so this summer i got a used 2003 honda accord coupe v6. all was well then my battery kept dying. took it in and the battery needed replacing so got a new one. all seemed well, then left to europe for 10 days on vacation. come home today ,tried to start my car and nothing, brand new battery is dead. im pretty good about not leaving lights, stereo etc on so pretty concerned as to what this is and worried i bought a lemon. anyone had this problem and maybe know what it is?

 

Some electrical component is drawing power from the battery and draining it. There is a way to test for a current draw.

Here is a Youtube video on how to test:
Does the battery light turn on while driving?

I would stop by a parts store and have your alternator tested.

 

What type of volt meter is this?