Number of Miles charged per hour

[prodigious1one]

Hello,

I learned that my iMiev charges around 15 miles of range per hour on level 2 charging.

I'm trying to figure out what number of miles it charges per hour on level 1 charging. I estimate around 7 miles per hour.

I wonder if this is true for all iMievs.

I drove from Marietta, GA to Athens, GA, home of the University of Georgia. My car made the journey with 84 miles of range. The distance is about 80 miles. I drove between 40 and 60 miles per hour on the way. I ended in Athens with about 13 miles of range while driving conservatively and switching from D mode for the highway to Eco mode for local roads.

I want to drive to Macon, GA on another day off. The distance would be 105 miles for me. I may need to charge for an hour at a shopping center beside I-75 near McDonough, GA just to ensure that I had enough charge to get to Macon. I may be able to recharge in Atlanta and spend some time in the city while I wait an hour on my way back to Marietta.

I'm learning that having memberships with multiple charging companies is useful for road trips.



Aaron

 

[Phximiev]

Post pics or a video of your trip and use the Plugshare app.

 

[mdbuilder]

Level 1, stock charger is more like 4 miles per hour.

 

[Don]

I learned that my iMiev charges around 15 miles of range per hour on level 2 charging.
I'm trying to figure out what number of miles it charges per hour on level 1 charging. I estimate around 7 miles per hour.
I wonder if this is true for all iMievs.

It all depends on the EVSE you're using, as mdbuilder correctly pointed out

If you have a Level 2 EVSE on a 15 amp circuit, your car charges as fast as the 3.3Kw charger can do it, which is around 15 miles an hour. If you have a 15 amp Level 1 EVSE, the charge time would be exactly half that rate, or about 7.5 miles an hour. The OEM Panasonic EVSE which came with the 2012 cars is limited to just 8 amps, so it's only about 2/3rds of the maximum, or around 4 or 5 miles per hour. If you have another, higher powered Level 1 EVSE (or if you've had your OEM Panasonic unit modified by EVSE Upgrade) then you'll get about 7 miles per hour using it

I'm guessing your car isn't DCQC equipped? That would be the ultimate solution for those longer trips - Get an 80% charge in just 20 or 30 minutes

Don

 

[prodigious1one]

Hi Don,

Yes, my imiev has no quick charge port.

I may trade for an electronic car that has quick charge. However the road trips are interesting with only level two charging since I can see more places and enjoy destinations during more time.

But I'll probably still trade for a level three car through car max or otherwise.

I hope the Chevy bolt will cause a decrease in price on the first generation electric cars.

Aaron

 

[Don]

I think the first generation cars are pretty well bottomed out pricewise now - If the price went any lower, the battery would be worth more than the car. A $30K 2012 iMiEV with 25,000 miles on it can be had for about $5K in many locations. Hard to imagine the Chevy Bolt affecting that price much if at all

Don

 

[JoeS]

OK, time to do the math, support the information in the previous posts, and beat this topic to death -

i-MiEV 'fuel' consumption (wall-to-wheels)

EPA: 30kWh/100mi ==> 3.33mi/kWh (Ref: https://www.fueleconomy.gov/feg/Find.do?action=sbs&id=36023)

JoeS: 4.2mi/kWh measured over 8000 miles (Ref: http://myimiev.com/forum/viewtopic.php?p=5744#p5744)

Hypermiling, any i-MiEV driver worth his/her salt could easily get 5mi/kWh

For the sake of this discussion, let's use 4 miles/kWh ==> 250Wh/mi

In this post I'll ignore DCQC as the rapidly-tapering nonlinear input means charge time varies and I haven't quantified this.

OK, here goes for J1772 - pick your EVSE:


8A Level 1 (Mitsubishi original stock Panasonic EVSE)

8A * 120vac = 960W ==> 960/250 = 3.8mi/hour charging


12A Level 1 (EVSEUpgrade.com, Clipper Creek, new Mitsu EVSE, etc.)

12A * 120vac = 1440W ==> 1440/250 = 5.8mi/hr charging


13A Level 2 208vac (most commercial L2 charging stations, one phase of three-phase commercial input)

13A * 208vac = 2704W ==> 2704/250 = 10.8mi/hr charging


13A Level 2 240vac (EVSEUpgrade.com and many commercial L2 charging stations)

13A * 240vac = 3120W ==> 3120/250 = 12.5mi/hr charging


Funny, for myself I never think in terms of miles/charginghour, but instead simplistically convert everything into fuel gauge bars. Here's my own rule of thumb:

8A L1: 4bars/5hours charging

12A L1: 6bars/5hours charging

13A L2 (240vac): 3bars/hour charging

Question: has anyone measured more than 13A input current on the J1772 input?

 

[Don]

Nuff said!

Don

 

[PV1]

Nice calculations.

Per some testing I did, current tapers as voltage rises and holds a max power of 3,016 watts. My OVMS module has reported 14 amps a couple of times on stations running under their rated voltage (197 volts on a 208 volt station).

 

[mdbuilder]

When I use the Charge point station on the way to the dealer it reports 3.0 Kw @ 208 volts (3 phase wiring) and estimates 12 miles per hour. 3,000/208=14.4 amps.

Canion reports 12 to 13 amps at home on the 16 amp Clipper Creek EVSE @240 volts, battery at 50% SOC...