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<blockquote data-quote="VMF" data-source="post: 2693833" data-attributes="member: 574364">hey guys, i got a weird problem with my alpine 9855 head unit.i noticed that if the car is not being used for around a week, the battery drains completely. my friend got the same problem with 9853 head unit and he said he got this problem only after he installed the head unit. so now my battery is dead again so i decided to do some measurements and here are the results.i checked the resistance of the car with the head unit unplugged from the car&#039;s electrical system. it was 22.1 kohms then while checking the resistance i plugged the headunit back into the system, the resistance spiked to around 48 and then started to drop steadily all the way to 5kohm, after that i just unplugged it again and the resistance came back to the 22.1 kohms. it looks like the head unit draws a lot of power from the system even when the ignition is off. i wonder if its normal for these types of head units to kill the battery and if any1 else experienced it and if there any ways to fix this.Thanx in advance</blockquote>

[QUOTE="VMF, post: 2693833, member: 574364"] hey guys, i got a weird problem with my alpine 9855 head unit. i noticed that if the car is not being used for around a week, the battery drains completely. my friend got the same problem with 9853 head unit and he said he got this problem only after he installed the head unit. so now my battery is dead again so i decided to do some measurements and here are the results. i checked the resistance of the car with the head unit unplugged from the car's electrical system. it was 22.1 kohms then while checking the resistance i plugged the headunit back into the system, the resistance spiked to around 48 and then started to drop steadily all the way to 5kohm, after that i just unplugged it again and the resistance came back to the 22.1 kohms. it looks like the head unit draws a lot of power from the system even when the ignition is off. i wonder if its normal for these types of head units to kill the battery and if any1 else experienced it and if there any ways to fix this. Thanx in advance [/QUOTE]

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