RS485 to USB Serial Cable

RS485 to USB Serial Cable
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CAD $19.99 CAD $15.99


CA stock, usually ships in 1 to 3 business days.



The Renogy RS485 to USB Serial Cable connects your Renogy Smart Lithium Iron Phosphate Battery to a PC for firmware updates. With the help of the Renogy Firmware Update Tool, you can keep the firmware of your Smart Lithium Iron Phosphate Battery up to date, enabling smarter charge/discharge process management and state of charge estimation algorithms. Note:

  • Please download the Renogy Firmware Update Tool and the latest firmware for Renogy Smart Lithium Iron Phosphate Battery prior to the firmware updates. The Renogy Firmware Update Tool is only available for Windows operating systems.
  • DO NOT disconnect the serial cable or operate the PC when the firmware update is in progress.

If you have any questions regarding this product, please submit a case.

Key Features

  • Flat wire design helps to avoid tangles.
  • Low operating and USB suspended current.
  • Low USB bandwidth consumption.
  • USB 2.0 full speed compatible.

Package Includes

RS485 to USB Serial Cable

Renogy 2ft 4A/8A/10A Fuse Cables

1 x


Length: 5.9 ft / 1.8 m Conductor Material: Bare Copper
Outside Diameter: 0.10 x 0.38 inch / 2.6 x 8.8 mm Number of Conductors: 8
Weight: 1.8 oz / 51.5 g Insulation Material: Polyvinyl Chloride (PVC)
Connector: RJ45, USB-A Chip: FT232RL

Reviews Hide Reviews

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Ross Spratt on Dec 19th 2021

Worked exactly as described. Used to update firmware on 100Ah battery.

RS485 usb cable

Victor Perreault on Dec 8th 2021

Good price as usual from Renogy. Did my battery firmware update easy. Thanks