2019 C63S coupe partial battery charged?
Thread Starter
Super Member
Joined: Mar 2019
Posts: 595
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From: NYC area
2019 C63S Coupe
2019 C63S coupe partial battery charged?
Purchased my 2019 C63S coupe in April, 2019 and when I checked my Me Connect app. It revealed Partial Battery Charge. One of this instruction was to run vehicle for 30 minutes which I did and now the app. say Starter Battery Charged.
I parked in an inside garage for only 2 days . No accessory were accidentally left on.
Any ideas is this normal or bring it into Dealership have it checked?
Thanks
I parked in an inside garage for only 2 days . No accessory were accidentally left on.
Any ideas is this normal or bring it into Dealership have it checked?
Thanks
Senior Member
Joined: Jan 2019
Posts: 439
Likes: 74
From: California
2019 AMG C63S
Mine moves to partially charged status roughly a week or more without usage. i think. This happened only twice or so since I take my car out at least every few days.
Are you sure there is nothing eating your battery when your car is parked and switched off (eg. Dashcams, etc.)?
You might also want to see if you can leave the engine running longer or may be go for a longer drive and see how long it is before Mercedes Me says that the battery is partially charged.
Are you sure there is nothing eating your battery when your car is parked and switched off (eg. Dashcams, etc.)?
You might also want to see if you can leave the engine running longer or may be go for a longer drive and see how long it is before Mercedes Me says that the battery is partially charged.
Thread Starter
Super Member
Joined: Mar 2019
Posts: 595
Likes: 96
From: NYC area
2019 C63S Coupe
Mine moves to partially charged status roughly a week or more without usage. i think. This happened only twice or so since I take my car out at least every few days.
Are you sure there is nothing eating your battery when your car is parked and switched off (eg. Dashcams, etc.)?
You might also want to see if you can leave the engine running longer or may be go for a longer drive and see how long it is before Mercedes Me says that the battery is partially charged.
Are you sure there is nothing eating your battery when your car is parked and switched off (eg. Dashcams, etc.)?
You might also want to see if you can leave the engine running longer or may be go for a longer drive and see how long it is before Mercedes Me says that the battery is partially charged.
Will monitor and bring to MB if it happens again.
Thanks
MBWorld Fanatic!
Joined: Mar 2006
Posts: 4,278
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From: San Jose area
'19 E63S sedan
Thanks. Don't have anything I believe draining battery. It's normally my DD but from Thursday evening to Sunday evening park in an inside garage. Only the app.showed Partially Charged. When I entered my car and started it nothing inside the car info system informed me that the Partially Charged warnings.
Will monitor and bring to MB if it happens again.
Thanks
Will monitor and bring to MB if it happens again.
Thanks
The best solution is to hang an AGM battery minder on the car now and then. I use this one:
You'll probably find it takes more than 24 hours for the charger to fully charge the battery. Once it's topped up, I can go a few weeks without getting the alert. A good AGM charger, like this one, is highly recommended.
Senior Member
Joined: Jan 2019
Posts: 439
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From: California
2019 AMG C63S
It's normal. This generation of cars has so much going on electronically that the battery is always being drained. For instance, how do you think the app is finding out that the battery is partially charged? Via cell phone technology that's always on. It wouldn't be able to tell you where the car is (in case it's stolen, for instance) if it wasn't in constant communication when "off." My E-class has a standby mode that turns off a lot of these things if you're leaving the car for over a week. Yours might also.
The best solution is to hang an AGM battery minder on the car now and then. I use this one:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
You'll probably find it takes more than 24 hours for the charger to fully charge the battery. Once it's topped up, I can go a few weeks without getting the alert. A good AGM charger, like this one, is highly recommended.
The best solution is to hang an AGM battery minder on the car now and then. I use this one:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
You'll probably find it takes more than 24 hours for the charger to fully charge the battery. Once it's topped up, I can go a few weeks without getting the alert. A good AGM charger, like this one, is highly recommended.
