Yaris won`t start..3rd Battery

[bgolash]

Hi
I am getting frustrated with my 2010 Yaris. Over a 1 ½ year I`ve gone thru 2 batteries. The second battery was pro-rated and got a replacement.
That died 5 months’ latter. So I took the Yaris to the dealership in a last ditch effort to solve the problem. The mechanic mentions that Goodyear
Battery is junk. So, the Toyota dealership puts in a new battery. That is good for 8 months then the car won`t start again. Cost $300.00

Then I hear from a friend that you`ll have problems if you don`t use the car regularly. So I make a concerted effort to use it all the time. Instead
of using my Toyota Tacoma. At that point, I`m running again for months and thought the problem was resolved.

Had a big snow storm. I used the truck to plow and the Yaris sat unused for two days. It was very cold…. dead again. This is getting to be aggravating.
So…I assume its an alternator or other electronic components that are the real cause. I assume the dealership tested the electrical components but now
am even uncertain they tested anything.

When u attempt to start all you hear is a buzz. Engine makes no sounds of starting.

Thanks