BLUETTI B300K Expansion Battery for AC300 / AC200L - 2,764.8Wh

BLUETTI B300K Expansion Battery for AC300 / AC200L - 2,764.8Wh

Name: BLUETTI B300K Expansion Battery for AC300 / AC200L - 2,764.8Wh
Brand: Bluetti
SKU: B300k-AC300 / AC200L
Price: 1248.99 USD
Availability: InStock

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Bluetti

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B300k-AC300 / AC200L

$1,248.99

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BLUETTI B300K Expansion Battery | AC300 / AC200L Compatible | Scalable Backup Power | LiFePO₄

Reliable, high-capacity energy for AC300 / AC200L systems. The BLUETTI B300K is a 2,764.8Wh LiFePO₄ expansion battery designed to extend your AC300 or AC200L system. With automotive-grade cells and 6,000+ life cycles, it delivers safe, long-lasting, and dependable power for home backup, RV use, or off-grid adventures. Stack multiple units to customize your system for any scenario.

Key Features

High-Capacity Modular Storage (2,764.8Wh): Perfectly complements the AC300 / AC200L, extending runtime for essential devices during outages.
AC300 / AC200L-Optimized LiFePO₄ Technology: Automotive-grade cells ensure long lifespan, enhanced safety, and thermal stability over thousands of cycles.
Seamless AC300 / AC200L Compatibility: Integrates with AC300 / AC200L for stable communication, fast charging, and reliable performance.
Scalable Energy Expansion: Stack multiple B300K units or combine with B300/B300S batteries to scale up to 33,177.6Wh.
Fast Charging & Standalone Power: Charges up to 80% in 45 minutes with AC300 / AC200L. USB-A port allows independent device charging.
Built to Last & Protect: Square LiFePO₄ cells, AI-BMS technology, aluminum casing, wireless internal components, and efficient cooling ensure long-term reliability.
3+1 Year Warranty: Extended coverage provides peace of mind for your expansion setup.

Applications

Home Backup & Emergency Power with AC300 / AC200L
RV & Van Life Power Expansion
Off-Grid Cabins, Studios, & Outdoor Living
Disaster Preparedness & Extended Outages
Scalable Modular Energy Systems

Why Choose the BLUETTI B300K for AC300 / AC200L?

Extend Your Runtime: Add 2,764.8Wh for longer power during storms, outages, or off-grid adventures.
Flexible & Scalable: Stack or mix with other B-series batteries to grow your system as energy needs increase.
Standalone & Integrated Use: Works as an expansion for AC300 / AC200L or independently powers devices via USB-A ports.
Fast, Safe, and Reliable: Rapid charging, robust safety features, and long-life LiFePO₄ chemistry ensure dependable energy anytime.

What’s Included

1 × BLUETTI B300K Expansion Battery
1 × P090A Battery Expansion Cable
1 × User Manual & Warranty Documentation

Specifications

Parameter	Details
Battery Info
Model	B300K
Battery Capacity	2,764.8 Wh (51.2 V, 54 Ah)
Battery Type	LiFePO₄ (Lithium Iron Phosphate)
Cycle Life	6,000+ cycles to 80% capacity
Output
USB-A Port	12 W Max, 5 V / 2.4 A
Total Capacity	2,764.8 Wh
General
Weight	29.5 kg / 65.04 lbs
Dimensions (L × W × H)	52.5 × 32.7 × 20.9 cm / 20.67 × 12.87 × 8.23 in
Charging Temperature	0 °C to 40 °C / 32 °F to 104 °F
Discharging Temperature	−20 °C to 40 °C / −4 °F to 104 °F
Storage Temperature	Up to 1 month: −20 °C to 40 °C / −4 °F to 104 °F Up to 6 months: −20 °C to 25 °C / −4 °F to 77 °F
Working Humidity	5% to 95% RH
Max Charging Current	60 A (may decrease outside specified temps)
Max Discharging Current	70 A
Expansion Ports	2 × Expansion Port, 58.4 VDC Max, 90 A Max
Compatibility
Compatible Models	AC200L, AC200MAX, AC300, AC500, Apex 300
Warranty
Warranty	3 + 1 Years

Understanding Your Power Needs

Power Calculation Guide

Sizing Metric	Formula & Example
Energy Consumption (Wh)	Formula: Watts × Hours Example: 60W × 4 hrs = 240 Wh
Battery Capacity (Ah)	Formula: Watt-hours ÷ System Voltage (V) Example: 240 Wh ÷ 12V = 20 Ah
Inverter Size (W)	Formula: Total Watts × 1.25 (safety margin) Example: 300W × 1.25 = 375W → Use 400W inverter
Total Load Power (W)	Formula: Sum of all appliance watts used simultaneously Example: Light (10W) + Fan (75W) = 85W
Runtime (hrs) of Battery	Formula: (Battery Ah × Voltage) ÷ Total Load (W) Example: (100Ah × 12V) ÷ 240W = 5 hrs

Find Your Power Match

Need / Application	System Recommendation
Basic lighting + phone charging	Recommended Battery: 50Ah – 100Ah (12V) Inverter Size: 100W – 200W Notes: For small backup setups
Home office (laptop, fan, TV)	Recommended Battery: 150Ah – 200Ah (12V or 24V) Inverter Size: 500W – 1000W Notes: For moderate usage with 4–6 hours of backup
Home backup (fridge, lights)	Recommended Battery: 200Ah+ (24V or 48V recommended) Inverter Size: 1000W – 1500W Notes: Ideal for longer backups or heavier loads
Business / shop power backup	Recommended Battery: 300Ah+ (48V system) Inverter Size: 2000W – 3000W Notes: Suitable for commercial setups or extended power outages

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Expert Energy Guidance: Our solar and backup energy specialists are here to help with system design, product questions, and installation tips.
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Built for Energy Independence: Whether powering a cabin, prepping for emergencies, or going off-grid, our products are chosen for performance, reliability, and sustainability.

BLUETTI B300K Expansion Battery for AC300 / AC200L - 2,764.8Wh

$1,248.99

BLUETTI B300K Expansion Battery for AC300 / AC200L - 2,764.8Wh

Bluetti

B300k-AC300 / AC200L

#1 Authorized Bluetti Distributor

Free Shipping + No Sales Tax

Hassle-Free Returns & Exchanges

Talk To A Real Person

BLUETTI B300K Expansion Battery | AC300 / AC200L Compatible | Scalable Backup Power | LiFePO₄

Key Features

Applications

Why Choose the BLUETTI B300K for AC300 / AC200L?

What’s Included

BLUETTI B300K Expansion Battery for AC300 / AC200L - 2,764.8Wh

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