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BLUETTI B500K Expansion Battery product image 1

BLUETTI B500K Expansion Battery | 5,120Wh

by BLUETTI
$1,999.00
Pay as low as $166.58/mo with Shop Pay Installments — 0% APR options available.
✅ In Stock — Ships within 2–4 business days

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🚚 Free Shipping to contiguous US  •  🔁 30-Day Returns  •  💰 Price Match Guarantee  •  🔒 Secure Checkout

🛡 Warranty: Manufacturer warranty included. Coverage varies by product — see product description below for full warranty details.

The B500K is the high-capacity expansion battery for buyers who care about runtime more than portability. It adds 5.12 kWh of LiFePO4 storage to compatible BLUETTI systems, which makes it a strong fit for home backup, RV energy storage, and small off-grid setups.

Key Features

  • 5,120Wh capacity: Adds a serious block of storage to a compatible BLUETTI system.
  • Scalable storage: Build from partial backup to larger home or small business backup.
  • LiFePO4 battery: Rated for 4,000+ cycles to 80% original capacity.
  • Broad BLUETTI compatibility: Works with Apex 300, AC300, AC500, AC200L, AC200MAX, and B300K.
  • Fixed or mobile setup: Mount it for a cleaner install or pair with a trolley when mobility matters.
  • Part of a larger system: Works with SolarX 4K, Hub D1, and other BLUETTI ecosystem components.

Specifications

Battery Capacity 5,120Wh
Battery Type LiFePO4
Cycle Life 4,000+ cycles to 80% original capacity
Expansion Ports 2 expansion ports, 58.4VDC max, 90A max
Charging Current 65A max
Discharging Current 70A max
Compatibility AC200L, AC200MAX, AC300, AC500, Apex 300, B300K
Weight 99.21 lb
Dimensions 20.47 x 12.87 x 12.15 in
Warranty 4 years

What's Included

  • B500K battery pack
  • CA90 battery expansion cable
  • Documents

Compatible Add-Ons

  • BLUETTI Apex 300
  • BLUETTI Charger 1
  • BLUETTI 350W solar panel
  • B300K expansion battery
Description

The B500K is the high-capacity expansion battery for buyers who care about runtime more than portability. It adds 5.12 kWh of LiFePO4 storage to compatible BLUETTI systems, which makes it a strong fit for home backup, RV energy storage, and small off-grid setups.

Key Features

  • 5,120Wh capacity: Adds a serious block of storage to a compatible BLUETTI system.
  • Scalable storage: Build from partial backup to larger home or small business backup.
  • LiFePO4 battery: Rated for 4,000+ cycles to 80% original capacity.
  • Broad BLUETTI compatibility: Works with Apex 300, AC300, AC500, AC200L, AC200MAX, and B300K.
  • Fixed or mobile setup: Mount it for a cleaner install or pair with a trolley when mobility matters.
  • Part of a larger system: Works with SolarX 4K, Hub D1, and other BLUETTI ecosystem components.

Specifications

Battery Capacity 5,120Wh
Battery Type LiFePO4
Cycle Life 4,000+ cycles to 80% original capacity
Expansion Ports 2 expansion ports, 58.4VDC max, 90A max
Charging Current 65A max
Discharging Current 70A max
Compatibility AC200L, AC200MAX, AC300, AC500, Apex 300, B300K
Weight 99.21 lb
Dimensions 20.47 x 12.87 x 12.15 in
Warranty 4 years

What's Included

  • B500K battery pack
  • CA90 battery expansion cable
  • Documents

Compatible Add-Ons

  • BLUETTI Apex 300
  • BLUETTI Charger 1
  • BLUETTI 350W solar panel
  • B300K expansion battery
Shipping

Shipping is FREE on all orders to customers within USA.

We don't want to mess around with fine print and extra charges, we like things to be simple and easy. 

Want to know about our Returns Policy? Read more here.

Order Confirmation:

As soon as you place your order you will receive an order confirmation e-mail.  This means that we have received your order in our system and pre-authorised your credit card for the purchase.  

As soon as we receive your order we automatically check to confirm that your order is in stock and available for immediate shipment.  If your item is on back-order or unavailable we will void the pre-authorisation and reach out to you via e-mail to see if alternate arrangements can be made.  

If your item(s) are available for immediate shipment (within 5 business days) we will process the charges and get to work preparing your order for shipment.

Order Shipment:

If your order is in stock and we process the charges to your credit card it will ship within three business days from the date of your order.  

We will send you shipping confirmation within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  

If you do not receive shipping confirmation from us within four business days of your order feel free to follow up with us at sales@homesteadheavy.com.

International Orders:

Please be aware that our products are made specifically for the USA market. This means that they require a 110V electrical system to function correctly. 

Our products have generally not been certified for use with other countries electrical safety standards but all of our products are certified to [country of sale] standards.

We will happily ship our fantastic products to international customers. Due to the extremely wide variety of product dimensions we will provide an up to date shipping price quote for you on request.

If you are happy with our shipping quote we will prepare an order and payment though our ultra secure online payment gateway.

Damages:

Please inspect the packaging of your item(s) when they arrive, if you notice any damage you should make note of it when signing for delivery or do not agree to accept the delivery.

If you do accept delivery you are required to immediately take photos using your smart phone or camera of the damaged packaging or products inside the packaging. 

If your item(s) do arrived damaged please send photos to sales@homesteadheavy.com, then visit our Returns page and lodge your return claim online.

Why Buy From Us

We get it. You've got a lot of choice when it comes to online retailers. Here's why we think you should shop with us at Homestead Heavy.

But first, you should definitely hear from our customers here.

  • Free Shipping USA wide. No extra charges. Ever.

  • Price Match Guarantee. Best prices online guaranteed.

  • 30 Day Easy Returns. No happy with your product, we'll take it back no questions asked.

  • Great Service. We pride ourselves on the best service, anywhere.

  • Your Satisfaction Guaranteed. We handpick our products for quality, we know you'll love them. But is there is ever something wrong, we'll fix it.

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