Showing posts with label battery. Show all posts
Showing posts with label battery. Show all posts

Saturday, September 26, 2009

110 Shuffle With No Highways


Yesterday I had to take a longer trip than I was used to in the MINI E. 100 miles round trip and near the end I knew I would need lights and heater. I was heading to a business meeting in Englewood Cliffs NJ, start point was Mendham NJ.

The day before my trip I could feel the anxiety setting in, I need a plan. I'd stay off the main highways, stick to 46 and stay off of 80 to extend range and while at my series of meetings I'd plug in the car where I could, to get a little extra boost.

On my first leg of the trip, about 48 miles I was doing pretty well, the computer said I had 70 left to go. I was feeling pretty confident at that point and one of the buildings where my meetings where held was kind enough to let me plug in for about an hr and I got a 4% boost. This was 4% after the 3 to 4 times I plugged in as the buildings I was meeting in were separated so I had to drive back and forth between them interrupting my charging - I left the cable at the one building and plugged in there when I could.

So now I am reading to head back home, the distance meter on the MINI E said 77 miles....of course I had to give one "thank you" ride to the building maintenance guy who let me plug in...that ride took the 4% he gave me ;)

On my way back I figured I'd jump on the highway to see how it goes, after 3 miles I could see I was going to eat up a lot of juice and I wanted have plenty left for heat and lights and anything else that comes my way...being in NJ a lot of things can come your way unpredictably on the roads.

I jumped off 80 and got onto 46, range ticked up a bit and I was moving along. Thanks to phantom NJ road signs I ended up on some other branch of 46, that cost me 10 miles and 15 mins before I got back on track. Now it was getting dark, I switched on the lights, range said 34 miles and I had about 25 to go...hmmmmmm. I will say it is interesting how adjusting speed and resting the battery at lights can play with the range indicator, in your favor I might add, but having a 10 mile buffer in Joisey is not the most appealing.

So I decided to pull off 46 and hit smaller roads, that did increase my range. Now I'm getting close to home, about 12 miles to go, range says 21 and I'm starting to crave heat as it was 58 degrees outside plus I was heading to a section of road that eats EV battery capacity for lunch. No EV soldier hold off until you are close enough to coast home, I thought to myself. Well, when I got to with in 10 miles I put the heat on, settings were 1 for fan and heat...by the way, very toasting. I think the heat index of setting 1 is pretty good, seems stronger than a gas car. Of course in the blink of an eye my range went from 19 to 16 but it then held for the next 8 miles and I actually pulled into my driveway with around 17 mile left and 17% at 99.3 miles total, there is long slow section followed by a good downhill before my house that usually gets me 3 to 4 miles back.

In conclusion, I probably would have made it without the boost on the 110, but it would have been close, I have not gone past 0% as others have so I do not know if I could have gone farther. Granted I really don't want to be down to crumbs becasue if I run out of juice on the roads where I live I could be there a very very long time before I'm found. ;) In the heart of winter I expect range to really drop as I will be forced to keep the heat going all the time and I will be taking this business trip again.....stay tuned.

PS - I'm still on the 110, so over half a day later I'm just at 70%, 110 does take awhile to get back to 100% when near 0%. Added, just got my electric bill with an actual read, wow, as in high. I think the 110 is not efficient as it is a long continuous 12 amps. I'll have details on this later after I speak with the utility.

Monday, August 31, 2009

Getting Cold


So it seems summer is struggling to hang around. It is 55 degrees right now and I know when the battery temp gets to 40 the MINI E will not recharge. I took a look at the batteries and they are at a cool 70 and recharging fine, in fact, since the weather is cooler and less humid I'm back to easy 110 charging.

This AM the weather was low 60s and the batteries never went above 71 while driving nor did they go below 70. I'm guessing the MINI E will try not to let the battery pack get below 70. I see it maintaining that minimum temp when I'm plugged in, charging or not. I wonder if unplugged and dormant will the batteries maintain that temp?

Anyone else notice lower temps on their MINI E battery pack?

Wednesday, August 26, 2009

Charge Anxiety - The Return

So last night was a pretty good night for charging my MINI E, it was a cool and once the battery got down to 80 degrees I was good to go, no breakers popping. There is definitly a charge wall I have to break through while being on the 110 cable, here is what I've learned with #402.

> It does not like humidity, no doubt about it

> In the mornings when the battery temp is in the 70s I get my best range, did 18 miles and still had 108 showing on the dash this AM

> If the battery temp is above 80 when charging I am likely to get a breaker pop on the cable unless I open the windows all the way

> The cable pops the most when I'm just below 80%, once I get past that hump it is smoother sailing

> If the battery fan is going strong charging takes much longer

> Even with the 110 I can to the top off technique

> OBSERVATION: while sitting in the car, having charge anxiety, checking the %, LED blinking, I heard the breaker pop again, LED goes off and suddenly the battery fan goes into turbo mode for a split second and all is quiet, was that a surge, a cough or a gag...who knows

> OBSERVATION 2: sometimes the key will not roll down the windows when the car is having charging problems and the interior light will not go on when I open the door - related, maybe

So what is the return I refer to? Right, tonight, its popping again and it is a bit warmer, battery is at 82 degrees and I'm just below 80%. Charge anxiety is my companion.


The picture above was taken at Morristown MINI the other day, I was there to get a catch up charge. When I pulled up I saw Tom's #250 plugged in getting a charge after his service, well, all's fair in love and war and I needed some juice. Off to the side with ya #250!

MINI E awesomeness - still there