Expandable Bluetti systems and extra batteries are grouped here, though only one item is in stock right now: the Apex 300 at 2,764.8Wh and 3,840W, from $1,699. Expandable systems let you start with one unit and add battery capacity later as your needs grow. They suit homeowners planning backup power in stages, RV travelers, and anyone who wants room to scale. The main choice is how much capacity you want today versus later, so confirm which expansion batteries work with your chosen station. Because most of the line is limited, compare alternatives below or email us for guidance.
Also see: Bluetti Portable Power Stations
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Most Bluetti power stations are sealed boxes: the capacity you buy is the capacity you keep. The products in this collection are different. Each one accepts extra battery packs, so you can start with a station that covers a night and add storage later when a longer outage or a bigger trailer makes the case for it. That is what an expandable power station means in practice: the inverter stays, the watt-hours grow.
The collection lists 12 products from Bluetti, spanning the Apex 300, the AC200MAX + B230, the AC300 and AC500 with B300 or B300K packs, complete solar kits built on those pairs, and the EP900 + B500. Prices run from $1,699 for the Apex 300 base unit to $9,490 for the EP900 + B500. Only the Apex 300 is in stock at the time of writing.
| Product | Key numbers | Best for | Price from |
|---|---|---|---|
| Bluetti Apex 300 | 3,840W, 2,764.8Wh, modular | Home backup that grows in stages; in stock now | $1,699 |
| BLUETTI AC300 + B300K 3,000W (sold out) | 3,000W, 2,764.8Wh, 2,400W solar input, split-phase capable | Essentials plus a well pump | $1,999 |
| BLUETTI AC500 + B300K 5,000W (sold out) | 5,000W, 2,764.8Wh, 3,000W solar input | Workshops and larger appliance loads | $2,499 |
| BLUETTI EP900 + B500 9,000W (sold out) | 9,000W, 9,920Wh, 9,000W solar input, 48V | Whole-home backup with a large array | $9,490 |
Which is the best Bluetti power station for home backup right now? Of the models that ship today, the Apex 300 is the one to buy: 3,840W runs any household appliance and it accepts expansion batteries for longer outages. The AC500 + B300K is the higher-output choice when it returns.
Do Bluetti batteries add output as well as capacity? No. Adding a B300K or B500 increases watt-hours; the inverter's continuous rating stays the same. If you need more watts, move up a tier.
Can I buy the station now and the battery next year? Yes, that is the point of the modular design. The Apex 300 works as a standalone unit today and accepts extra packs whenever you add them.
Everything in stock ships free to the mainland US from brand partner warehouses, usually within a few business days, with 30-day returns. If you are unsure which tier of power station bluetti fits your loads, call us and we will size it with you.
