HV Battery stats on old Tesla Model 3

[@fahmihermawan4947]

May I know what tools you use and what applications you use?

[@galaxiedance3135]

I could be wrong but I think a slower charge is always better for a battery. Sure fast is convenient when you're going somewhere but for people who can charge at home at a slower speed... That would be the best.

[@ryen7512]

Absolutely. I do what I can to slow charge but I live in an apartment so it's not always possible. To be fair though supercharging results in slightly more degradation but it's not necessarily that bad. There's some very high mileage Teslas that have been almost exclusively fast charged.

[@marcusbiller867]

Did you manage to get a copy of Scan My Tesla at 100% without charging? 4.195V at 67kWh while 77.8kWh new doesn't seem right. There must be something off with the SMT app or the BMS is not reporting the correct numbers. Once you disconnect the cell voltage should drop to what they have. If you can charge again to 100% and see what that number is that would be great, thank you!

[@ryen7512]

I did not get the readings after I unplugged that's a great idea for next time. As for the 77 kWh that's never been the case. The most I ever got out of it when new was about 72 to 74. That's similar to what other people have gotten as well. The 67 is about what I was expecting based on past tests. This is in line with about an 8% degradation which is expected at this age.

[@joshuahuang07]

what's your lifetime wh/mi? I get around 290 driving normally on 20's

[@ryen7512]

I don't have a lifetime efficiency trip but since I got new tires 4,300 miles ago it's at 270 wh/mi.

[@darrenorange2982]

Looking like module 17 and 18 have some issues?

[@ryen7512]

I think it's premature to conclude that, but certainly something to keep an eye on.