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Thank you for trusting us with your questions. I'm not completely sure I understand your question. Have you replaced the factory battery with an optima battery? Have you encountered some sort of failure?
OK, now I understand what you are asking. Have you checked with your dealer as to the availability of a Toyota True Start battery to install in your vehicle? This is generally a much less expensive option and they are available for many hybrid models. You DO want to use a battery that can be vented to the outside of the vehicle. In my opinion, an optima would not be a good choice.