BLUETTI B500K 5,120Wh Expansion Battery for AC300, AC200L, Apex 300

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DETAILS

Overview

5,120Wh more for your BLUETTI system

The B500K adds 5,120Wh of LiFePO₄ storage to a BLUETTI power station. It works with the AC300, AC200L, AC200MAX, AC500 and Apex 300, and it ships with the P090A long cable.

It charges and discharges through the connected power station, so solar, mains, car and generator charging all flow through to it. BLUETTI rates the cells for 4,000+ cycles to 80%, or up to 10 years of use.

Mount it to a wall or rack using its mounting holes, or sit it on the Foldable Trolley 2 to move it around.

5,120Wh

LiFePO₄ capacity

4,000+

Cycles to 80%

45 kg

Weight

520 x 327 x 308.5

Mm (L x W x D)

4 years

Warranty

Why buy BLUETTI from us

Your local BLUETTI specialists

Adding capacity is a big purchase. Buy it from a local team that will still be here to help long after the sale.

✓A real shop in Sydney

We’re a bricks and mortar store, not a faceless online warehouse. You can visit us, or pick up your order from our Sydney shop.

✓Talk to a real person in Australia

Call or message our Sydney team (details on our contact page). You’ll speak to someone local who knows BLUETTI, not an overseas call centre.

✓Shipped Australia-wide

We send BLUETTI orders to every state and territory, from the city to the bush.

✓The right battery and cable

We’ll confirm the BLUETTI B500K suits your power station and that you have the right connection cable before it ships.

✓Local support after you buy

Questions about setting it up, charging or getting the most from your BLUETTI? Our team here in Australia is happy to help.

✓The whole setup in one place

We stock the BLUETTI power stations, panels, chargers, cables and mounting trays that work together, so you can get everything from one store.

Ask us a questionMake us your first stop for BLUETTI.

Which units it suits

One battery, five BLUETTI models

✓AC300: up to 4 B500K via the P090A cable (20,480Wh). Mix with B300 and B300S.
✓AC200L: up to 2 B500K via the P090A cable (12,288Wh). Mix with B300 and B300K.
✓AC200MAX: up to 2 batteries in total via the P090A cable. Mix with B300K, B300, B230 and B210.
✓AC500: up to 6 batteries. Needs the P090D to P150D cable (sold separately).
✓Apex 300: up to 6 batteries. The included P090A long cable works; the CA90 short cable is for a neat stack.

The AC200L and the AC200PL (AC200P L) are different models. BLUETTI does not list the AC200PL or AC200P for the B500K.

BLUETTI AC300 with one B500K (5,120Wh), B500K + B300K (7,884.8Wh) and four B500K (20,480Wh)

Built to last

BLUETTI B500K LiFePO4 cells, 4,000+ cycles, 3rd-gen wireless design

LiFePO₄ cells, wireless internal frame

The B500K uses LiFePO₄ cells rated for 4,000+ cycles to 80% of original capacity. BLUETTI’s third-gen wireless internal design and a cooling fan keep it stable and help it handle knocks and bumps.

✓Keeps a small reserve so it never fully drains, which protects the cells
✓Discharges from -20°C to 40°C; charges from 0°C to 40°C
✓Monitor each battery in the BLUETTI app through the power station

Fixed or movable

Wall, rack or trolley

Secure the B500K to a wall or rack in the house or RV using its mounting holes. Or clamp it to the BLUETTI Foldable Trolley 2 (sold separately) with an Apex 300 on top for a mobile setup.

It can also work without a power station inside the BLUETTI ecosystem: charge it with the SolarX 4K or Charger 2 and run DC gear through the Hub D1.

BLUETTI B500K under an Apex 300 on the Foldable Trolley 2, 520 x 327 x 308.5 mm

Frequently asked questions

BLUETTI B500K 5,120Wh battery on grass between a caravan and a house

Which BLUETTI power stations work with the B500K?

