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Although we agree about the relatively flat voltage curve, it still does not explain the phantom loss of SOC in the ~91-100% range. Those are typically called, coulomb counters. Regardless, there are some simple tests that could document the SOC % vs actual battery energy. My proposed protocol...

I've noticed that when plugged in to a charger, the heater no longer blows warm air. However, enabling pre-conditioning does blow warm air while on charger. But then comes the question of when, especially if traveling. As an experiment, I waited until the L2 charging current reached ~16A, about...

So Monday I drove from Huntsville to Nashville via "Tennessee Truck Stop" and was able to look at the 'false' SOC %. I came to realize the SOC is a voltage metric, not a power, kWh, metric. What happens is in the 90-92% SOC range, below it, there are real kWh available. Above this threshold, the...

Now I can compare and contrast two routes, driving EV only, between Huntsville and Nashville: Via direct route, 30A, 208VAC, L2: (GOOD, CHEAP) Shortest distance, -30 mi., 114 mi Cheapest charging, $3 (or honor system) Longest time, +20 min, total 4hr 5 min Via detour to fast charger: (GOOD...

Introduction Having found the ShorePower, truck electrical stations midway between Huntsville AL and Nashville TN, I decided to do an all electric, round trip to measure times, distances, and costs. Huntsville To Nashville And Back Arrive Tennessean Truck Stop - 6:37 to 7:39, started with 70...

If your car still charges using the one that came with it, then the problem is probably in the new charger. We can do couple of simple tests to find out IF you have a volt-ohm meter. If you don't, Harbor Freight sells cheap but good enough ones for ~$5 and Walmart is close behind. Looking...

Here is the formal report: https://www.aaa.com/AAA/common/AAR/files/AAA-Electric-Vehicle-Range-Testing-Report.pdf Key Findings: 1. In isolation, hot and cold ambient temperatures resulted in modest reductions of driving range and equivalent fuel economy. Driving range and equivalent fuel...

Throw rugs? Bob Wilson

There are only 11 BMW i3 complaints recorded by the USA, NHTSA.GOV web site. None of them report unintended acceleration. Regardless, you should not drive a car that scares you. Mine is quite benign except when at a stop light with other cars. I reflexively floor the accelerator each time and...

Just drive faster . . . "Sorry officer, my car was making a funny noise that only goes away above 90 mph. That is why I was holding up Atlanta traffic." Bob Wilson

We are finding a similar pattern. If you get an error, use BimmerLink to clear the codes and let the car power-cycle, ~20 minutes off. Then try again. If there is a permanent error, it will be in the error log. If not, the car starts and runs normally. No need to make a service department "boat...

That fascinating aspect of BMW i3-REx software are how many features we are finding in the software. We are tuning the car by simply enable features that improve the car's utility at the risk of having them wiped out at the dealership. The irony is if the local Dealer offered me a menu of...

Well I bought the car in May 2016 and today is February 2019. The car clock was off by ~3 minutes. Ask me again in 3 years. Bob Wilson

Tonight I got the GPS, set the time, to work: Set the head unit to allow the option to be set. Set the body unit to allow the GPS to set the code. To verify it worked, my BMW clock was about a minute behind my cell phone time. So I enabled the option under the vehicle settings and the BMW i3...

So this morning leaving at 5:30 AM, the "drive train malfunction" light comes on. The pop-up says you can continue but need to take the car into the dealer (boat payment due?) Regardless, I run my errand and driving to the fast DC charger, enabled the REx that comes on and it works normally...

I had a similar problem with my BMW i3-REx. On the first visit to the dealer, they said L2 charging worked ... no problem found and did not take the car to the Fast DC, CCS charger downtown. So Saturday I drove up to Nashville and verified the same problem with the Brentwood YMCA EVgo station...

15/18.6 ~= 80.6% You are going to have to abuse the battery a lot more to get to a credible, 70%. Bob Wilson

Harbor Freight sells a wheel/tire balancer for $75 and I can use it as many times as I want. Bob Wilson

I asked them about coding the key fob for "preconditioning" and their response was unsatisfactory. My recommendation is use their support interface and ask specifics. I was unimpressed. Bob Wilson

Ok, the good news is we have two answers: In "expert mode", only use the options listed ... don't fiddle with other, override values unless someone has reported one that works. The "Werte 07" only works where it is listed as an option. "4TH" button is the only one that appears to work for key...