Connecting a JBD or Overkill Solar BMS

Protocol selection

On the SolarAssistant configuration page, select the protocol below.

You can select more than one JBD USB adapter:

Connections and components

You need a JBD USB adapter which are available from various stores. We do not sell these adapters. Examples where you can find them below:

JBD BMS UART adapter


If you are having trouble reading your batteries with SolarAssistant, we recommend testing your connection with the official windows software. If it's able to read your batteries, then SolarAssistant will also be able to read them.

The Overkill Solar support page also contain overall useful information:


JBD Monitoring SolarAssistant JBD Monitoring SolarAssistant