Thinking of upgrading from Volt

Thinking of upgrading from Volt

I've currently leasing a Chevy Volt (love it, actually) but it will hit the end of its lease in mid-2014 and it looks unlikely that GM will have the next version of Volt available before 2015. Since I don't want to lease a new vehicle that will, by then, be old tech, I'm thinking of making the upgrade to a Tesla.

At my home and my fishing spot, I've installed 240v chargers for the Volt. Will I be able to continue to use these J1772 chargers, or do I need to upgrade? Would there be a charging time benefit if I did replace these units?


negarholger | 2013年8月20日

Model S comes with an J1772 adapter.
How much amp is your equipment ? Model S comes standard up to 40 A or can be configured with an option to go up to 80A.

Devilstower | 2013年8月20日

The chargers I have are both 40A and take about 3 hours to charge up the Volt's meager 35-40 mile range. (Fortunately for me, my daily commute is about 40 miles each way, and I have chargers at either end, so I run through gas very slowly.)

Sounds like all the existing pieces could stay in place. Thanks!

LionPowered | 2013年8月20日

Seems like if you have 240v circuits you should just install outlets should you end up with a Model S on your hands. The Model S has its charger built into the car so you don't need an external charge, just a 5-40 outlet will do the trick.

negarholger | 2013年8月20日

J1772 is not a charger, just a specialized outlet for EV charging.
J1772 is what you actually use at many/most public chargers.

40 A depending on the voltage you get about 25 to 30 miles an hour... so in about 10 hours you can recover from zero... but you should never be at zero. I charge at 24 A and never had an issue. Key is to stay overnight at a location, on the other hand arriving at 2 am and leaving at 6 am could cause a problem.

Devilstower | 2013年8月21日

The Volt comes with a charger, but it's a hassle dragging it out of the car each night (plus, since I don't have a garage it tends to get wet and dirty). So I set up the charging stations. I use the included charger when I get to work, where there is only a 110 outlet.

The Volt is, unfortunately, at zero most every day, but then it only has a range of around 40 miles (45 on my best day). It'll charge up in about 3 hours on the 240v charger, and takes about 8 on generic 110v.

negarholger | 2013年8月21日

Volt uses up 6.6 kW = 24 A ~ 17 miles / hr... so 3 hrs from zero is about right.
Standard MS uses up to 10 kW = 40A ~29 miles / hr.
Key is how long are the distances you are covering... in a 85 kWh you can go 150-180 realistic miles without worry too much on running empty - in 6-8 hrs you can fully recover on 40 A ( 8-10 hrs from zero - but you should never be at zero )
How does your "charger (cable)" connect to the house - hard wired or via an outlet.

RanjitC | 2013年8月21日

Put in Nema 14-50 outlets if you have 50 amp circuits available you can always have a fully charged 85 kwh battery at either end of your commute. A 60 kwh model S can easily handle your commute with overnight charging at home from a Nema 14-50 outlet using 40 of the 50 amps.

Cog | 2013年8月30日

The Volt charges at 3.3kw, not 6.6. So, ~11 miles of charge per hour, at best.

"150-180 realistic" Why? If EPA says 265 for the 85kwh version, and temps are right, I should think 250+ would be possible for a Volt owner, who already knows what heaters, etc, can do to range.

Lots of Volts are setup on 20A circuits, even if their J1772 "gun" is 40A capable. If you have a Volt and the "electrician's gone", look for the wire run that goes to your garage, approximate its distance and read what gauge is stamped on the sheathing. Should be 12, 10, or lower (lower=thicker). 12gauge is frequently used for 240v runs (dryers/pumps), but would be too thin to deliver 40A to a Tesla. So, I believe in those cases the Tesla would draw ~16A, like the Volt.

Haeze | 2013年8月30日

If you already have the J1772 installed at the house, and the cabin, leave them where they are, do NOT replace them with NEMA 15-40 or similar outlets.

Trust me, as an owner, I can tell you that dragging the cord around everywhere is a pain. It is MUCH more convenient to just unplug the car, hanging the cord on the wall, and drive away.

With the existing J1772 chargers you have installed, that would mean just pulling the J1772 adapter off of the cable and taking it with you as you get in the driver's seat. This is MUCH quicker and easier than coiling up the charging cable and tossing it in the trunk before you go.

If you install a regular outlet, you will need to either bring the cable everywhere you go, or buy a new cable for each location (at $650 a pop).

Taking the J1772 adapter with you (about the size of a tennis ball) when you unplug the car is MUCH easier. And if that is even too much, you can buy replacement J1772 adapters and leave them on your charging stations, at a cost of only $95 each, instead of the $650 for the full cable.

All in all, though, you will find that you need to do a LOT less charging, so charging at work on a slow 110v line will no longer be as stressing (if you decide to even bother charging at work anymore, since you will have the range to not worry about it).

Since your charging stations are already 40A, you can expect to charge the 85kWh version of the Model S at around 25-28 Miles of charge per hour (and you don't even have to buy the dual-charger option). Assuming you sleep more than 4 hours in a night, and you don't drive more than 100 miles every day, your battery will always be topped off from home, and from the cabin. Even by some string of bad luck, where you had to drive 200 miles in a day, and only get 2 hours of sleep before heading out again, you will still have at least 35miles in the pack, before getting another 50 miles charge in that 2 hours... meaning 85miles charge for the next day which you will get back the next night.

I currently drive 30 miles a day, then 80 miles each day on the weekends, with nowhere to charge at work, and I charge off of a regular 110v outlet every night (which only charges at 3 to 5 miles per hour), and I find on weekdays I still net more charge each day than I use to drive to and from work, and that cumulative 20 miles extra I get each day, makes it so I never have to worry about range on the weekends. With a 40A 220V charger, you will NEVER have to worry about getting enough charge overnight unless you are a doctor who is always on call, or something equivalent. For those people, they just get the dual-chargers, and the Tesla Charging Station for their garage.