BLUETTI 3x B300K Expansion Batteries for Apex 300 - 8,294.4Wh

BLUETTI 3x B300K Expansion Batteries for Apex 300 - 8,294.4Wh

Name: BLUETTI 3x B300K Expansion Batteries for Apex 300 - 8,294.4Wh
Brand: Bluetti
SKU: 3*B300k-APEX300
Price: 3746.99 USD
Availability: InStock

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Bluetti

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3*B300k-APEX300

$3,746.99

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BLUETTI 3× B300K Expansion Batteries (2,764.8Wh Each) | Apex 300 Compatible | Scalable Backup Power | LiFePO₄

Double the backup with the BLUETTI 3× B300K bundle. Each battery delivers 2,764.8Wh of automotive-grade LiFePO₄ power, totaling 8,294.4Wh, designed for Apex 300 systems. With 6,000+ cycles, these batteries provide safe, reliable, and long-lasting energy for home backup, RV use, or off-grid applications. Easily stack or pair units to customize your system for partial-home, whole-home, or extended off-grid backup.

Key Features

High-Capacity Modular Storage: 3×2,764.8Wh = 8,294.4Wh, doubling runtime for Apex 300 systems.
Apex 300–Optimized LiFePO₄ Cells: Automotive-grade, long lifespan, enhanced safety, and thermal stability.
Seamless Apex 300 Compatibility: Stable communication, fast charging, and reliable integration.
Scalable Energy Expansion: Stack multiple B300K units or combine with B300/B300S to scale up to 33,177.6Wh.
Fast Charging & Standalone Power: Charge to 80% in 45 minutes; USB-A port for independent device charging.
Built to Last & Protect: Square LiFePO₄ cells, AI-BMS, aluminum casing, wireless internal frame, and efficient cooling.
3+1 Year Warranty: Extended coverage for peace of mind.

Applications

Home Backup & Emergency Power with Apex 300
RV & Van Life Power Expansion
Off-Grid Cabins, Studios, & Outdoor Living
Disaster Preparedness & Extended Outages
Scalable Modular Energy Systems

Why Choose the BLUETTI 3× B300K for Apex 300?

Double the Runtime: Combined 8,294.4Wh keeps essentials powered longer during outages or off-grid use.
Customizable & Scalable: Stack or mix with other B-series batteries for a flexible, growing setup.
Standalone & Integrated Use: Works as expansion for Apex 300 or independently via USB-A ports.
Fast, Safe, Long-Lasting: Rapid charging, robust safety features, and long-life LiFePO₄ chemistry.

What’s Included

3 × BLUETTI B300K Expansion Batteries (2,764.8Wh Each)
3 × CA90* Battery Connection Cable
3 × 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
Capacity	2,764.8 Wh
USB-A Port	12 W Max, 5 V / 2.4 A
Performance
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
Environmental
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
General
Weight	29.5 kg / 65.04 lbs
Dimensions	52.5 × 32.7 × 20.9 cm 20.67 × 12.87 × 8.23 in
Compatibility	AC200L, AC200MAX, AC300, AC500, Apex 300
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

Why Shop With Us

Authorized & Trusted Dealer: We’re fully authorized for every brand we carry, so you get genuine products backed by full manufacturer warranties.
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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.
USA-Based Service: Local, knowledgeable, and friendly support right here in the U.S.
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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 3x B300K Expansion Batteries for Apex 300 - 8,294.4Wh

$3,746.99

BLUETTI 3x B300K Expansion Batteries for Apex 300 - 8,294.4Wh

Bluetti

3*B300k-APEX300

#1 Authorized Bluetti Distributor

Free Shipping + No Sales Tax

Hassle-Free Returns & Exchanges

Talk To A Real Person

BLUETTI 3× B300K Expansion Batteries (2,764.8Wh Each) | Apex 300 Compatible | Scalable Backup Power | LiFePO₄

Key Features

Applications

Why Choose the BLUETTI 3× B300K for Apex 300?

What’s Included

BLUETTI 3x B300K Expansion Batteries for Apex 300 - 8,294.4Wh

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