Wow. 88 kWh. Can that be right?
Yes, it is.
I'm betting a very hot day & a very hot battery. Even if you're not charging until
later (when rates are low), should probably at least cool down the battery (instead of letting it sit there
hot).
No. It is not caused by a hot battery :smile:
I've seen this before on the roadsterVDS via the
tattler charge reports. What I believe is happening is that the 88kWh and 15h:11m comes from two concatenated charges
but with a drive in between. So the total energy used to charge is correct, but it represents
two charges. Here is an example (as logged by the
tattler):
Notice in the above picture, I finished charging: 243 miles, 96%, 41kWh 8:20 hrs used. I then drove the car about 80 miles (not shown). I started a charge at 3:22pm. Notice the battery has dropped to 67% and 148 miles (from the 80 mile drive). Five minutes later, I sent the "charge?" command to the
tattler and the roadster reported 42Kw (41kwh from the previous charge and 1kwh from current charge. 8:20+5min). Had the roadster reset the count at the start of the charge, it would have reported "1kwh used, 0:05hrs".
So the accounting of charge energy of the VDS appears to be correct, but some of charge history records are the concatenation of two charge sessions with a drive in between.
So if the OP adds up all charging energy reported by the VDS (including the 88kwh) it would correctly match the reading of a wall kWh meter.
As far as the OT, I drove 222 miles from Goleta to San Diego on 95% charge. IIRC, the battery temp was 39C and the energy required to recharge was about 65kwh.