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Also consider that if your car is really hitting 200°, every 15° above 77° (internal 12v temp) the 12v battery half life is halved. True for lead acid as well as AGM. Basically, heat is killing your battery.

All other brands have the exact same issues right now. Thread on Toyota Prius 12v battery failure: Battery Dead @ 6 Months???? : r/PriusPrime A small, integrated 20w solar panel going into the 12v battery on the roof would fix 80% of these issues IMO as it would keep the 12v battery topped up...

My wife has a Prius, we put in a generic 410 CCA AGM battery in 2015 and it is still doing its job. It's down to 50% SOH but all the battery needs to do is connect the relays, and you don't need a big one for that. I think the Maverick is a 99r/T4, but sometimes smaller batteries are less...

FWIW I let the key fob sit in a faraday pouch for several days, then went out to my locked hybrid XLT and walked all around it with the fob in my pocket and there was zero additional draw on the vehicle battery. This tells me the truck did not "wake up" just because the fob was jiggling around...

Anyone who knows doesn't even know. By that I mean, if they did know, there would be a hard release date.

Using your current charger will be fine. You can always put a voltmeter on it but your charger is probably set up for ~12.7v. That's perfectly fine for an AGM.

There is no recall for hybrid 12v batteries (yet).

At this point I'm mostly just wanting it to not dip below 12.2-12.3v while sitting for several days, as that will cause long term damage. I went down this path to see if there were any big drains occurring on it, at this point it doesn't look like there is. And sitting for 3-3.5 days and...

Agreed not a huge fan of the green but this combo looks great

I just attached mine onto the hood jumping points. No drilling required.

It's not how you drive then. It's the temp. It will be fine when it gets a little warmer, I promise. The Atkinson engine in these is very temperature sensitive. Like I said anything below 30* and you can kiss the efficiency goodbye. For 10 months out of the year they perform very well.

I’m pretty efficient and well versed in energy management. FWIW I make 350-400 mile round trip highway drives (real highway, not 55 mph highway) regularly. Same route etc. In summer I get around 35.5-36.5 calculated at the pump. I just ran one last month and got 27 down and 33 back, combined...

A heavy application of paste wax might help, and PPF film will for sure. That is it. Ceramic coatings are too thin and do nothing to protect from UV. They do help protect the clear coat (sort of) which has UV protection by default. Same goes for 303, often touted as a UV protectant - it does...

Yes repair mode on the Noco states to disconnect the battery from the vehicle first.

Sorry don't understand. I use the solar charger whenever the vehicle sits for >1 day. Normally parked at the airport for 3-4 days at a time or outside my house for 3-4 days at a time.

FWIW here is a 10 year old no-name brand AGM in our 2010 Prius. No issues with starting (yet).

Yes I would think 15v at 0.1 amp isn't nearly as harmful as 14v at 10 amps. I have a 20w solar charger on another vehicle, it typically indicates about 18v-20v going into the battery but very low amps.

Here are results of my test. It seems I have a 390CCA Ford battery although when I search that model # I can't find much on it.

It's in the trunk, easy to get to but a PITA to get out of it. You're saying the battery never really charged while it was being driven? If so there is definitely an issue with the software. Hopefully they can fix this. I understand they had to thread the needle between Lead Acid and AGM but...