The AC300, AC200L, AC200MAX, AC500 and Apex 300. The AC500 needs the P090D to P150D cable, sold separately.

How many can I connect?

Up to 4 on an AC300, 2 on an AC200L or AC200MAX, and 6 on an AC500 or Apex 300. On the Apex 300 BLUETTI suggests the CA90 short cable for stacks and the P090A long cable for packs set up separately.

Can I use it on its own as a power bank or UPS?

No. The B500K has no power bank mode and can’t be used alone as a UPS. It can run DC gear through the BLUETTI Hub D1, and charge from the SolarX 4K or Charger 2.

How long will it run my gear?

BLUETTI’s formula is capacity x 90% depth of discharge x 90% efficiency ÷ (load + 3W self consumption). For a 100W load that’s about 40.3 hours. Real results vary.

Can I use it in the cold?

It can power devices down to -20°C, but it can’t be recharged below 0°C. Charge it between 0°C and 40°C.

Is it waterproof?

No. Keep it out of humid or wet places.

Still got a question? Our Sydney team is happy to help. Get in touch and you’ll talk to a real person in Australia.

Features

✓5,120Wh LiFePO₄ capacity
✓4,000+ cycles to 80%, up to 10 years of use
✓Works with AC300, AC200L, AC200MAX, AC500 and Apex 300
✓P090A long cable included
✓Mix with B300K, B300, B300S (model dependent)

✓BLUETTI says systems scale up to 100 kWh
✓2 × expansion ports, 58.4VDC max., 90A max.
✓Third-gen wireless internal frame and cooling fan
✓Wall, rack or trolley mounting
✓4-year warranty

Make it a complete setup

Pairs well with

BLUETTI Apex 300 Versatile Power Station | 3,840W 2,764.8Wh

Takes up to six B500K batteries: 3,840W output and 2,764.8Wh built in.

View product

12 Volt Direct Battery Tray Mount To For Bluetti Apex 300 & B300K / B500K Expansion Batteries

Our tray mount sized for the Apex 300 and B300K / B500K, for vans, utes and caravans.

View product

Foldable Trolley 2 for Apex 300 | 2-in-1 Heavy-Duty Cart

BLUETTI’s 2-in-1 trolley: the B500K clamps on to move it around the house or site.

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Bluetti Hub D1 DC Power Hub For Apex 300 Powerstation

Adds 12V, USB and Anderson outlets, and lets the B500K run DC gear.

View product

Bluetti Charger 2 1200W Alternator & Solar Fast Charger Kit

Alternator and solar charger that BLUETTI says can charge the B500K directly.

View product

Specifications

Battery

Capacity	5,120Wh
Chemistry	LiFePO₄ (lithium iron phosphate)
Cycle life	4,000+ cycles to 80% original capacity

Input / Output

Expansion ports	2 × 58.4VDC max., 90A max.
Charging current	65A max.
Discharging current	70A max.
Charging	Through a connected BLUETTI power station, SolarX 4K or Charger 2

General

Compatibility	AC200L, AC200MAX, AC300, AC500, Apex 300, B300K
Cable included	P090A long cable
Weight	45 kg
Dimensions (L x W x D)	520 x 327 x 308.5 mm
Charging temperature	0°C to 40°C
Discharging temperature	-20°C to 40°C
Storage temperature	Up to 1 month: -20°C to 40°C; up to 6 months: -20°C to 25°C
Working humidity	5% to 95% RH
Waterproof	No
Warranty	4 years

What's Included

1 x BLUETTI B500K expansion battery
1 x Battery expansion cable (P090A long cable)
1 x User manual

Product Details

SKU	BE-B500K
Model #	B-B500K
Brand	Bluetti
Capacity	5,120Wh
Battery chemistry	LiFePO4
Compatible with	AC300, AC200L, AC200MAX, AC500, Apex 300
Cable included	P090A long cable
Shipping Weight	52.0000kg
Shipping Width	0.500m
Shipping Height	0.700m
Shipping Length	0.500m
Shipping Cubic	0.175000000m3