I would check the voltage at the charger when charging at 80 amps to see if there is a voltage drop at the charger. That could be one posible problem. If the voltage drop is with in a reasonable amount. then I would assume the problem is with the charger itself. There are other threads on 80 amp chargers overheating so you might do a search on them.
An EVSE is just a switch. Voltage drop will not cause it to overheat. I second the likelihood that your FCSP needs a software update…do you have WiFi coverage at the FCSP?
Don’t know. I’ll ck
Most will not need to charge at 80 Amps. If daily drive uses 90% or more of your battery and the truck sits less than 12 hours. 80A will likely be needed. The less you drive/longer it sits the lower you can run your charge levels. To put it in use of your lighting terms. Your truck can do 0-60 in 4.3 sec, but do you do that every time you accelerate?
There are only a handful of utilities that have demand charges for residential service. He’s in Florida, and presumably FPL. They don’t have residential demand charges the last time I checked.
Unless you're driving over 300 miles a day between all of your vehicles, you should be able to easily keep up. If you have a 12-hour charging window and don't mind switching the cable around between vehicles, you should be able to deliver around 9 kW to the vehicles every hour after losses. That's enough to charge an 80% depleted Lightning ER battery in 12 hours (~200 miles).
You will need to connect your 80 amp pro charger to an 100 amp breaker. A 200 amp service should be sufficient for most homes.
I seldom use my 80 amp ford charger because my solar system won't handle it. So normally if I need a charge I use my 32 amp charger and charge using my 10kw PowMr inverter connected to my 55 kwh solar batteries. But only on sunny days when my panels are outputting at least 7.2 kw that my charger draws. With 13 kw of solar panels that's usually not a problem and I still gave plenty to top off my solar battery bank.
