BLUETTI AC500+B300K | 5KW Home Battery System Plug&Play
The BLUETTI AC500+B300K is a modular home battery system built for Australian properties that need power on tap when the grid goes down, whether that's a farmhouse at the end of the line, a shed workshop, or a weekender that's off the grid altogether. It pairs the AC500 inverter hub with a BLUETTI B300K expansion battery, and the whole system is designed to scale as your needs grow. Plug it into the wall, tie it into your switchboard, or add batteries over time — it works the same way either way.
Fast, Flexible Charging:
AC charging tops out at 3,000W with a single B300K, and 5,000W once you add a second battery or more.
On top of that, solar input runs up to 3,000W
, and
combining AC and solar gets you a total input of 8,000W
— useful if you're racing a storm front and want the batteries full before the power drops out. For the ute or the tractor,
the AC500 also takes a 12V/24V car charge through the cigarette lighter port, with a maximum input current of 8.2A
.
Power for the Whole Household:
The AC500's inverter delivers 5,000W continuous with a 10,000W surge rating
, which is enough headroom to start air conditioners, power tools and large fridges without the compressor kick tripping the system. That surge capacity matters on a property where bore pumps, welders and workshop gear all draw a hard start-up spike well above their running wattage.
Modular Battery Expansion:
The AC500 is 100% modular and accepts up to six B300K expansion battery packs at 2,764.8Wh each, for an overall capacity of 16,588.8Wh
. That means you can start with one or two batteries and add more down the track as your budget or your outage risk changes, without replacing the inverter.
The AC500 supports up to six B300K packs in total
, so a full build-out covers a household's basic needs for days, not hours.
Uninterrupted Outage Protection: Tied into your home's switchboard, the AC500+B300K system stands in the moment the grid drops.
The inverter's UPS function switches in under 20 milliseconds
, which is fast enough that sensitive electronics, freezers and medical devices don't notice the changeover. It's the difference between a genuine backup system and a generator you have to run out and start.
App Control:
The BLUETTI app gives you real-time input and output data, tailored power consumption settings and firmware upgrades
, all from your phone over WiFi or Bluetooth. Check state of charge from the kitchen, adjust charging priorities before a forecast outage, or keep the firmware current without going near the unit itself.
What's Included
- BLUETTI AC500 Power Station
- BLUETTI B300K Expansion Battery (2,764.8Wh)
- AC Charging Cable
- DC Input Cable
- Car Charging Cable
- P090A Battery Expansion Cable
- P090D to P150D Battery Expansion Cable
- User Manual
| Specification |
Details |
| Model |
BLUETTI AC500 + B300K |
| Battery Capacity (per B300K) |
2,764.8Wh |
| Max Expandable Capacity |
16,588.8Wh (6 × B300K) |
| Cell Chemistry |
LiFePO4 |
| Cycle Life |
4,000+ cycles to 80% |
| Rated Output Power |
5,000W |
| Surge Power |
10,000W |
| Output Waveform |
Pure sine wave |
| Output Voltage (AU) |
240V AC |
| Output Frequency |
47-63Hz |
| UPS Switching Time |
≤20ms |
| AC Charging Input |
3,000W Max (1 × B300K), 5,000W Max (2+ B300K) |
| Solar (PV) Input |
3,000W Max (2 × 1,500W, MPPT 12V-150V) |
| Multi-Charge (AC + Solar) Input |
8,000W Max |
| Car Charging |
12V/24V, 8.2A Max input current |
| USB-A Ports |
2 × QC3.0, 18W Max each |
| USB-C Ports |
2 × PD3.0, 100W Max each |
| App Control |
WiFi & Bluetooth (BLUETTI App) |
| AC500 Weight |
30kg |
| AC500 Dimensions (L×W×H) |
520 × 325 × 358mm |
| B300K Weight |
29.5kg |
| B300K Max Charging Current |
60A |
| B300K Max Discharging Current |
70A |
| Battery Charging Temperature |
0°C to 40°C |
| Battery Discharging Temperature |
-20°C to 40°C |
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