Battery drain after New coils, wires and spark plugs

I had a P0304 code this past Friday night and decided it was time for some TLC. I replaced the coils, spark plug wires and plugs. I used Denso for the plugs and coils and NGK for the wires. Completed the install yesterday and went out this morning to a dead battery. Battery was replaced a few months ago and I have never had an issue like this before in the 7 years I have owned the vehicle.

1996 4runner SR5 V6 4x4 Auto....250k miles.

 

Well...I was mistaken. The battery was 2yrs old and tested bad at the local auto parts store. Replaced the battery and hopefully tomorrow morning when I go to start it up, all is well.