it ideal for large-scale energy demands.
✅ Fast Charging Capability – When connected to AC300 or AC500, the B300K charges up to 80% in just 45 minutes, minimizing downtime.
✅ Standalone Power Hub – More than just an expansion battery, it features a USB-A port to charge smartphones, tablets, and essential devices on the go.
✅ Built to Last – Constructed with a durable aluminum casing, AI-powered Battery Management System (BMS), efficient cooling, and advanced wireless components for optimal performance.
✅ Eco-Friendly Impact – Every AC300/AC500 purchase contributes to BLUETTI’s Lighting an African Family (LAAF) Program, bringing solar-powered lighting to off-grid communities in Africa.
Key Specifications
🔋 Capacity: 2,764.8Wh
🔄 Battery Type: LiFePO₄ (4,000+ life cycles)
🔌 Compatibility: AC200L, AC200MAX, AC300, AC500 (P090D to P150D cable required for AC500, sold separately)
⚡ Max Expandable Capacity: Up to 16,588Wh with AC500
⚡ Fast Charging: 80% charge in 45 minutes (when paired with AC300 or AC500)
📱 Output Port: USB-A for direct device charging
🏋 Durability: AI-BMS technology, aluminum casing, advanced cooling
Who Should Use the BLUETTI B300K?
-
Homeowners looking for reliable power backup during outages
-
Off-grid enthusiasts & campers needing long-lasting energy storage
-
RV & van-lifers who want expandable power solutions
-
Emergency preppers seeking high-capacity, fast-charging backup power
Power Up Your Life with the BLUETTI B300K!
Whether you're preparing for emergencies, upgrading your home power system, or going off-grid, the BLUETTI B300K Expansion Battery delivers unmatched performance, reliability, and efficiency.
🔹 Order Now and experience next-level energy storage!
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