Connecting a Vestwood battery

Protocol selection

For most Vestwoods batteries, select the protocol below on the SolarAssistant configuration page.

USB to Serial protocol selection

Please note that the Vestwoods VT48100e/A1 uses the Narada protocol as shown below.

Narada protocol selection

Cable

For most Vestwoods batteries, you need one Vestwood USB cable. Multiple batteries are interconnected with a standard straight cable.

Please note that for the Vestwoods VT48100e/A1 you will need a custom-crimped USB cable. Multiple batteries are interconnected with a standard straight cable. The cable needs to be crimped to match the pinout below:

Pin 1-
Pin 2-
Pin 3-
Pin 4RS485A
Pin 5-
Pin 6-
Pin 7RS485B
Pin 8-

Dip switch configuration

Start your dip switches with the master on address 2. The next battery should be address 3, then 4, etc. Note dip switches only take effect after battery restart.

Result

Once you press connect in SolarAssistant, you should see each pack show up under the battery section. If you make any cabling or dip switch changes, ensure you press disconnect and connect in SolarAssistant to rescan available packs.

Battery packsBattery charts