---
product_id: 750619395
title: "B300K, 2764.8Wh LiFePO4 Battery Pack for Portable Power Station Apex 300 Only, Extra Battery for Home, Emergency, Road Trip"
brand: "bluetti"
price: "A$3265"
currency: AUD
in_stock: true
reviews_count: 12
category: "Bluetti"
url: https://www.desertcart.com.au/products/750619395-b300k-2764-8wh-lifepo4-battery-pack-for-portable-power-station
store_origin: AU
region: Australia
---

# Wireless Internal Design 2.0 2764.8Wh Ultra-Large Capacity 6000+ Cycle Lifespan (15% longer) B300K, 2764.8Wh LiFePO4 Battery Pack for Portable Power Station Apex 300 Only, Extra Battery for Home, Emergency, Road Trip

**Brand:** bluetti
**Price:** A$3265
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your freedom—expand, endure, and electrify your lifestyle!

## Quick Answers

- **What is this?** B300K, 2764.8Wh LiFePO4 Battery Pack for Portable Power Station Apex 300 Only, Extra Battery for Home, Emergency, Road Trip by bluetti
- **How much does it cost?** A$3265 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/750619395-b300k-2764-8wh-lifepo4-battery-pack-for-portable-power-station)

## Best For

- bluetti enthusiasts

## Why This Product

- Trusted bluetti brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Always Ready USB:** Built-in USB charging port for those critical 'just-in-case' moments—power your devices anywhere.
- • **Power That Lasts:** Massive 2764.8Wh capacity to keep your essentials running through any outage or adventure.
- • **Endurance Redefined:** Next-gen LiFePO4 cells deliver 6000+ cycles at 80% capacity—15% longer lifespan than typical batteries.
- • **Sleek & Smart Design:** Wireless internal architecture minimizes failure points and maximizes portability for seamless expansion.
- • **Plug & Play Versatility:** Universal expansion port connects effortlessly with Apex 300, scaling your power needs instantly.

## Overview

The BLUETTI B300K is a high-capacity 2764.8Wh LiFePO4 battery pack designed exclusively for the Apex 300 portable power station. Featuring advanced cells with over 6000 charge cycles and a wireless internal design, it offers enhanced durability, compactness, and reliability. Perfect for home backup, emergencies, and off-grid adventures, it includes a built-in USB port and universal expansion compatibility, making it a smart, scalable power solution for professionals who demand resilience and flexibility.

## Description

desertcart.com: BLUETTI B300K, 2764.8Wh LiFePO4 Battery Pack for Portable Power Station Apex 300 Only, Extra Battery for Home, Emergency, Road Trip : Patio, Lawn & Garden

Review: Great value, reliability, and lifespan - My Review of the BLUETTI B500K Expansion Battery. The BLUETTI B500K is a solidly built, no-frills 5,120Wh (5.12 kWh) LiFePO4 expansion battery—well-made and reliable. I’ve found BLUETTI consistently outperforms more hyped brands in the portable power space. I’ve owned an AC300 for nearly 5 years, and their customer support has been exceptional—friendly, knowledgeable (the reps often seem like engineers), and quick to resolve issues. BLUETTI’s edge comes from using LiFePO4 cells: over 4,000 cycles to 80% capacity means 10+ years of daily use, with better safety (no thermal runaway risk) than standard lithium-ion alternatives. At (promo price, it delivers excellent value at about $380 per kWh with the promo pricing that comes up often, it’s competitive-with EcoFlow or Anker options, especially factoring in longer life and broad compatibility (AC300, AC200L/MAX, AC500, Apex 300). Stack up to six per unit for massive scaling (up to 100 kWh systems). The hardware stays straightforward, but the BLUETTI app adds real utility: real-time SOC, power input/output, historical charts for solar generation vs. usage, and trends over time. This helps optimize—avoid wasting excess solar when batteries fill, adjust loads to maintain healthy charge levels, or prep better for outages by tracking patterns. It connects via Bluetooth or WiFi/cloud and has improved significantly. Not the lightest (~99 lbs) for moving, but perfect for stationary home backup or off-grid setups tied to my AC300—it doubles capacity seamlessly and powers essentials for days. If you’re in the BLUETTI ecosystem or building expandable storage, the B500K is a smart, cost-effective upgrade. BLUETTI keeps delivering where it matters
Review: Excellent - An xtra battery , plug and play right out of the box, plugs in to your portable power station to get xtra power, needed to get you through the night until the Sun comes out again, at $0.43 per Wh is an unbeatable price, almost 2800 Wh , cable is 32 inches long total, each connector is 4 inches and cable is 26 inches long, also update the firmware right away, very portable

