B500K Expansion Battery for AC200L/AC300

B500K Expansion Battery for AC200L / AC300 — Power That Doesn’t Quit

Your power station is great. Now make it unstoppable. The BLUETTI B500K bolts a massive 5,120Wh of clean LiFePO₄ energy onto your AC200L or AC300, turning a capable backup unit into a multi-day powerhouse. Outage? Off-grid weekend? Full RV season? The B500K keeps the lights on long after others run dry.

More Hours. More Devices. Less Worry.

That extra 5kWh isn’t just a bigger number it’s real, usable runtime. Enough to keep your fridge and freezer cold through a long blackout, run fans, lights, routers, laptops, and TVs deep into the night, fire up power tools on the job site, and carry your whole home backup well past the point where a standalone unit taps out. For perspective, BLUETTI’s own math puts a single 100W light bulb at roughly 43.8 hours of runtime on one B500K. That’s nearly two full days from one bulb. Bluetti Jamaica

Plug In. Power Up. Done.

No wiring headaches, no guesswork. Built specifically for the AC200L and AC300, the B500K connects with the included P090A cable and instantly multiplies your total storage. And when you’re ready for more, it scales with you expandable all the way up to 100kWh for partial, whole-home, or even small-business backup. BLUETTI

LiFePO₄ Built to Outlast the Years

This is energy you can trust for the long haul. Over 4,000 charge cycles and a lifespan of up to 10 years mean the B500K keeps delivering season after season. Stable temperature control, overvoltage and overload protection, and a third-generation wireless internal frame with an efficient cooling fan keep it cool, safe, and steady — even when you’re pushing it hard. BLUETTIBluetti Jamaica

Solar-Ready Energy Freedom

Pair the B500K with your AC200L or AC300 and let the sun do the work. High-efficiency solar charging makes it a natural fit for off-grid cabins, van and RV builds, solar home backup, and outdoor events or mobile work — anywhere you’d rather generate power than pay for it. Bluetti Jamaica

Works Beyond the Box

The B500K isn’t locked to a single setup. Pair it with BLUETTI ecosystem gear charge it via the SolarX 4K or Charger 2 and run your DC devices through the Hub D1 to use it independently of a main station. One battery, many ways to power your world. Bluetti Jamaica

Tough Where It Counts, Easy When You Move

Rugged enough for the job site, smart enough for the living room. Mount it to a wall or rack to save space, or lock it onto a Foldable Trolley when your power needs to travel. Home backup, RV and van life, long camping trips, remote work, full solar setups the B500K is at home in all of them.