It's a shaker 500, I don't know how to check the parasitic draw. What do I need to find that out? Do I need to take it somewhere or is there a tool I could find somewhere? Thanks for the help guys!
before it took about 3-4 days, but now it's a little over a day. I put in a Kragen battery, the battery size is not too easy to find around here. Have the shaker's been known to do that?
not too long, 2 weekends ago i left Friday night and got back Monday night and the battery was toast, then this last weekend i garaged it Sat. night, didn't use it Sunday, battery was toast Monday morning. What's a battery tender?
Parasitic draw is the current that the computers draw when the car has been shut off for at least 40 minutes. It is typically 20-30 milliamperes, but up to 50 ma is considered okay. It is somewhat of an involved process if you are not familiar with how to do it. My dealer did it for me at no cost.
You should shut the Shaker system off by using the on-off switch on the radio and not rely on opening the door to shut it off. Sometimes the subwoofers keep drawing current if you don't use the on-off switch.
A battery tender is a device that you plug into 110 volts AC and hook up to the battery. It keeps a charged battery from discharging. It is not designed to jump start a car or to charge a discharged battery. It should have circuitry in it so that it does not overcharge the battery.