Re: OnBoard Computer
Yes it turns the relay on and off when necessary. Newer versions of the OBC will turn off and sample the pack voltage more often than older models throughout the charge cycle.
Different OBCs perform the solenoid lockout features different ways. Some kill the negative to solenoid. Some kill the positive to controller.
It runs to the controller post because it's used as a junction block for all of the main negative wires. It helps keep the terminal of the battery from having so many wires on them. The reason it runs through the center of the OBC is because that's where the voltage sensor is located. Around the edges of that hole that's in it.
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