Has the well known "battery drainage" on the SC been discovered?
07-01-13, 10:28 PM
#16
Keeper of the light
iTrader: (17)
Well to cut to the chase, as an owner of a chain of car audio stores and 20 yrs experience as an electronics installer and troubleshooter I could find the drain if the car were in front of me, given you think there is another drain somewhere. If it is there I could find it, but the advice I can offer for DIY'ing it is to do it properly by hooking an ammeter to it and puling fuses until the drain goes away. Most decent voltmeters like a Fluke 87iii will read amps up to 5 amps or so and that's all you need if the car is off. You shouldn't be drawing anywhere near 1 amp even if the car has sat for 5 minutes and the system is in sleep mode.
07-02-13, 08:10 AM
#17
my 95 doesn't have that switch for the keyless entry under the dash but my 92 had it.
my 95 does have the auto headlights though, and I have been keeping them off it does seem to help oddly, that and I turn off the steering wheel from moving in/out when the car is parked for a while.
I still stand by the quick disconnect circuit breaker, my battery tender, and if all else fails my big battery charger.
All 3 items are just basically for the SC.. lol.
my 95 does have the auto headlights though, and I have been keeping them off it does seem to help oddly, that and I turn off the steering wheel from moving in/out when the car is parked for a while.
I still stand by the quick disconnect circuit breaker, my battery tender, and if all else fails my big battery charger.
All 3 items are just basically for the SC.. lol.
07-05-13, 11:04 PM
#24
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I've only had my SC400 for a few weeks now (this is my first post here btw) and previous owner did report a problem with battery drain. Revamped alternator has seemingly fixed the problem though I've not yet left the vehicle unattended for weeks on end.
My other car is an Audi A4 and I do know that until I turned off the alarm the battery would go flat over a period of some weeks. Now I simply disconnect the battery positive before leaving. Works for me though my partner's old Golf with alarm, never had the same problem.
My other car is an Audi A4 and I do know that until I turned off the alarm the battery would go flat over a period of some weeks. Now I simply disconnect the battery positive before leaving. Works for me though my partner's old Golf with alarm, never had the same problem.
07-06-13, 11:52 AM
#25
I got a 12 volt circuit breaker for my battery. Wasn't very expensive. We'll see if it works in weeks to come. Requires to be plugged into the negative side, output on the positive side, with 2 grounds. I hope this works...and keep in mind like TealSC400 and Ali mentioned awhile back, this will reset all settings.
07-06-13, 11:23 PM
#26
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Which makes me think about the diode packs. Are they an often failure in the SC? We might never know...
I got a 12 volt circuit breaker for my battery. Wasn't very expensive. We'll see if it works in weeks to come. Requires to be plugged into the negative side, output on the positive side, with 2 grounds. I hope this works...and keep in mind like TealSC400 and Ali mentioned awhile back, this will reset all settings.
I got a 12 volt circuit breaker for my battery. Wasn't very expensive. We'll see if it works in weeks to come. Requires to be plugged into the negative side, output on the positive side, with 2 grounds. I hope this works...and keep in mind like TealSC400 and Ali mentioned awhile back, this will reset all settings.
I am thinking circuit breaker is the way to go. We do a lot of sailing and often leave our vehicles for month or two at a time. Unfortunately we live in a block of apartments with no power outlets in the garage so a form of battery charger is not really an option.
07-10-13, 07:19 AM
#27
I left my 93 SC4 sitting for a few weeks and this happened to me. Since the battery was a starting battery, not a deep cycle or dual purpose, and got drained all the way, it was ruined. It was a great excuse to get an Optima Yellow Top though. But, I didn't really want to spend $250 on a battery!!! I'm pretty sure it can handle whatever audio or other power loads I can throw at it though.
07-10-13, 11:16 AM
#29
Driver School Candidate
juiced
had the issue but it was probably due to my upgraded led lamps and a 2000 watt stereo. had a killswitch but found it annoying so after my battery died for a second time...i went all-out cuz i dont f- around. Ordered a custom monster high output alternator and dropped $500 on a XS power battery and got rid of the killswitch. Only negative is the added weight similar to driving around with a midget under the hood but hey, my car could probably power my house if need be.
