1990 toyota mr2.two battery lights on the dash board.

What is your question?

i have a 1990 toyota mr2.ive notice two battery lights on the dash a red and orange.when i start the car the orange light stays on.the battery voltage indicator needle shows a bit over the half way mark however everythings working ok the dash lights,head & indicator lights all work fine.any idea what this colud be id greatly appreciate your feedback.thanks in advance.

What makes this problem better or worse?

the car still runs fine for now.

How long has your 1991 Toyota MR2 had this problem?

4 months.