Thread Starter
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Joined: Mar 2019
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From: NYC area
2019 C63S Coupe
Yes, these cars have lot of background communication and other monitoring electronics running. The LTE module is called Hermes I think. Although, these are microprocessors with low current draws and do not wake up more than few times within an hour, and instead rely a lot on Cloud for caching the state when the engine is switched off. So they can last a long time without putting a huge drain on the battery (I would say 4 weeks at least usually). C-Class also has the extended standy option like you described which will completely power down these as well until you unlock your car using the remote.
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2019 C63CS
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Senior Member
Joined: Jan 2019
Posts: 439
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From: California
2019 AMG C63S
Yep, the setting is buried deep in the car's Infotainment (COMAND) system as superswiss pointed out. It might be a bad experience to have this option in the app because once you turn it on, the car will stop communicating and you can no longer connect to the car using the app.
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09 SL500, 03 E320 CDI Wagon
Buy a 4 stage charger, and hook it up to the car, with a permanent install. Make sure it is suitable for AGM batteries.
Every time you leave the car for more than one day, plug it, and let it maintain the battery until you need the car again.
The charger should have a charge current of min 2A, better 4 A.
Every time you leave the car for more than one day, plug it, and let it maintain the battery until you need the car again.
The charger should have a charge current of min 2A, better 4 A.
MBWorld Fanatic!
Joined: Mar 2006
Posts: 4,278
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From: San Jose area
'19 E63S sedan
Buy a 4 stage charger, and hook it up to the car, with a permanent install. Make sure it is suitable for AGM batteries.
Every time you leave the car for more than one day, plug it, and let it maintain the battery until you need the car again.
The charger should have a charge current of min 2A, better 4 A.
Every time you leave the car for more than one day, plug it, and let it maintain the battery until you need the car again.
The charger should have a charge current of min 2A, better 4 A.
Last edited by whoover; Oct 6, 2019 at 10:39 AM.
Senior Member
Joined: Aug 2019
Posts: 340
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From: Europe
09 SL500, 03 E320 CDI Wagon
The battery don't care if it is charged with 4 stage or 8 stage charger, and to my knowledge, and experience, it has no influence on the battery life time or cycles.
I have 1000Ah AGM batteries on my boat, running now for it's 10th year, hooked up to a simple 4 stage charger, and their capacity is still as good as new, despite some deep cycle discharge, from time to time.
MBWorld Fanatic!
Joined: Mar 2006
Posts: 4,278
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From: San Jose area
'19 E63S sedan
There is no doubt that the charger you recommend, is up to the job, but less can do, unless you are a high tech guy, who likes the best, and is willing to pay for it. In regard to the temp. compensation, with those low current it charges, overheating is not an issue.
The battery don't care if it is charged with 4 stage or 8 stage charger, and to my knowledge, and experience, it has no influence on the battery life time or cycles.
I have 1000Ah AGM batteries on my boat, running now for it's 10th year, hooked up to a simple 4 stage charger, and their capacity is still as good as new, despite some deep cycle discharge, from time to time.
The battery don't care if it is charged with 4 stage or 8 stage charger, and to my knowledge, and experience, it has no influence on the battery life time or cycles.
I have 1000Ah AGM batteries on my boat, running now for it's 10th year, hooked up to a simple 4 stage charger, and their capacity is still as good as new, despite some deep cycle discharge, from time to time.
The temperature compensation is significant with AGM batteries. They operate at a higher voltage than flooded-cell batteries, and their charge acceptance does vary with ambient temperature. Furthermore, many older models have an "AGM/Cold" mode, which is a red flag that it's not really optimized for AGM deep-cycle characteristics. Having temperature compensation separate from AGM mode is what's important to look for.
These latest programs (desulphation, soft start, bulk charge, absorption, analysis, [optional recondition charge], float and pulse tending) absolutely can extend battery life. A car battery that's used for short cycles every day is in a tough environment, and the newest technology is optimized for this.
Again, if you have a decent AGM charger you're in good shape. If you're getting a new one, spend a few bucks more on something like the CTEK MXS 5.0.
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Joined: Aug 2019
Posts: 340
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From: Europe
09 SL500, 03 E320 CDI Wagon
It's really not much more expensive than an older model, so if need to get one it's a great choice. If you have an older model, great.
