While charging 110v overnight, I actually lost miles added instead of adding miles :(

[Lightning Rod]

Hello fellow Lightning Lovers. We stay a weekend at these beautiful state park cabins way out in the woods, several times a year.

I always plug in my Ford Mobile Charger at 110v overnight and i usually add about 30 miles or so back into the battery overnight.

Last night before we went to bed, I checked and I had added 8 miles and 4.8 kwh to the battery. When I woke up about 7 hours later, I was expecting to see mid to upper 20s miles added. Instead I saw that only 2 miles were added in about 13 hours of charging!

I went from 73 to 82 SOC, but only added 2 miles (less than the 8 miles that was added before I went to sleep. )

So I'm figuring that going from 45 degrees F last night to 34 degrees this morning, is the reason that I went backwards on my charging progress. What do you guys think about this?

Here's what Google AI says about this...




Losing miles on the Ford F-150 Lightning Guess-O-Meter (GOM) while plugged into a 110V (Level 1) charger overnight is a common occurrence, usually caused by the energy required to manage battery temperature in cold conditions. A 110V charger typically only adds about 2 miles of range per hour, which is often insufficient to overcome the power consumption of the battery heater or other vehicle systems while parked.
Here is a breakdown of why this happens and what to watch for:

Primary Causes for "Lost" Miles

• Battery Heating/Conditioning: In cold weather, the Lightning uses electricity to warm the battery to an optimal temperature for charging. If the outside temperature is low enough, the power spent on heating can exceed the energy being added by the 110V charger, resulting in a net loss of range, even while "plugged in".
• GOM Recalculation: The GOM (Guess-O-Meter) is not a gas gauge; it estimates range based on recent driving, outside temperature, and battery efficiency. If you drove inefficiently the day before, or if the temperature dropped significantly, the truck will revise your range estimate downward in the morning.
• "Top Off" Inefficiency: The 110V charger is very inefficient for maintaining a high state of charge in cold, as the truck may run systems that consume more power than the 110V provides.

Tips for 110V Charging

• Trust the Percentage, Not the Miles: Focus on the battery percentage (e.g., 75% to 78%) rather than the miles displayed, as the GOM can be highly variable.

Sponsored

 

[K6CCC]

Guess-O-Meter is just that, a guess. The 73 to 82% sounds about right with an ER battery.

 

[TaxmanHog]

So I'm figuring that going from 45 degrees F last night to 34 degrees this morning, is the reason that I went backwards on my charging progress. What do you guys think about this?

Sponsored