SL/R231: Electrical drain Please help!
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Junior Member
Joined: Jul 2014
Posts: 24
Likes: 4
2013 SL550; Lexus RX 330
Electrical drain Please help!
I just purchased a 2013 SL 550 with only 30,000 kms. Drove it back from Montreal a few weeks ago and loved it! Awesome car until...
Last week I took it to a garage that has done a lot of work for me and had Blackview dash cams installed. When I tried to start the car again 24 hours later the battery was completely dead, the horn would not even honk, no dash lights, nothing. I disconnected the cameras (not at the fuse box but disconnecting the jack from the camera), took it back to the garage where the battery was implicated as the cause. They replaced the battery, I drove home, and 24 hours later the battery is once again stone cold dead.
I'm having it towed back to the garage, where they are scratching their heads, tonight and wonder if anyone has any thoughts?
Last week I took it to a garage that has done a lot of work for me and had Blackview dash cams installed. When I tried to start the car again 24 hours later the battery was completely dead, the horn would not even honk, no dash lights, nothing. I disconnected the cameras (not at the fuse box but disconnecting the jack from the camera), took it back to the garage where the battery was implicated as the cause. They replaced the battery, I drove home, and 24 hours later the battery is once again stone cold dead.
I'm having it towed back to the garage, where they are scratching their heads, tonight and wonder if anyone has any thoughts?
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Joined: Mar 2016
Posts: 75
Likes: 15
'13 SL550
I just purchased a 2013 SL 550 with only 30,000 kms. Drove it back from Montreal a few weeks ago and loved it! Awesome car until...
Last week I took it to a garage that has done a lot of work for me and had Blackview dash cams installed. When I tried to start the car again 24 hours later the battery was completely dead, the horn would not even honk, no dash lights, nothing. I disconnected the cameras (not at the fuse box but disconnecting the jack from the camera), took it back to the garage where the battery was implicated as the cause. They replaced the battery, I drove home, and 24 hours later the battery is once again stone cold dead.
I'm having it towed back to the garage, where they are scratching their heads, tonight and wonder if anyone has any thoughts?
Last week I took it to a garage that has done a lot of work for me and had Blackview dash cams installed. When I tried to start the car again 24 hours later the battery was completely dead, the horn would not even honk, no dash lights, nothing. I disconnected the cameras (not at the fuse box but disconnecting the jack from the camera), took it back to the garage where the battery was implicated as the cause. They replaced the battery, I drove home, and 24 hours later the battery is once again stone cold dead.
I'm having it towed back to the garage, where they are scratching their heads, tonight and wonder if anyone has any thoughts?
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Hard to believe that the dash CAM could drain the battery within a day. Wonder if something was shorted during the install.
The Blackvue should have a power saver box anyway that cuts the power to the cam beyond a pre-set voltage.
The Blackvue should have a power saver box anyway that cuts the power to the cam beyond a pre-set voltage.
Thread Starter
Junior Member
Joined: Jul 2014
Posts: 24
Likes: 4
2013 SL550; Lexus RX 330
Agreed, that the camera should not be able to run down a new battery and in fact the camera was disconnected, at the device, when the second battery was drained.
I was told that the power saver box that I provided was not functioning so they connected it without one until a replacement arrived. Could a short create a drain that large?
Appreciate the input.
I was told that the power saver box that I provided was not functioning so they connected it without one until a replacement arrived. Could a short create a drain that large?
Appreciate the input.
Thread Starter
Junior Member
Joined: Jul 2014
Posts: 24
Likes: 4
2013 SL550; Lexus RX 330
Good suggestion. We did that after the first power loss. After a minute or so, after the computers went onto sleep mode the draw went down to a about .4 which I believe is correct.
The car is back in the garage now and they think that the computers sense the new connection and wake up again after a short "snooze". When they disconnected the camera leads the battery held onto the charge. I'n not sure what they were connecting to but we'll have to figure out another power source that does not wake up the car.
I''m wondering now, after the new battery was completely drained of power for several days before being re-charged, will it come back to full capacity. Or should I preplace with another new battery?
The car is back in the garage now and they think that the computers sense the new connection and wake up again after a short "snooze". When they disconnected the camera leads the battery held onto the charge. I'n not sure what they were connecting to but we'll have to figure out another power source that does not wake up the car.
I''m wondering now, after the new battery was completely drained of power for several days before being re-charged, will it come back to full capacity. Or should I preplace with another new battery?
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Joined: Nov 2010
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Benz
Good suggestion. We did that after the first power loss. After a minute or so, after the computers went onto sleep mode the draw went down to a about .4 which I believe is correct.
The car is back in the garage now and they think that the computers sense the new connection and wake up again after a short "snooze". When they disconnected the camera leads the battery held onto the charge. I'n not sure what they were connecting to but we'll have to figure out another power source that does not wake up the car.
I''m wondering now, after the new battery was completely drained of power for several days before being re-charged, will it come back to full capacity. Or should I preplace with another new battery?
The car is back in the garage now and they think that the computers sense the new connection and wake up again after a short "snooze". When they disconnected the camera leads the battery held onto the charge. I'n not sure what they were connecting to but we'll have to figure out another power source that does not wake up the car.
I''m wondering now, after the new battery was completely drained of power for several days before being re-charged, will it come back to full capacity. Or should I preplace with another new battery?
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