Battery light stays on new battery and alt - 1998 Chrysler Sebring

Batt probly not chargn cause main wire in back of alt is wornout. Alternator tho sounds bad..it will drain a battery quik.Disconnect batt ovenite to confirm

is the engine running at 800 rpm or more.
if engine RPM is way low the Alternator will die out.
trans light , where is that? name it. exactly
lets focus first on the engine, and RPM
does the dash have a tachmeter, ? yes, then use that.
we keep a hand tachometer (optical , ready for no tach cars)
RPM is everything.... maxwells laws. and such.
1: rpm 800 or more all the time. rule 1, do not skip this.
2: belt to ALT not slipping'
3: battery good. terminals on battery cables tight both ends and
NOT PACKED in green corrosion, .
4: alternator case is grounded good.
5: The connection and ALT, all good.
6: you key on, and the dash charge light must turn on,
if not fix that now, on old cars, the dash light , causes the ALT to self excite, if the lamp burns out the alternator boots up DEAD.
or fails every other car starts. (does)
7: new alt is the wrong alt. zillion wrong ones, only 1 works.

I would make sure the alternator is ok should be reading 14.4 volts at 1500r.p.m.'s make sure the drive belt to the alt. is tight

The alt should charge at around fourteen volls , any ways, yogi need to put another battery. A weak alt will kill a good bat.and vise versa

if my memory is rightthe car has a sencer under the battery that gets dirty and turns the light on.[just a starting point]

Check the drive belt tension and wiring connection at the alternator and at the battery. Check for a blown fuse in the fuse block . -hope this helps

HI there
Try checking a few things first like jump start again and then take off the earth lead only{black} and let it run for 6 minute on idle then turn on the head lights main beam ,,if the engine dies in about 2 minutes then the Alternator isent working full power as it should be pumping out 13.5 volts min and the lights should be bright and stay on... if not you have a Alt problem still like a bad feed to alternator or a bad connection on the battery post or a loose wire from engine to body {earth wire } also check out the relay to Alt ..
Let me know how you get on . RON

Check all connections to alt. and battery to make sure they are clean and tight, as it sounds like a loose or dirty connection someplace. Possibly something not tightened completely after battery and alt. replaced? (just enough to get the annoying light to go on occasionally)

is the alt producing full power.check all grounds make sure there good

You have a problem in the regulator. (or field wire is grounded somewhere) Check which alt you have (some have external regulators) If internal, and field is not grounded, then alt has to come out (defective)