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Hey guys.....like an idiot I left the parking lights on while tinkering around with the car the other night and left the parking lights on and it DRAINED my
battery....now I can't get it to start...the only thing that gets it juiced up enough is when I hook cables up to the jump points. No battery chargers I've tried have even come close to giving
me enough power to start it. Is there any kind of fuse or something I could check that might prevent me from starting her back up?
You should use a trickle charger and let the battery get back some of its juice, more than likely your battery is very weak to begin with, but I have a car I don't use regularly and I often cannot jump start it when the battery is super dead. Start off letting it trickle charge for 12-18 hours first and then trip jumping it.
You should use a trickle charger and let the battery get back some of its juice, more than likely your battery is very weak to begin with, but I have a car I don't use regularly and I often cannot jump start it when the battery is super dead. Start off letting it trickle charge for 12-18 hours first and then trip jumping it.
This car that you don't use often, do you jump start it from another car (big battery) or are you using a jump starter device of some kind? I cannot see why it would not start with jump start cables connected to another car.
If a battery is completely flat, a modern trickle charger may not charge it. It first tries to detect the correct polarity but cannot do it if the battery voltage is almost zero. An ancient charger would not have this issue.
Even if the battery is completely dead, if you use a powerful jump box or another car it WILL start. It uses the other battery to start. If it wont jump the cables are hooked up wrong, or the starter is dead.
What i am saying is use the Trickle charger to get some juice back or better let it completely charge up the battery. My old 84' car which drains the battery much more than a fully modern car goes completely dead and I cannot start it even with a large Sear starter, so I use the trickle charger for at least 12 hours, then I jump it.
Hey guys.....like an idiot I left the parking lights on while tinkering around with the car the other night and left the parking lights on and it DRAINED my
battery....now I can't get it to start...the only thing that gets it juiced up enough is when I hook cables up to the jump points. No battery chargers I've tried have even come close to giving
me enough power to start it. Is there any kind of fuse or something I could check that might prevent me from starting her back up?
Thanks in advance!
Pete
Use another car to Jump Start. If your battery is over 5-7 years old, replace it.
Do not (I repeat--Do Not) jump start a car with modern electronics.
Charge the battery all the way up--or risk expensive repairs to the various computers.
Nah, actually this is not true. My '16 S550 shows the "how to jump start" in the MB owners manual. Pretty basic procedure which is the same for most if not all cars.
Do not (I repeat--Do Not) jump start a car with modern electronics. Charge the battery all the way up--or risk expensive repairs to the various computers.
I tend to agree with not using the old fashioned method of jumper cables between two cars, but I think you'd be safe with something like this. I was made aware of it on an episode of Goss' Garage (RIP the late Pat Goss) on Motorweek. I promptly ordered one just to have handy. It has built-in protection for mis-connecting, etc. for modern cars.
Do not (I repeat--Do Not) jump start a car with modern electronics.
Charge the battery all the way up--or risk expensive repairs to the various computers.
This really isn't true, as long as its done properly. Done improperly there is a ton of risk to the car. I would never jump the Mercedes off another car or use it to jump another car unless I absolutely had to. We had family here a few months ago and their car was dead, I backed the Pacifica out of the garage and used it to jump their car lol
Modern jumpstarters though are really idiot proof, and the Mercedes is super well laid out to where you really would have to try hard or be profoundly stupid to hurt it
I tend to agree with not using the old fashioned method of jumper cables between two cars, but I think you'd be safe with something like this. I was made aware of it on an episode of Goss' Garage (RIP the late Pat Goss) on Motorweek. I promptly ordered one just to have handy. It has built-in protection for mis-connecting, etc. for modern cars.
I have 3 Noco boost units, a couple of gb50 and a larger gb70 unit, great units and very easy to use.
I jumpstarted my wife's car a month ago with my E350. I did not have my car running during the jump. Was apprehensive but since they put the jumper terminals there I went ahead. No issues since then.
I jumpstarted my wife's car a month ago with my E350. I did not have my car running during the jump. Was apprehensive but since they put the jumper terminals there I went ahead. No issues since then.
