Charging @ home question.

Normal

Normal

Don't stress about 1%. It's hard to charge any battery to 100%. It's also not really healthy. Try not to do it often, and when you do, try to start driving as soon as possible so that it's not at a fully charged state for a longer period of time.

Thanks, I was just curious. I usually charge it up to 80%, but sometimes I leave it at 100% for the reason I mentioned about not having a garage.

Guarantee it was at one point 100% and it dropped, which is totally normal. If you leave it long enough, it’ll return to 100% which is the BMS doing its thing.

Thank you

Move the charging down and then back to 100% and it should start charging again. Back in the early days you’d get as much as 5% drift on the BMS measurement. They’re definitely more accurate now.

I asked that question on Tesla app. It said 99% is ok to remove charger. But recommends remaining attached to 100% so battery can finish cycle. It takes 10-15 minutes to totally complete.

The charging was completed around 3–4 am, and it never showed 100%, only 99%. The car is still plugged in and I don’t plan to drive today.

Totally normal. I charge mine to 80% and unusually the car will show 79-83% depending on temperature, length of charge and how long it sits there after the charge is complete.

I never charge passed 95 and never go below 10. Would recommend the same to preserve the battery.

What do you mean moving the charging down and back? Can you explain please

Do you ever need the 100% or is it just for peace of mind?

The desired percentage slider in the app

No, I don’t always need 100%. Only on certain occasions.

Sorry, wasn’t descriptive enough. Move the maximum charge percentage down. Wait for the car to register the change then back to desired amount.

Oh wow that makes sense. Thank you. I had that issue too.

Don't worry about it. At home that 1% will take wayyyyyy too long to care.

In that case, just head to the charger when the battery reaches 20% and only charge to 80%. Treat the other 20% as what you’ve already driven I live approximately 1% away from my local supercharger so I have my charge limit set to 51% at the charger and 80% at home. I always get home at 50%

Then you shouldn't let it sit at full capacity. Un needed stress on the battery. Only charge to 100% and when complete immediately start the trip you needed that extra range for, you can schedule charging in the app.

It’s normal. Even I have this issue. Not all the power is drawn from the cable unfortunately. But still some of it is drawn from the cable so it’s better to be in ABC ALWAYS BE CHARGING STATE.

You should never "store" (leave parked/undriven) an EV at 100%. Not good for the battery to have it completely loaded up like that for extended periods If you are letting it sit for more than a day charge to 80%. It will lose a few points per week (more if you leave sentry on), but you will have plenty of charge to at least get started on a long journey. When it gets to 20%, charge up to 80% again. This is pretty much best practice for Tesla Li-Ion batteries

Normal. My fiancés Y did the same thing thanksgiving day

Sometimes you need to charge it to 100 for battery balancing. Then drive.

I find mine has dropped 1% from my normal way lower upper threshold regularly by the time I drive it. I agree, it’s normal. I do have weird charging time limits from my power company, so that might prevent it from topping off that lost 1% where it wouldn’t otherwise be that way.

Yes, normal.

Check to see if you actually have a lithium ion battery or if you have Lithium Iron Phosphate (LFP) battery. If the latter, often found in certain “Standard Range” versions of Model 3 and Model Y — Tesla does recommend charging to 100% regularly (even daily) and to fully charge at least once a week. If you have the more common lithium-ion battery chemistry like Nickel Cobalt Aluminum (NCA) — typical for Long-Range or Performance versions — then you should avoid charging it to 100% except when needed, and then start your drive shortly after it reaches the 100% state of charge. For daily driving, Tesla recommends charging only to 80%.

My dude, I experienced your same situation and I found the answer out of trial and error. While charging my Tesla, I had Sentri turned on and it would charge completely to 80%; 3 or 4 hours after I would unplug it and drive it. It would go to 79% when I would start driving it. Then, I would charge it while the Sentri was turned off and BOOOOOM, it would stay at 80% while driving it first thing.

It’s an lfp battery. At 100% it boosts cell voltages to 3.8v. Not all cells hit this voltage. Some cells drift from each other. Voltage range is often 3.5-3.8v. At which points capacitors discharge the cell back to 3.6v. This usually takes an hour. This is how balancing works. Some cells fully charge first and are boosted and discharged to bring them closer to other cells. That’s why it sometimes takes a couple 100% charges to fully balance the pack.

When you need a 100% charge, set a schedule so it will automatically plan the charge to be done just in time. It's the sitting at 100% that hurts it.

Same. I keep it around 60 when just going to work and back and around 95 when i make the once-a-year vacation road trip

Hope that’s an LFP battery??

Normal. If you preheat the veh, it’ll start to charge and given a few minutes bump you back to 100

Don’t charge to 100

Yep, totally true!!