AGM 12v best option?

It is what came with the car and nothing else will properly fit and include a vent port.

 

did you troubleshoot it yet? Maybe Mechanic just want to make some quick bucks.

 

i put a toyota oem in mine 2 years ago. easy job, diy to save money. plenny of youtube vids.

$200. plus tax at the dealer. 8 year limited warranty. 2 100%, then prorated over 6

 

Yes it is worth it. Still experimenting with/using LiFePO4. Since you are using a mechanic I don't recommend it because of the wait to get it shipped....

 

This was the only battery under $200 before tax and after core refund in my area.
Autozon lent me a rachet set and wrenches to install it. It cost me $212 total.
https://www.autozone.com/batteries-starting-and-charging/battery/p/duralast-platinum-agm-battery-46b24r-agm-group-size-46b24r-410-cca/766475_0_0

 

accidental double post, how do I delete?

 

Can you share more detail, what are the two batteries you're price comparing? Is one of them through a Toyota dealership? FWIW, up here I can get the original Yuasa (AGM, proper posts/dimensions and vent port) mail order through SaskBattery, for $220 CDN, with only the federal tax (no provincial sales tax, saves 7%), no core charge levied, and free shipping.

They're not currently showing it on their website, and they are showing compatible Optima Yellow Top, but they have the former, and don't have the latter. Long story short, they're slow to update their website.

Canadian Tire (retail automotive outlet up here) DID have a compatible battery, that seems to have dried up. Woah, just checked: battery back in stock, but they're asking $251 now. Think SaskBattery for me. I've used them before and it went well, but still, I'd rather not do mail order, just in case.

 

Got mine from Batteries Plus for $200 with free installation. Duracell AGM same size as factory with vent, 4 year replacement warranty not a prorated one, and Batteries Plus's are everywhere.