## Features

- [Universal Expansion Compatibility] - The B300K seamlessly connects with Apex 300 through its expansion port, enabling flexible capacity upgrades for any scenario.
- [Next-Generation Cells] - Equipped with advanced cells that provide at least 6,000 cycles to 80% capacity, offering a 15% boost in lifespan. Plus, they perform even better at high temperatures.
- [Next-Gen Design Architecture 2.0] - The B300K expansion battery pack's wireless internal design minimizes the risk of failure and maximizes space efficiency, resulting in a more compact, portable product.
- [Built-In USB Charging Port] - It's like having a massive power bank with a USB port, ready for those "just-in-case" moments. Connect it to any compatible BLUETTI power station for added versatility.
- [What You Get] - BLUETTI B300K expansion battery, CA90 battery extension cable for the BLUETTI Apex 300, and user manual.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0FJ3XHFXP |
| Best Sellers Rank | #35,080 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #465 in Solar & Wind Power Parts & Accessories |
| Brand | BLUETTI |
| Customer Reviews | 4.7 4.7 out of 5 stars (251) |
| Date First Available | July 21, 2025 |
| Engine Type | Battery |
| Fuel Type | Electric |
| Included Components | BLUETTI B300K expansion battery, CA90 battery extension cable for Apex 300 |
| Item Package Quantity | 1 |
| Item Weight | 65 pounds |
| Item model number | B300K |
| Manufacturer | BLUETTI |
| Part Number | B300K |
| Power Source | Solar/AC/Car/lead-acid/Generator powered |
| Product Dimensions | 20.67"L x 12.87"W x 8.23"H |
| Recommended Uses For Product | Home Backup/Off-grid/Emergency/RV/Camping/Outdoor |
| Special Feature | 2764.8Wh Ultra-Large Capacity, 4000+ Long Cycles, Built-In USB Charging Port, Ultra-Fast Charging Speed, Wide Compatibility |
| Special Features | 2764.8Wh Ultra-Large Capacity, 4000+ Long Cycles, Built-In USB Charging Port, Ultra-Fast Charging Speed, Wide Compatibility |
| Starting Wattage | 3000 Watts |
| Style | BLUETTI B300K for Apex 300 |
| Voltage | 120 Volts (AC) |
| Wattage | 2764.8 Watt-hours |

## Product Details

- **Brand:** BLUETTI
- **Fuel Type:** Electric
- **Included Components:** BLUETTI B300K expansion battery, CA90 battery extension cable for Apex 300
- **Item Weight:** 65 Pounds
- **Power Source:** Solar/AC/Car/lead-acid/Generator powered
- **Product Dimensions:** 20.67"L x 12.87"W x 8.23"H
- **Recommended Uses For Product:** Home Backup/Off-grid/Emergency/RV/Camping/Outdoor
- **Voltage:** 120 Volts (AC)
- **Wattage:** 2764.8 Watt-hours

## Images

![B300K, 2764.8Wh LiFePO4 Battery Pack for Portable Power Station Apex 300 Only, Extra Battery for Home, Emergency, Road Trip - Image 1](https://m.media-amazon.com/images/I/61uaRBEAVbL.jpg)

## Questions & Answers

**Q: What power station can the B300K be connected with?**
A: B300K can be connected to BLUETTI power station models: AC200L, AC200MAX, AC300, etc. However, this B300K with CA90 battery extension (short cable) can only be connected to Apex 300.

**Q: What's the recharging ways of B300K?**
A: B300K's charging input power matches that of the connected host power station, allowing it to be charged simultaneously with the host through wall chargers, solar panels, car chargers, or generators.

**Q: Can the B300K battery module be used alone?**
A: Yes. B300K features an 12W USB-A making the battery module works flawlessly when standalone.

**Q: B300K & portable power station charge together, reaching 80% in 45 min. Does this mean both reach 80% at the same time?**
A: "80% charging in 45 minutes" refers to the B300K's maximum charging capacity. If the energy storage device's input power is insufficient, it will not be possible to charge both devices to 80% in 45 minutes.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great value, reliability, and lifespan
*by D***D on January 27, 2026*

My Review of the BLUETTI B500K Expansion Battery. The BLUETTI B500K is a solidly built, no-frills 5,120Wh (5.12 kWh) LiFePO4 expansion battery—well-made and reliable. I’ve found BLUETTI consistently outperforms more hyped brands in the portable power space. I’ve owned an AC300 for nearly 5 years, and their customer support has been exceptional—friendly, knowledgeable (the reps often seem like engineers), and quick to resolve issues. BLUETTI’s edge comes from using LiFePO4 cells: over 4,000 cycles to 80% capacity means 10+ years of daily use, with better safety (no thermal runaway risk) than standard lithium-ion alternatives. At (promo price, it delivers excellent value at about $380 per kWh with the promo pricing that comes up often, it’s competitive-with EcoFlow or Anker options, especially factoring in longer life and broad compatibility (AC300, AC200L/MAX, AC500, Apex 300). Stack up to six per unit for massive scaling (up to 100 kWh systems). The hardware stays straightforward, but the BLUETTI app adds real utility: real-time SOC, power input/output, historical charts for solar generation vs. usage, and trends over time. This helps optimize—avoid wasting excess solar when batteries fill, adjust loads to maintain healthy charge levels, or prep better for outages by tracking patterns. It connects via Bluetooth or WiFi/cloud and has improved significantly. Not the lightest (~99 lbs) for moving, but perfect for stationary home backup or off-grid setups tied to my AC300—it doubles capacity seamlessly and powers essentials for days. If you’re in the BLUETTI ecosystem or building expandable storage, the B500K is a smart, cost-effective upgrade. BLUETTI keeps delivering where it matters

### ⭐⭐⭐⭐⭐ Excellent
*by J***D on January 26, 2026*

An xtra battery , plug and play right out of the box, plugs in to your portable power station to get xtra power, needed to get you through the night until the Sun comes out again, at $0.43 per Wh is an unbeatable price, almost 2800 Wh , cable is 32 inches long total, each connector is 4 inches and cable is 26 inches long, also update the firmware right away, very portable

### ⭐⭐⭐⭐⭐ Great product
*by C***S on December 24, 2025*

Bluetti batteries are amazing great life I use them in my trailer during the summer and for emergency power for my house in the winter I love these setups they are amazing and super easy to use.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.au/products/750619395-b300k-2764-8wh-lifepo4-battery-pack-for-portable-power-station](https://www.desertcart.com.au/products/750619395-b300k-2764-8wh-lifepo4-battery-pack-for-portable-power-station)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-28*