Hi.. I'm driving a 85 Toyota corolla whenever I start the car up I noticed that the check battery light stays on and it only goes off once I reverse the car pass 1000 rpm is this a problem and what can I do? Another thing my head lights are very Dimas the car is fully original is there anything I can do to brighten them up? And I did put a brand new regulator in the alternator recently coz I thought that was the problem but the light is still the problem.
weak alternator or battery, auto zones test both free on their load testers. Also test for bad ground wires on the charging and lighting systems