The temperature compensation is significant with AGM batteries. They operate at a higher voltage than flooded-cell batteries, and their charge acceptance does vary with ambient temperature. Furthermore, many older models have an "AGM/Cold" mode, which is a red flag that it's not really optimized for AGM deep-cycle characteristics. Having temperature compensation separate from AGM mode is what's important to look for.
These latest programs (desulphation, soft start, bulk charge, absorption, analysis, [optional recondition charge], float and pulse tending) absolutely can extend battery life. A car battery that's used for short cycles every day is in a tough environment, and the newest technology is optimized for this.
Again, if you have a decent AGM charger you're in good shape. If you're getting a new one, spend a few bucks more on something like the CTEK MXS 5.0.
The temperature compensation is significant with AGM batteries. They operate at a higher voltage than flooded-cell batteries, and their charge acceptance does vary with ambient temperature. Furthermore, many older models have an "AGM/Cold" mode, which is a red flag that it's not really optimized for AGM deep-cycle characteristics. Having temperature compensation separate from AGM mode is what's important to look for.
These latest programs (desulphation, soft start, bulk charge, absorption, analysis, [optional recondition charge], float and pulse tending) absolutely can extend battery life. A car battery that's used for short cycles every day is in a tough environment, and the newest technology is optimized for this.
Again, if you have a decent AGM charger you're in good shape. If you're getting a new one, spend a few bucks more on something like the CTEK MXS 5.0.
But that said, my 4 stage charger, maintaining the AGM battery in my Wagon ( battery is now 6 years old ), I will not throw away.
Thread Starter
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Joined: Mar 2019
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From: NYC area
2019 C63S Coupe
Out Of Control!!
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From: San Francisco Bay Area
2019 C63CS
Not necessary for 2 days. It's meant for longer term storage. We are talking weeks. I'd consider putting it in Standby Mode if you go on vacation for a couple of weeks for example. Don't get too concerned. Partially charged just means the battery is not completely full anymore. As mentioned, these cars don't fully shut off. They are in constant communication so you can remote lock/unlock/start the car at any time. When I had the PPF installed on mine it was sitting over the weekend at the installer. 5 days total. The app said the same that the starter battery was partially charged. Nothing to worry about.
Thread Starter
Super Member
Joined: Mar 2019
Posts: 595
Likes: 96
From: NYC area
2019 C63S Coupe
Not necessary for 2 days. It's meant for longer term storage. We are talking weeks. I'd consider putting it in Standby Mode if you go on vacation for a couple of weeks for example. Don't get too concerned. Partially charged just means the battery is not completely full anymore. As mentioned, these cars don't fully shut off. They are in constant communication so you can remote lock/unlock/start the car at any time. When I had the PPF installed on mine it was sitting over the weekend at the installer. 5 days total. The app said the same that the starter battery was partially charged. Nothing to worry about.
Senior Member
Joined: Jan 2019
Posts: 439
Likes: 74
From: California
2019 AMG C63S
When I did my PPF and tints my installer had to keep the car for 5+ days. They left the car unlocked and in accessory mode since it was convenient for them to prevent the car from locking itself periodically. However, I started getting these notifications after third day. When it's close to depletion, it sends a different alert "Critical Battery" which is the one you should actually be concerned with.
They ran the engine for few mins every few hours the next 2 days, but the last day they did not bother doing that and it stayed with "Critical Battery" alerts for almost the whole day when I picked up the car, I still did not have any issues when I drove back the car home (and it charged fully within 20 mins).
Unless you plan to leave your car unused for weeks together (for eg. prior to traveling), you can wait till you get the "Critical" alert before having to worry.
They ran the engine for few mins every few hours the next 2 days, but the last day they did not bother doing that and it stayed with "Critical Battery" alerts for almost the whole day when I picked up the car, I still did not have any issues when I drove back the car home (and it charged fully within 20 mins).
Unless you plan to leave your car unused for weeks together (for eg. prior to traveling), you can wait till you get the "Critical" alert before having to worry.
