BLUETTI B300K for Apex 300
Double your Apex 300 in one stack
The B300K adds 2,764.8Wh of LiFePO₄ storage to a BLUETTI Apex 300. This is the Apex 300 version: it comes with the CA90 short cable (270 mm) so the Apex 300 sits straight on top of the battery.
Each Apex 300 takes up to six B300Ks for 19,353.6Wh. Stack three high, then start a second stack. The B300K charges through the Apex 300, from mains, solar, car or generator, and both units update firmware together in about 10 minutes.
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 B300K 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.
(BE-B300K2)
- ✓2,764.8Wh LiFePO₄ capacity (51.2V, 54Ah)
- ✓6,000+ cycles to 80% of original capacity
- ✓Apex 300 version with CA90 short cable (270 mm) included
- ✓Up to 6 per Apex 300 for 19,353.6Wh
- ✓Mix with B500K, B300S or B300 batteries
- ✓Same footprint as the Apex 300 for a neat stack
- ✓2 × expansion ports, 58.4VDC max., 90A max.
- ✓12W USB-A port for phones and small devices
- ✓AI battery management, aluminium case, cooling fan
- ✓4-year warranty
Make it a complete setup
Pairs well with
The power station this battery is made for: 3,840W AC output and 2,764.8Wh built in.
Our tray mount sized for the Apex 300 and B300K / B500K batteries, for vans, utes and caravans.
Adds 12V, USB and 50A Anderson outlets to an Apex 300 system.
| SKU | BE-B300K2 |
| Brand | Bluetti |
| Shipping Weight | 34.5000kg |
| Shipping Width | 0.700m |
| Shipping Height | 0.390m |
| Shipping Length | 0.500m |
| Shipping Cubic | 0.136500000m3 |
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