Battery draw?

Sweet. This is the answer to my problem. Heading out to pull fuses now.
(I guess you can also use an amp meter?)

If I leave any accessory on for a couple of minutes my battery will be drained and just start clicking. Battery is a optima yellow top and it has been tested and it is fine. Also had the altenator and starter tested and they said they were fine. But it doesnt make sense bc it seems like the altenator isnt charging back up the battery. The truck starts but it usually take two cranks to start. And if I leave my headlights or doors open for a few minutes my battery goes dead.

Battery terminals are clean and tight and brand new.

Does it have to be a test light? Or can I use my meter?

Issue: Battery will not hold a charge if vehicle is off for a short period of time, unless it is fully charged. It can then be turned off for a few hours or more. Over a period of time, it drains. The first sign of trouble was that I noticed that when brake is pressed, the dashboard battery gauge would drop a little. A few days later, the ABS warning light came on, then a few minutes later the battery completely died and had to be jumped (jumped easily). We have had the battery, alternator, and starter/cylinoid all checked. It was recommended that I have a diagnostic on the ABS system to see if something is draining the battery or trace the wiring (which can ultimately cost a bundle just to diagnose). Has anyone encountered this before? I don't want the repair shop to spend hours (and my $$) looking for the problem if I can guide them in the right direction. (It's happened to me before.) The vehicle is a 2000 Explorer with about 100,000 mi. I don't want to keep sinking tons of money in it.

1998 Ford Explorer 6 cyl Four Wheel Drive Automatic 114000 miles

I am having the same problem with my '98 Explorer.

The battery light illuminates while driving if the gas pedal is not engaged. The vehicle started after being dormant overnight, but during the brief period of driving, the veicle just shut down. Responded to jump, but only performed a few blocks before repeating the shut-down-while-driving process.

Also; the windows/locks not functioning, theft/ABS/airbag lights flashing, as well as intermittant beeping. Car also attempts to engage engine when key is out of ignition.

I have had the battery tested & it is presently at the repair shop.

I will post anything I find out as the mechanic lets me know.
-S