Dead Battery

So my 2019 Tundra pro has 630 miles on it.
I've installed a K&N cold air intake and replaced the front turn signals with LED. I drove it for a week with no problems. Then I took it to the dealership to have upgraded speakers put in and a tonneau cover put on.
The next day I go out for work and my truck is dead as a doornail. Use my jump box to get it started drove to work and after work same thing. And I'm talking dead as if there's no battery in it. No lights come on or anything. Any idea of what might be draining it? I have verified lights are turned off doors are shut good I can't think of anything that would be causing a draw like that.

 

Take it back to dealer and have them check out your charging system and battery...that shouldn't happen.

 

My guess is they really drained the battery while they were installing the speakers. I'd take it to the dealer and get it replaced under warranty

 

I don't think Toyota Battery suck. I have a 2012 sienna and a 2013 taco with original battery (just traded Taco in on a white Trd Pro).

 

The dealership should be able to tell you where the drain is coming from they just need to do a current draw test. Or they could’ve easily pinch or screw on a wire when mounting diff speakers ... lots of possibility. Dont just let them replace the battery, find out whats causing the drain. Good luck

 

Thanks!! I have an appt there at 7am Monday.

 

I’ve bought two brand new vehicles with bad batteries. It happens.

 

Make sure it’s got a good connection at the terminals.

 

Ok. I didnt check that. I just assumed they did when they were working on it.

 

It turned out to be a bad (new) battery and the winch was drawing power from it somehow. They are replacing both. Free, under warranty of course.

 

Yeah, the dealership. I don't even have 1k on it yet.