1986 Toyota Van Battery draining charge

battery not staying charged,have to take out and recharge after a couple of days,depending on use.where is the short that is draining my battery?

The emergency brake light,radiator light,oil light and battery charge light stays on even with nothing wrong.When using headlights,wipers,stereo it seems to drain battery faster.The battery does not get recharged when van is on.Alternator has been tested and is not faulty.Would appreciate any help you can give.

Thank You

Paul