Dead battery fix?

[Mikecando]

After dead battery issue twice and wire harness and new battery replaced on 2022 hybrid
Was wondering if anyone has installed a second battery in tandem with a rocker type switch (like in a boat) to offset electrical problems. A jump box will only help once or twice before all systems die at 70 mph leaving you soiling yourself as you attempt to roll to a safe spot to stop

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[Tailender]

Your wiring harness was replaced? Sounds like you got another bad one or bad battery.

 

[Mikecando]

Your wiring harness was replaced? Sounds like you got another bad one or bad battery.

Yes new harness and battery. Back to a different dealer. Have air bag recall to get done as well

 

[Tailender]

I'm hoping my cable holds up but I've already bought new ends to crimp on if it does happen. 14k miles and so far so good.

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