larryh

The lCE will continue to run after engine braking until warmed up. Regenerative braking no longer works. It has to use the friction brakes so it will feel different.

The 3G modem no longer reports EV range for me. The EV range reported at MFM is always 0.

Last weekend my car also failed to update properly with MFM. I ended up with a dead 12 V battery on Tuesday morning. Maybe you want to pull the fuse and reset the TCU and hopefully the car will begin communicating again with MFM. Is it possible that the car is attempting to charge the 12 V battery rather than the HVB? Is the TCU draining the 12 V battery?

I noted sparks every time I connected/disconnected the 12 V battery. The lights and other things were attempting to drawing significant current from the battery, but the battery couldn't provide enough power to illuminate the lights or start the car. There must have been some other significant power drain. If hydrogen could be present, then there would be a problem connecting/disconnecting the battery and one needs to be careful doing so. The car will eventually recalibrate the SOC calculation of the 12 V battery after the car has been turned off for a while. At the moment, it computes the SOC of the 12 V battery to be 100%.

I don't know why it would make a difference where it is connected. I connected it to the battery terminals in the trunk. I had disconnected the battery hoping the battery would recover enough to start the car. So I was in the trunk. There was a large drain on the battery everytime I attempted to connect the terminals. The car needed to be jump started. When fully charged, I measure 12.25 V across the terminals of the Powerall.

The Deluxe: http://thepowerall.com/index.php?route=product/product&path=304_305&product_id=93 It was $66 through Amazon Prime with free 2-hour delivery. Otherwise, it is $77 with 2-day shipping. Strange.

You need and OBD II scanner and the ForScan application running on at tablet PC or smart phone to read the SOC from the car. It currently reads 80%. You can also measure the 12 battery voltage with all the doors closed and everything powered down. It reads 13.2 V at the moment. So it is fully charged.

My 12 V battery was completely drained this morning. So I ordered a $66 Powerall portable battery charger from Amazon using Prime Now and jump started the car. It arrived within 2 hours as advertised. I had to use the key to open the door and fold down the back seat and use a weed puller to open the trunk. Looking back at my logs, the SOC of the 12 V battery was fine for the past week, around 85% (which is normal). I note that in the previous two days, there was excessive 12 V battery drain/charging while the car was on and running (more than 10x the normal amount). There was no significant drain while the car was sleeping or off. Also, the car was generating the warning tone when the car was started, but no indicator lights came on. Something was wrong. Yesterday morning the SOC was 77%. This morning when I jump started it, it was 18%. Something had failed to turn off last night. I suspect it was the TCU. The TCU no longer works at various locations. AT&T must have ceased 2G operations in those areas. When I arrive home, where 2G still works, the car uploads all the previous trips that it couldn't upload while I was away from home. Last weekend, it failed to upload the previous days data when I returned home from a trip. I suspect the 2G outages are confusing the TCU. I will have to monitor what the car is doing more carefully in the future to determine what is not turning off. I have the car currently plugged in so that it can charge the 12V battery. It charges the 12 V while charging the HVB and continues to charge the 12 V after the HVB has finished. SOC so far is back up to 72%.

Others have reported that Ford is coming out with a new TCU to replace the old 2G TCU. The replacement is supposed to be free. If the dealer had waited to replace the TCU, you might have been able to replace it without cost. If the dealer replaced the TCU with another 2G TCU, that is really dumb. ATT is dropping its 2G network by the end of this year. It is going to have to be replaced again after ATT completely drops its support for 2G.

MyFordMobile.com logs HVB charging. It indicates the SOC of the HVB after it has been charged. You could show that to the dealer.

You want to delay charging until the last possible minute and then use the car immediately after charging completes. Charging the car any sooner than necessary will result in greater HVB degradation. Ideally, you would want to use a 240 V charger and start charging the car at 5:30 am so the car is ready at 7:30 am.

The data is available at MyFordMobile.com.

This is from Ford's web site for the 2017 Fusion Energi: **MyFord Mobile subscription complimentary for five years from the vehicle sale date as recorded by the dealer. Subscription fees apply after five years. MyFord Mobile requires a compatible 2.5G independent cellular network. Evolving technology and cellular networks may affect future availability and functionality. Text and data rates apply to usage.

The temperature gauge shows the temperature inside the heater core--not the engine block temperature. You can see the actual value of the temperature in the heater core using ET mode.

The amount of energy stored in the battery should be the same regardless of what charger is used. The main factors affect energy capacity of the battery are temperature and degradation. A hot battery stores more energy than a cold one.