Made this lengthy post explaining everything and I lost it. So long story short, car was acting up for a few years due to a bad battery. Auto dimming mirrors and auto high beams were not working, and lousy gas mileage. I’ll update when I run through a full tank. But I’m expecting it to get better.

Here's a video after the install. Hope it helps!

 

What is the battery part number?

 

SC35DA the terminals are reversed from the factory one, but the cables are long enough to reach.

 

Thanks, but I can buy a Toyota/Lexus battery from the dealer for the same price as that battery you used. It is listing for around $235 to $270. The exact same price as OEM part number 2880028100!

 

Yeah by all means go OEM if you want a perfect fit. The optima has about 150 more cold cranking amps, but my Panasonic OEM battery lasted 9 years so can’t complain. I did get my optima for much cheaper than lost price but that’s because I have good relationship with parts vendors because of my job.

 

I just acquired SC35DA from Walmart. Arrived in 2 days. Local Lexus and Toyota dealers have the battery on back order. This Optima 12 volt yellow top battery requires a few minor modifications. Bend existing brackets, cut 1x4” lumber to support it and add 1/4” piece under top clamp. worked fine.. And saved $100. Highly recommend this option for DYI, but be prepared to work in the tiny space available while installing the heavy battery.