BLUETTI
3*B300K for Apex 300
With three BLUETTI B300K expansion batteries, this listing adds 8294.4Wh to an Apex 300. It is the 3-pack option for owners who want more runtime than a pair provides.
$2,877.60
BLUETTI AC300+B300K+3*350W Solar | Home Battery Backup
$2,877.60
In stockShips from Baton Rouge, LA30-day warrantyFrom delivery, on eligible productsFree shippingProcessing 1 business day after payment; delivery about 2–7 business days after dispatch
Shipping & delivery30-day returnsWarranty
Check local voltage, plug, installation, and product-certification requirements before ordering. We confirm compatibility and availability for your destination before payment.
Overview
For larger solar harvests, this version of the AC300 and B300K bundle comes with three 350W solar units. It gives homeowners a modular battery backup with the biggest solar pairing in this range.
Planning a system? Read our guide: How to size a battery backup system for your home.
Key benefits
- Three 350W solar units make the most of the AC300's high solar input.
- The modular layout lets you add B300 modules as your backup needs grow.
- A 3000W pure sine wave inverter handles household loads and sensitive electronics.
Key features
- Fully modular design that accepts up to four B300 battery modules
- Up to 2400W of solar input
- 3000W pure sine wave inverter
- 5400W maximum input rate
- Supports a 240V connection
- 24/7 UPS home backup
Ideal use
Homeowners planning a solar-first backup system for regular outages or partial off-grid use.
Key specifications
- Model / SKU
- AC300+B300K+350W*3-SPFUS-00
- Brand
- BLUETTI
- Category
- Batteries
- Voltage
- 240V
- Rated power
- 350 W
From the manufacturer
Buying Tips: 1. All orders for purchasing bundles will be shipped by different packages. There will be multiple tracking numbers. All of them may not reach you at the same time. 2. If your credit card is limited to pay for the larger amounts, pls contact our customer service team to pay for products by paypal or bank transfer. *100% modular, accept up to 4xB300. *2400W Unrivaled Solar Input. *3000W Pure Sine Wave Inverter. *5400W Blazing Input Rate. *240V Connection Available. *24/7 UPS Home Backup *4 Years Worry-Free Warranty. Click To Download Bluetti AC300 User Manual Click To Download Bluetti B300 User Manual
Warranty terms mentioned in this description are the manufacturer’s. Our own coverage is the 30-day limited warranty.
Before you order
We confirm compatibility, installation requirements, and delivery details with you during order review, before any payment. Home electrical work may require a qualified installer.
Talk to our team about whether the 3x350W solar version of this AC300 bundle fits your site and goals. Message our team on WhatsApp.
More in batteries
BLUETTI
BLUETTI AC300+B300+3*PV200D | Home Battery Backup
This variant adds a third PV200D panel to the AC300 and B300 pairing, for more solar input than the two-panel set.
$3,036.80
BLUETTI
BLUETTI AC300+B300+2*PV200D | Home Battery Backup
Portable solar charging is the focus of this set, which pairs an AC300 and one B300 with two PV200D panels.
$2,717.60
BLUETTI
BLUETTI AC300+B300+PV350 | Home Battery Backup
A single PV350 panel joins the AC300 and B300 in this compact solar starter bundle.
$2,638.40