Charging rate dropped from 48A to 32A right after a software update — related?

Did checking the charge current limit in your settings actually turn out to be it, or was there something else going on for you?

update?

This can happen from a software update? I just got one and now I'm hesitant to plug in tonight.

Which vehicle model and what version did the OTA update to? Check if your charge current limit in the car menu got reset to a lower default — some updates revert that setting.

Yeah, this happened to a buddy's Model Y after an update last winter. First thing - check your charge current limit in the vehicle settings menu. Some OTA updates reset that back to a default 32A. Also check the EVSE settings if you have a smart unit - my Grizzl-e app got bumped to a lower amperage after a firmware update once. Easy fix in the settings, but easy to miss if you're not looking.

The 48A to 32A drop is more likely the EVSE re-running its breaker auto-detection than anything on the car side. Some units default to a 40A profile if they don't get a clear 60A signal during that check. Worth looking at the EVSE's own configuration menu, not just the car's charge slider — those are two separate settings.

48A requires a 60A breaker hardwired. If your setup has a 50A breaker, that update just saved you from a fire. Check the breaker handle number. If it's 50A, 32A is the correct 80% continuous limit. Many EVSEs ship with an unsafe default that OTA updates sometimes correct.

I didn't even know software updates could affect charging speed. I got a notification last week and declined it because I was worried about breaking something. Maybe I shouldn't have done that?

Same thing happened to me after an update last year. Check your charge current setting in the car menu - OTA updates sometimes reset it back to 32A. It's literally just a slider in the charging settings. No need to panic, it's not your hardware dying or anything. Took me 30 seconds to fix once I found the setting.

is there a changelog anywhere for what the update actually changed or do you just have to notice stuff like this yourself

My Grizzl-e did this too after a firmware update last spring — dropped straight from 48A to 32A. I was convinced something had fried until I finally found the charge current setting buried in the app, reset back to default. Slid it back up in about thirty seconds and felt silly for panicking all day.

Ha, same story with my JuiceBox last fall. One firmware update and it defaulted down to 32A from 48A. Took me embarrassingly long to realize it was just the app's charge current setting reverting — once I found it, fixing it was a ten-second slider job.

Sounds like the update reset a setting. Check your charge current setting.

Happened on my ChargePoint after a firmware update. Settings got reset to default 32A. Check vehicle charge current limit in the menu - OTA updates sometimes revert it. Easy fix, just slide it back up if your breaker can handle it.

Check your car's charge current limit in settings — OTAs sometimes reset that to 32A. Worth checking your breaker size too before sliding it back up to 48A.

Is this a thing that only happens with certain charger brands, or can any of them get reset back down by an update like that?

48A continuous requires a 60A breaker per NEC 625.41 — 125% of 48A is 60A, and the code only allows 80% continuous loading. Pull the deadfront and read the breaker handle. If it says 50, the update corrected an overloaded setup — you were running 96% of rated capacity instead of the allowed 80%. If it says 60, the update just reset the EVSE's own configuration, and you can put it back to 48A in the app.

update?

This happened to me after a firmware update last winter too. Check your vehicle's charge current setting in the menu — OTA updates love resetting that slider back to 32A. Ten seconds to fix if your breaker can handle it.

The drop from 48A to 32A after an OTA update is most likely the EVSE re-running its installation current limit detection. Many units auto-detect breaker sizing on boot and default to 32A if they don't see a 60A breaker signal. Check your unit's internal configuration menu, not just the vehicle's charge slider - the EVSE itself may have reverted to a 40A breaker profile (32A continuous = 80% of 40A). That's separate from whatever the car's charge current limit is set to.

Does it actually charge noticeably slower at 32A vs 48A day-to-day, or is it mostly just a number that looks alarming?

Check your car's charge current limit in the settings menu. OTA updates sometimes reset it to 32A — that's all it is, a slider. Ten seconds to slide back up if your breaker can handle it. Not your hardware dying.

What version number was the OTA update that triggered this? And did the release notes mention any changes to the EVSE's breaker configuration profile, or was that buried in the firmware changelog with no user-facing documentation?

Same thing happened after an update on my buddy's Model Y. Check your charge current limit in the vehicle settings menu - OTA updates sometimes reset it to 32A. Easy fix.

First year I had my Level 2, I left the connector sitting on the ground where the sprinkler hit it every morning. Took me a whole day to figure out why it stopped working right - had to dry it out completely. Now I hang it up every single time. Learned the hard way that these things have quirks. Check your car's charge current slider in the settings menu before you panic - OTA updates love resetting that to 32A for no good reason.

Mine's hardwired on a 50A breaker. When it first happens, don't start yanking cables and blaming the charger — nine times out of ten it's just a settings reset from the update, not a hardware failure.

Yeah, that's basically the sprinkler lesson all over again for me — quirky little things that don't mean the unit's dying. Check the charge current slider in the settings before you panic; OTA updates reset that to 32A more than they should.

Is 32A actually a safe default for most home setups, or is that just as arbitrary as the 48A was?

Had this same issue after an OTA last winter. Charge current slider in the vehicle settings menu got reset to 32A. Took 30 seconds to slide it back to 48A. Check your breaker size first - if it's 50A, 32A is actually the safe limit per NEC 625.41. Not a hardware failure.

Had the same 48A to 32A drop on my ChargePoint after an update last year. Checked the EVSE's internal config menu, not just the car's charge slider. Unit had reverted its breaker profile from 60A to 40A. Fixed it in the EVSE settings in under a minute.

Did the manufacturer provide a changelog or release notes for that OTA update? Curious whether the firmware silently reconfigured the EVSE's internal breaker profile from 60A to 40A, or if this was a documented safety patch for units installed on 50A breakers. Without seeing the release notes, we're just guessing whether this was intentional or a settings wipe.

Did anyone actually check their breaker? I still don't know what mine is.

So the update might have actually prevented a fire? I thought my charger was dying, but now I'm not sure if I should be relieved or more worried. We don't deal with this stuff where I garage my car.

Same thing happened on my EVSE. Check the car's charge current limit in settings. OTA updates sometimes reset it back to 32A. Easy fix.

Check your car's charge current limit in settings first. Sometimes updates reset that to a lower default.