Well, my battery light was coming on and then my battery ran completely down. l charged up my battery and it ran ok for a few days and then the battery ran down again. So l went to autozone and got my battery checked and my alternator and the alternator checked out fine. The battery was running so low that they could not check it. Then l got my battery charged professionally at Autozone. Then they tested it and they said it tested fine. It ran down again and they tested again and they said that the voltage was low but it was not enough to say that it was a really bad. Then l put a a different battery in it and it started to drain it as well. And when l hook up the battery terminals l get spark from it.and also l can hear one of my relays clicking. l do not know what it wrong with it. l have had my battery and my alternator checked and there fine. What else could it be???
When l bought it...it had 2 10s and a 900 watt amp in it.

you could have a short some where in your car. did you recently put a system in your car?. Have you had any work done to your car recently?. l would check all the connectors again and make shore nothing is touching.

First, never use the term ''professionally'' in the same sentence as Autozone. LMAO :) If u had a battery light on while the car was running u most certainly have a charging issue. If u put a new battery in, fully charged, & then it is completely discharged either it is not being recharged by the alternator or u have parasitic draw. It is normal for a little spark when hooking up the wires. especially if u do it in the wrong order (pos first, neg second is correct), but u also say u hear a relay clicking. If the ignition is off u should only hear minor noises, not a relay click. It sounds like u have a draw. You need to hook an ammeter up in series between the negative cable & the the negative terminal. If u do not FULLY understand electricity have someone else do this because it is easy to blow things up. Mitsu dealers have a very expensive battery / charging system tester & will be able to tell u for sure which of the problems you're having. ask for a MIdtronics test, good luck.

you could have a hot wire that is drawing current non stop, and you said it had a system you should check for crossed wires and jacked up conections,some poeple wire things half ass.