Strange constant beeping on 2001 challenger 2000, optimax 200

[mmclean]

My challenger won't start, and beeps on every revolution, louder and louder in sets of two beeps. "Beep-beep, beep-beep, beep-beep".
I made a video of it, if anyone has a suggestion as to what it is:

The beep doesn't seem to be oil related, or water-separator related. I dumped the water separator contents just to be sure, and no luck starting.

 

[Sportster-2001-951C-Stock]

Weak/defective Battery?

 

[mmclean]

Yup, that seems to be it. It's a pretty new battery, but it doesn't seem to be holding a charge. Thanks so much.

 

[Sportster-2001-951C-Stock]

No surprise, have seen my fair share of new replacement batteries fail right away. Occasionally the engine electrical/charging system is the cause of a low battery but not near as often as battery failure.

If you have a stereo, these sometimes can drain the battery in a few days if left connected to the battery. Turning off your battery switch can help isolate this possibility.

 

[Tim75]

Agreed.. sounds like low battery. The computer needs a certain voltage to function.
You should check battery voltage when cranking. I think you will be surprised how low it goes.

 

[yacht1255]

Thanks everyone for the advice