[eoscop]

I have a 2008 Focus and for the 2nd time in 2 months my battery has suddenly gone dead. Both times it has happened it has died with in 2 hours of the last time I drove it, the battery has never appeared weak, and the car has never been hard to start. The first time it happened the dash lights flashed, and then went blank. I charged the battery and it started right up and no problems until about 2 months later. The 2nd time it happened, the dash lights would stay on, and you could hear a clicking/buzzing sound when I turned the key. Does this sound like a battery issue? Ignition switch issue? Starter? It is the original battery, but like I stated earlier, it never appeared to slowly die, just suddenly dead. Any help would be appreciated.

 

[freemind]

Do you know what the alternator is putting out voltage wise?

Many auto parts stores do free electrical testing.

 

[eoscop]

I'm not sure on the altinator, I'll definitely have it checked. I didn't think it would be that because the battery stayed charged for 2 months after the last time it happened, and no check engine light came on.

 

[amc49]

You're flogging a dead horse if the battery is the original...........virtually no battery goes dead slowly anymore, they have way too much required load and often go all at once.

Change the battery.

 

[eoscop]

I guess it's time for a new battery, thanks for the help!

 

[sailor]

"Sudden Dead" can be from internal short in a battery (common when old) & when bad enough the car won't work even with a jump start.

Getting a couple extra months is a bonus if that happened, def. time for new.

 

[amc49]

And oddly enough the problem can come and go. Regardless, the battery is old enough nothing to be gained by flogging it further. If you want dependable you want a KNOWN good battery not an old one. Old is bad there.

 

[eoscop]

Battery

I went and had it checked, sure enough it was bad. Went to the dealer and got a new one, all good now, thanks for all the advice!