Manufacturer and seller images. Configuration examples may include additional equipment.
Image source: BLUETTI SolarX 4K solar charge controller from the front, the second image in BLUETTI's US store data for this item (the first shows it with the adapter cable).No sellers found.
Printed as "120 VDC to 450 VDC" beside "MPPT Operating Voltage"; the startup voltage is printed as "150 VDC".
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, PV Input, MPPT Operating Voltage
Documented
Printed as "500 VDC" beside "Open-circuit Voltage" under PV Input (read from the rendered page); the troubleshooting table adds "Make sure the input voltage stays below 500 V".
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, PV Input, Open-circuit Voltage
Documented
Printed as "13 A" beside "Max. Input Current"; the maximum short-circuit current is printed as "17 A" (read from the rendered page).
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, PV Input, Max. Input Current
Documented
Printed as "About 7.6 kg (16.8 lbs)", an approximate figure.
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, General, Net Weight
Documented
Printed as "288.4 × 474.0 × 90.2 mm (11.35 × 18.66 × 3.55 in)".
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, General, Dimensions (L × W × H)
Calculated
Printed as "IP21" beside "IP Rating".
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, General, IP Rating
Documented
Printed as "CAN 2.0/Bluetooth/WiFi" beside "Connectivity"; the DC Output block lists the communication interface as "RJ45".
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, General, Connectivity
Documented
Printed as "-20°C to 55°C (-4°F to 131°F)" beside "Storage Temperature" (read from the rendered page).
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, General, Storage Temperature
Documented
2 specs not documented yet: rated capacity, usable capacityHelp fill in ›
Printed as "120 VDC to 450 VDC" beside "MPPT Operating Voltage"; the startup voltage is printed as "150 VDC".
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, PV Input, MPPT Operating Voltage
Documented
Printed as "500 VDC" beside "Open-circuit Voltage" under PV Input (read from the rendered page); the troubleshooting table adds "Make sure the input voltage stays below 500 V".
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, PV Input, Open-circuit Voltage
Documented
Printed as "13 A" beside "Max. Input Current"; the maximum short-circuit current is printed as "17 A" (read from the rendered page).
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, PV Input, Max. Input Current
Documented
Published claims and calculations are not independently tested lifetime output.
Printed as "About 7.6 kg (16.8 lbs)", an approximate figure.
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, General, Net Weight
Documented
Printed as "288.4 × 474.0 × 90.2 mm (11.35 × 18.66 × 3.55 in)".
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, General, Dimensions (L × W × H)
Calculated
Printed as "IP21" beside "IP Rating".
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, General, IP Rating
Documented
Printed as "CAN 2.0/Bluetooth/WiFi" beside "Connectivity"; the DC Output block lists the communication interface as "RJ45".
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, General, Connectivity
Documented
Printed as "-20°C to 55°C (-4°F to 131°F)" beside "Storage Temperature" (read from the rendered page).
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, General, Storage Temperature
Documented
The manual titles it a "Solar Charge Controller" and prints "Number of MPPT 1" and "MPPT Efficiency 99% Max." (read from the rendered page).
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, PV Input, Number of MPPT; General, MPPT Efficiency
Documented
Printed as "80 A" beside "Max. Output Current" under DC Output.
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, DC Output, Max. Output Current
Documented
Printed as "4,200 W" beside "Max. Input Power" under PV Input.
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, PV Input, Max. Input Power
Documented
Printed as "4,000 W" beside "Max. Output Power" under DC Output.
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, DC Output, Max. Output Power
Documented
Printed as "58 V" beside "Max. Output Voltage" and "35 V" beside "Min. Output Voltage" under DC Output (read from the rendered page).
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, DC Output, Max. Output Voltage and Min. Output Voltage
Documented
Printed as "-20°C to 55°C (-4°F to 131°F)" with "Power output decreases above 45°C (113°F)."; the storage row prints the same range.
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, General, Operating Temperature
Documented
Printed as "99% Max." beside "MPPT Efficiency".
Official user manual: BLUETTI SolarX 4K Solar Charge Controller User Manual V3.0 (PDF) Rev V3.0 · Checked · Earlier documentLocation: PDF page 17 (printed page 17), 7. Specifications, read from the rendered page, General, MPPT Efficiency
Documented
Published claims and calculations, not independent test results.
Archived copy captured on 2026-10-21.
Location: PDF page 17 (printed page 17), 7. Specifications
Retrieved
BLUETTI's user manual (V3.0), linked as the User Manual from BLUETTI's own US store page and captured on October 21, 2026. The 7. Specifications table on PDF page 17 was read from the rendered page before each label was paired with its value, because the text layer lists the labels of each block before their values. The manual also carries a French translation, which is not cited. Manufacturer claims, not independent tests.
Archived copy of a document published by BLUETTI. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what BLUETTI published. Original address: https://s4.bluettipower.com/bluetti/purchasePageBiz/2025/09/SolarX%C2%A04K%20User%20Manual%20US%20EN-FR-1756718552874-816c.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 30e15e1f876426760210a137791169bae81a72972f56400684bdd89dceb0e5bb
Archived copy captured on 2026-10-21.
Location: Product title; feature list; In the Box; User Manual link
Retrieved
BLUETTI's own US store page (bluettipower.com), captured on October 21, 2026; the content is whatever the address served on that date. Read for the product title, the In the Box list and the user manual it links. Manufacturer claims, not independent tests; the page carries no revision date.
Earlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.
Archived copy captured on 2026-10-21.
Location: Variant SKU; product images
Retrieved
The product data BLUETTI's own US store publishes for this product's address, captured on October 21, 2026: its variant SKU and the store's product images. Manufacturer data, not independent tests.
Archived copy captured on 2026-10-21.
Location: Variant SKU; product images
Retrieved
The product data BLUETTI's own US store publishes for this product's address, captured on October 21, 2026: its variant SKU and the store's product images. Manufacturer data, not independent tests.
Archived copy of a document published by BLUETTI. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what BLUETTI published. Original address: https://s4.bluettipower.com/bluetti/purchasePageBiz/2025/09/SolarX%C2%A04K%20User%20Manual%20US%20EN-FR-1756718552874-816c.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 30e15e1f876426760210a137791169bae81a72972f56400684bdd89dceb0e5bb
No warranty terms on file.
No sellers found.
No seller price history.
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Good for a medium sized roof system. Input up to 500 volts. I have 3. One is somewhat noisy. Main problem is every few weeks they can stop working. I had this problem with one so many times Bluetti replaced it. What will happen is you will get used to it running smooth, waking to it at 90%, then one day notice it is down to 60% and hasn't been charging or kicking on with sun at some point. Consequently, I have learned to check my 3 separate systems (each system Apex 300 and 6 b300k batteries) each morning. It rarely fails to start with the sun at this point. Fix is to disconnect and turn off everything then when switched on it will start. Remember, it takes 150 volts to start up, you have to wait. Overall, it seems reliable once it gets set up.
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