Battery dead? Help...
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From: San Diego
E55
The negative cable goes to a box with a connector on it. Are you sure it's ok to the connect that source? I was hesitant because it has that black box with a electrical connector.
To avoid risk I attached the black clamp from the trickle charger to that bolt you see. But, unsure if that's a good enough ground.. It looks ok because it connect the chassis.
Is that ok?
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From: San Diego
E55
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From: MA
2008 E350 4Matic, 2011 E350 4matic
Not all cars have the battery in the trunk, Wind chill will effect the engine and most components including front mount batteries and the drive line if the car is parked into the wind.
In a garage the vehicle is only ambient temp as you state.
A battery will fail on the coldest days and the hottest days sometimes without warning.
Personally would not risk my life or any others driving the highways here running an ancient battery,( over 5-6 years) no matter what the test outcome was. To me its like running near the wear bars on tires because they are still round and hold air. Or not changing out the brake pads until the indicator tells me. IMO Just Sayin
These cars we have are power hogs, respect that.
In a garage the vehicle is only ambient temp as you state.
A battery will fail on the coldest days and the hottest days sometimes without warning.
Personally would not risk my life or any others driving the highways here running an ancient battery,( over 5-6 years) no matter what the test outcome was. To me its like running near the wear bars on tires because they are still round and hold air. Or not changing out the brake pads until the indicator tells me. IMO Just Sayin
These cars we have are power hogs, respect that.
Just google wind chill or read the wiki which says "The effect of wind chill is to increase the rate of heat loss and reduce any warmer objects to the ambient temperature more quickly. It cannot, however, reduce the temperature of these objects below the ambient temperature, no matter how great the wind velocity."
The risk in running an ancient battery is that the car won't start. That's what it's needed for. When the car is running, you can have a dead battery and as long as the alternator is working, the car will still run.
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From: Canada
07 E63 + 07 CLK63CAB
Thank you for the insight, any automotive questions I will forward to you, this way I can rid myself of any engineering/automotive knowledge so I have room for video game strategy.
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From: San Diego
E55
I got my 1.5 amp battery tender all hooked up last night. And it went green 3 hours later and stayed green this morning. I checked voltage while still connected and the voltage shows 12 volts. Not what I was hoping for as that is pretty much what I began with before. Wanted to see it charge for longer period of time also. Wanted to see higher then 12 volts cold, car not running.
It's says its charged green light and i suppose just mantaining it. I will leave it on another day and see what happens.
It's says its charged green light and i suppose just mantaining it. I will leave it on another day and see what happens.
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MBWorld Fanatic!
Joined: Nov 2007
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From: San Diego
E55
The car sat for awhile and hasn't been started often. I'm thinking the battery is going bad. I was hoping to get a little more life from maintaining the battery with the battery tender.
Above 12.7 minimum with the car off sounds too high. I think its suppose to be 12.6 and below. When car is on it should be 14.2 range. No higher
Either way I will go have it load tested and go from there. Thank you!
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From: MA
2008 E350 4Matic, 2011 E350 4matic
Ok will do, But, the voltage meter is right from the AMG screen. It's accurate.
The car sat for awhile and hasn't been started often. I'm thinking the battery is going bad. I was hoping to get a little more life from maintaining the battery with the battery tender.
Above 12.7 minimum with the car off sounds too high. I think its suppose to be 12.6 and below. When car is on it should be 14.2 range. No higher
Either way I will go have it load tested and go from there. Thank you!
The car sat for awhile and hasn't been started often. I'm thinking the battery is going bad. I was hoping to get a little more life from maintaining the battery with the battery tender.
Above 12.7 minimum with the car off sounds too high. I think its suppose to be 12.6 and below. When car is on it should be 14.2 range. No higher
Either way I will go have it load tested and go from there. Thank you!
Last edited by cetialpha5; Jan 21, 2015 at 10:37 PM.
Junior Member
Joined: Aug 2014
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From: Bay Area, CA
2006 E55
Sorry to bump this thread, but the white "low battery, convenience options not available" still comes on periodically. I had the battery control module replaced a few months ago. the aux battery was replaced last year, not sure what else could it be? the main battery?
