Bluetti Expandable Power Stations & Extra Batteries

Bluetti Power Stations That Expand: Modular Units and the Batteries That Grow Them

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.

How to choose a Bluetti expandable power station

• Output tier. The AC200MAX + B230 delivers 2,200W; the AC300 + B300K delivers 3,000W; the Apex 300 delivers 3,840W; the AC500 + B300K delivers 5,000W; the EP900 + B500 delivers 9,000W. Pick the tier by your heaviest appliance, because output does not grow when you add batteries.
• Starting capacity. The Bluetti Apex 300 Portable Power Station starts at 2,764.8Wh, the same as the AC300 + B300K and AC500 + B300K bundles; the AC300 + B300 starts at 3,072Wh and the EP900 + B500 at 9,920Wh.
• Solar ceiling. The AC200MAX accepts 900W of solar, the AC300 2,400W, the AC500 3,000W and the EP900 9,000W. If you plan on a large ground array to refill many batteries, the ceiling matters as much as the capacity.
• Panels included or not. The complete kits bundle 3 x 200W folding panels, 6 x 200W rigid panels or 8 x 335W rigid panels with the station and battery, so nothing needs matching. The bare station-plus-battery listings assume you already own panels or will buy them separately.

Popular picks in this collection

Sizing tips

• Size the inverter for today and the battery for tomorrow. Run the Solar Kit Calculator with your appliance list and ZIP code; buy the output tier it recommends and add battery packs as your needs grow.
• Count usable hours, not just Wh. A fridge, lights and router at roughly 3kWh a day empty a 2,764.8Wh pack overnight; a second pack gets you to the next afternoon.
• Bring enough panel to refill what you added. Doubling batteries on an AC200MAX with its 900W cap means a slower refill than doubling on an AC300 with 2,400W.
• Check the compatibility list on the pack. In this collection the B300 and B300K ship with the AC300 and AC500, the B230 with the AC200MAX and the B500 with the EP900; confirm before mixing a pack with a different station.
• Leave floor space beside the station. Expansion packs sit alongside the main unit and connect with short cables.

Frequently asked questions

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.