Issue with jumping a car off of your car with the engine not running is it will likely deplete your battery to the point where you can't get your own car started again
Issue with jumping a car off of your car with the engine not running is it will likely deplete your battery to the point where you can't get your own car started again
If the power sourcing car had a reasonably well charged battery, it would withstand several cold starts and for the battery capacity it does not matter if the consuming starter motor was on the same car or on another one.
Starting the source car helps the helped car battery gain a bit of power which is very good specifically if jumper cables are thin. Just connecting a good battery does not give much juice to the flat battery. It would be good to run the source car at least some time if not while starting the helped car.
Certain MB models had very sensitive SAM control units but jump starting with another car would be fine if done properly. I'd say best to have the source car switched off when connecting jump cables. Next start the source car and run it for a while. A matter of opinion if the source car needs to be switched off before the helped car is started but at least switch it off before disconnecting cables. Even better if the helped car too is switched off first. May not be possible if the helped car has a completely dead battery (not only low by charge but one that cannot hold any charge).
If the power sourcing car had a reasonably well charged battery, it would withstand several cold starts and for the battery capacity it does not matter if the consuming starter motor was on the same car or on another one.
You don't know that for sure though, and usually the sourcing car was recently started and moved into position to be jumped off of and wasn't run long enough to recharge the battery from that start.
Its just not necessary or a good idea to jump another car off of one that isn't running.
Issue with jumping a car off of your car with the engine not running is it will likely deplete your battery to the point where you can't get your own car started again
Was a non problem. Her car and then my car (after disconnected) started right up. But I could see the concern in the wrong scenario.
You don't know that for sure though, and usually the sourcing car was recently started and moved into position to be jumped off of and wasn't run long enough to recharge the battery from that start.
Its just not necessary or a good idea to jump another car off of one that isn't running.
I don't know it for sure. But think of it. Equally you don't know for sure that the electronics of each car are not affected by the response of the alternator voltage control immediately after an unexpected power drain from a flat battery connected with jump start cables. There too I cannot say for sure that control units get broken but we have a lot of statistics for certain MB models (mainly the W211 and the W203) having SAM units killed.
In any case, the sourcing car battery is supposed to be able to start the sourcing car. If it was able to start the helped car and would die there, the helped car could be used to jump start the original helping car later on once it has sufficient battery charge.
Seriously, I would be much more concerned about the risk of a control unit failure rather than the risk that the jump start source car would not start if not running while providing help (actually not starting before the helped car gets jump started, but after the jump start cables have been connected).
Each to their own, it is only the owner of the car who can make the decision taking into account all aspects raised at this thread.
I don't know it for sure. But think of it. Equally you don't know for sure that the electronics of each car are not affected by the response of the alternator voltage control immediately after an unexpected power drain from a flat battery connected with jump start cables. There too I cannot say for sure that control units get broken but we have a lot of statistics for certain MB models (mainly the W211 and the W203) having SAM units killed.
In any case, the sourcing car battery is supposed to be able to start the sourcing car. If it was able to start the helped car and would die there, the helped car could be used to jump start the original helping car later on once it has sufficient battery charge.
Seriously, I would be much more concerned about the risk of a control unit failure rather than the risk that the jump start source car would not start if not running while providing help (actually not starting before the helped car gets jump started, but after the jump start cables have been connected).
Each to their own, it is only the owner of the car who can make the decision taking into account all aspects raised at this thread.
I don't know it for sure. But think of it. Equally you don't know for sure that the electronics of each car are not affected by the response of the alternator voltage control immediately after an unexpected power drain from a flat battery connected with jump start cables. There too I cannot say for sure that control units get broken but we have a lot of statistics for certain MB models (mainly the W211 and the W203) having SAM units killed.
In any case, the sourcing car battery is supposed to be able to start the sourcing car. If it was able to start the helped car and would die there, the helped car could be used to jump start the original helping car later on once it has sufficient battery charge.
Seriously, I would be much more concerned about the risk of a control unit failure rather than the risk that the jump start source car would not start if not running while providing help (actually not starting before the helped car gets jump started, but after the jump start cables have been connected).
Each to their own, it is only the owner of the car who can make the decision taking into account all aspects raised at this thread.
Honestly, I just wouldn't use the S Class to jump another car if you are worried about this. I would never use it to jump another car. Way better than trying to use it when powered off and winding up stranded yourself.
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