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From: Folsom, CA
2005 E55 AMG
Sorry to bump this thread, but the white "low battery, convenience options not available" still comes on periodically. I had the battery control module replaced a few months ago. the aux battery was replaced last year, not sure what else could it be? the main battery?
check your battery voltage:
put key in the ignition, turn to stop #1
push the odometer reset button 3 times, it will bring up battery voltage (mine was 11.6)
turn the key to #2 position (not start) so all accessories turn on (my voltage dropped to 11.3)
a good battery will register 12.6-12.7 on key #1 and ~12.3-12.4 on #2
Member
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2004 MB E55 AMG
Hey Toadster, there are many of you like Shardel etc that have been a great help on mbworld site, thanks for that.
I was occassionlly getting conv functions uavail and mybattery would go down to 11.6v after a while.
I just swapped my 6 yr old battery for a new one and got the battery sign with visit workshop esp warning (it wasn't red on the dash). 1 malfunction same as last time I charged the old battery.
So I shut the car off turned it on and off a couple times and no warning & no malfunction.
Did you have that as well after swapping batteries?
I was occassionlly getting conv functions uavail and mybattery would go down to 11.6v after a while.
I just swapped my 6 yr old battery for a new one and got the battery sign with visit workshop esp warning (it wasn't red on the dash). 1 malfunction same as last time I charged the old battery.
So I shut the car off turned it on and off a couple times and no warning & no malfunction.
Did you have that as well after swapping batteries?
MBWorld Fanatic!
Joined: Dec 2011
Posts: 4,066
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From: Folsom, CA
2005 E55 AMG
Hey Toadster, there are many of you like Shardel etc that have been a great help on mbworld site, thanks for that.
I was occassionlly getting conv functions uavail and mybattery would go down to 11.6v after a while.
I just swapped my 6 yr old battery for a new one and got the battery sign with visit workshop esp warning (it wasn't red on the dash). 1 malfunction same as last time I charged the old battery.
So I shut the car off turned it on and off a couple times and no warning & no malfunction.
Did you have that as well after swapping batteries?
I was occassionlly getting conv functions uavail and mybattery would go down to 11.6v after a while.
I just swapped my 6 yr old battery for a new one and got the battery sign with visit workshop esp warning (it wasn't red on the dash). 1 malfunction same as last time I charged the old battery.
So I shut the car off turned it on and off a couple times and no warning & no malfunction.
Did you have that as well after swapping batteries?
MBWorld Fanatic!
Joined: Dec 2011
Posts: 4,066
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From: Folsom, CA
2005 E55 AMG
others may have input
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From: MA
2008 E350 4Matic, 2011 E350 4matic
You have a 6/2amp charger right? Did you charge the aux battery also? Deep discharges aren't good for the battery and reduces battery life. Did you buy a new battery? You might also want to consider getting a battery disconnect switch so you don't kill it while it's sitting for long periods.
Thread Starter
Member
Joined: Sep 2014
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2005 E55 AMG
Ive been hooked up to the trickle charger at 2 amps for almost 40 hours now, still has not went into maintenance mode. Seems a little long no? All functions have returned, the rear end is back up, no msgs in cluster.
About charging the AUX battery, I read somewhere that whilst charging the main battery the AUX also gets charged and once the car turns over the alternator takes care of the rest?
Is that information wrong? If the AUX was dead and the main charged wouldn't I get a msg in the cluster?
About charging the AUX battery, I read somewhere that whilst charging the main battery the AUX also gets charged and once the car turns over the alternator takes care of the rest?
Is that information wrong? If the AUX was dead and the main charged wouldn't I get a msg in the cluster?
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From: Canada
07 E63 + 07 CLK63CAB
Save yourself from getting Carpel Tunnel writing about your batteries, just go buy a new main and a new aux and enjoy 5-7 years of no issue.
Resurrecting a dead battery is okay if you are going to use it to power a 1980 car radio for a few days, you cannot expect it to power your car without causing damage to other components.
Resurrecting a dead battery is okay if you are going to use it to power a 1980 car radio for a few days, you cannot expect it to power your car without causing damage to other components.
Thread Starter
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Joined: Sep 2014
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2005 E55 AMG
New batteries are deffenitely on the purchase list come Mid april. Im just curious more then anything else. Information on this subject is so scattered and conflicting you don't know which direction to take.
But like you said, the easiest way to go is change the batteries and see what happens next.
But like you said, the easiest way to go is change the batteries and see what happens next.
