BLUETTI SolarX 4K
Rooftop-size solar for your BLUETTI system
The SolarX 4K is a wall-mounted MPPT solar charge controller. It takes a high-voltage solar array (150-500V) and steps it down to a safe 35-58V to charge a BLUETTI system at up to 4,000W. That suits a rooftop or ground-mount array at an off-grid cabin, a shed or a home backup setup.
Connected through the battery port with the P090D cable, it leaves the power station’s own solar inputs free for more panels. With an Apex 300 and B300K, BLUETTI quotes up to 6,400W of combined solar: 4,000W through the SolarX 4K plus 2,400W into the Apex 300. You can run up to three SolarX 4K units in larger systems, and monitor everything in the BLUETTI app.
Works with: BLUETTI lists the Apex 300, AC300 and AC500 (with an expansion battery), and the B300K, B300, B300S, B4810, B1210 and B1232 battery packs. It does not support other brands or lead-acid batteries.
Why buy BLUETTI from us
Your local BLUETTI specialists
Buy your BLUETTI gear from a local team that knows what fits what.
✓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.
✓Checked to fit your unit
Tell us which BLUETTI you have and we’ll confirm this fits 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.
(A-CG-SOLARX-US-0355)
- ✓Up to 4,000W charging output (35-58V, 80A max)
- ✓150-500V high-voltage solar input, 4,200W max
- ✓MPPT 120-450V, up to 99% efficient
- ✓Charges through the battery port (P090D) or XT60 lead, depending on version
- ✓Works with Apex 300, AC300, AC500, B300K, B300, B300S, B4810, B1210, B1232
- ✓Scale up to three units for about 12kW of solar
- ✓BLUETTI app monitoring and firmware updates (Bluetooth, Wi-Fi)
- ✓Arc fault (AFCI) terminal and three grounding terminals
- ✓Wall-mounted, 288.4 x 474.0 x 90.2 mm, 7.6kg
- ✓Air cooled, 52 dB, IP21 for indoor or sheltered mounting
Make it a complete setup
Pairs well with
The main power station the SolarX 4K is built around: 4,000W solar into an Apex 300 system.
B300K battery: add capacity and connect the SolarX 4K through it.
| SKU | A-CG-SOLARX-US-0355 |
| Brand | Bluetti |
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