[vadsoom]

Hi All,

I’ve been working with SCoA member Helga trying to help her with decreasing the charge times for her 453 ED. She has a 120 volt charger and is seeing some very long charge times, even with the charger set for 12 amps.

I’m curious what other 453 ED owners are seeing for real-world charge times, particularly when using a 120 volt charger.

Thanks in advance!

 

[DudeInTheSmart]

I rarely 120V charge, as my wife has level 2 at work. The couple of times that I have charged at home from around 20% have been estimated at 8 hours or so as I remember. Always done by the next morning. I am on a 20 Amp circuit in my garage and have an aftermarket charge box that will deliver 15 Amps.

 

[vadsoom]

Are there settings in the car to adjust the current draw or is the only adjustment on the charger?

 

[DudeInTheSmart]

No setting that I am aware of, will charge at maximum available rate based on the waveform sent from the box as I understand it.

 

[Jeb Baker]

Hi All,

I’ve been working with SCoA member Helga trying to help her with decreasing the charge times for her 453 ED. She has a 120 volt charger and is seeing some very long charge times, even with the charger set for 12 amps.

I’m curious what other 453 ED owners are seeing for real-world charge times, particularly when using a 120 volt charger.

Thanks in advance!

With the supplied 120v, 8a/12a charger cable, and the onboard 7.2kW charger on a 2017 W453 model, and typically recharging at 40-60%SOC, the car is 100%SOC after 10-14hrs using 12amps, 12-18hrs using 8amps. From my M/B supplied window spec sheet:

I only recall once going really low, below 10% SOC, but then recharged with a 240v/30a source and cable. I can read the amps in r/t with the 240v cable, they dropped dramatically as it got nearer to 100% SOC. I guess this is probably true with the 120v charging sequence too. Also the radiator cooling system runs at various times while charging, right away on plug-in if the batteries are hot from just having been driven, or later on if it's a hot summer day. Or sometimes not at all.

 

[Shiloh4378]

I now have two vehicles that use the same level 1 charger.

I find the best way of dealing with this is keeping the vehicles in a 40% -80% or 25%-75% state of charge by having the electric vehicles handle local around town driving and a gas vehicle for longer trips.

I have done 50 to 60 mile journeys with a full charge but Atlanta highway driving is a bit homicidal these days. Even if I can do it, I try to take secondary roads if at all possible.

 

[lebikerboy]

I find it takes about 14 hours from less than 10% to full using 110V which draws 12 Amps...

 

[DudeInTheSmart]

If your circuit is 20A rated (12 AWG wire and a 20 A breaker) you can go with a faster charger than the supplied 12 A. I use this one:

Amazon.com: Morec EV Charger 16A 3.68KW NEMA6-20 Plug with Adapter for NEMA 5-15, 100V-240V 20ft (6m) Level 1 Level 2 Electric Vehicle charging cable Compatible with All EV Cars : Automotive

Buy Morec EV Charger 16A 3.68KW NEMA6-20 Plug with Adapter for NEMA 5-15, 100V-240V 20ft (6m) Level 1 Level 2 Electric Vehicle charging cable Compatible with All EV Cars: Charging Stations - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

www.amazon.com

That alone should cut charge time by 25% or so. If you can hit a 240V dryer circuit (would have to add an appropriate pigtail socket converter), can cut time further in 1/2.

Fortunately PlugShare shows lots of options for 6-7.4 kW Level 2 chargers around me. If I go shopping at the local Safeway I can get from 50 to 80% while grabbing groceries or my wife charges at work.