Not to be a doomsayer but.... it could also be a high resistance connection(s) somewhere in your house wiring, outlet or mobile/wall connector. I'm sure you'll be keeping an eye on the voltage...Likely just high demand in the neighborhood or something? I was charging mid day vs when I usually charge in the evening. Back up to 237 right now (530pm)
What is the voltage reading when the charge first starts (while it still reads 1 or 2 amps)? If it's also lower than normal, I'd say it's something in the neighborhood. If it's normal (238-240+) and then dipping down to 231, I'd be concerned.
Another thing you can do is feel the plug and cord (and outlet if a mobile connector) after it's been charging a while for unusual heat. You can also look inside the outlet box, (or inside the wall connector if that's what you have) to see if there are signs of excess heat (charring or melting).
In the end, 231v is within spec for a 240v circuit, so there may not be anything wrong at all. However, since it's a sudden change, a little troubleshooting is in order.
Sounds perfectly normal. The momentary 227v was probably just a weird averaging thing right when the power was enabled. Unless you detect unusual heat or have some other symptoms, I wouldn't worry.Hey there. I just plugged in for another charge session. Right when I plugged in it was 227v for one second then jumped to 242v at 3 mph charge rate. Once it got to normal charge speed it went from 240 to 236 for a minute and has now settled at 237v
Any additional thoughts based on this?
Anything between 220 and 250 is normal, especially if your service drop is aerial. Typical aerial drop for 200 amp service is only 2 gauge, the wire is smaller and lighter, but is cooled with ambient air. But it will have considerable voltage drop. If your utility service is buried, the wire will be much larger, like 000, or maybe 0000, because it cannot dissipate the heat very well inside a pipe, therefore much less voltage drop from the larger cable.Hey all,
Apologies if this has been asked previously but I couldn’t find the exact same issue anywhere.
Today I noticed that my model 3 is showing 231V while charging. I charge it at 30/32 Amps and usually see 237-240V. Any ideas why so much voltage sag?