In a week, I will pay $9,000 to replace a 715 lb, 73-77% capacity , battery. I am replacing 700 / 3,800 = 18.4% of the car to get another 6 years and 150,000 miles. In effect, a lightly used Model 3 for $9,000. Bob Wilson
What is the remaining percentage of capacity in the original battery? When replacing it, do they take it to the service or leave it with you?
. Next month I will have finally saved enough $$$ without any stupid issues blowing holes in that savings to replace the battery in my '05-G2. $1,650 OTD. 3-yrs / 50,000 laps.
205 Ah from my battery when new. As of yesterday (28,674 miles) it was reporting 196.25 Ah. That's roughly 4% degradation so far. Looking at my ODB-II video I captured a year ago (13,697 miles), it stated the value as 198.5 Ah. That's a 2.25 Ah difference over 14,931 miles or 1.1% of the battery capacity.
If you have 73% capacity left, how much range do you gain with a new battery? Is it really necessary?
146 mi (indicated range) / 83% = 176 mi maximum range An expensive, $9,000 decision has many reasons: damaged thermal valve - this prematurely aged the battery pack long term battery curve shows increasing rate, loss of capacity efficiency - this car get between 4.0 to 5.2 miles per kWh which is the 3d highest on the EPA database affordable - to get a zero time battery EV for $9,000 is a steal! Tesla has reduced production of 2170 cells as they move to 4860s (3800 - 710) / 3800 = 81.3% - by weight of a GOOD car is worth keeping preservation of investment - what I have already In the car $1,200 - rock protecting windshield film with three impact points already mapped $8,000 - replacement cost of Full Self Driving, bought in 2019 for $6,000 $1,200 - 2" receiver tow hitch $1,100 - improved upper control arm linkages $1,000 - light weight wheels for efficiency $1,000 - light weight, 60,000 mi tires for efficiency $200 - aerodynamic, homemade pizza pan wheel covers I know it is popular to tout "range" but I am only interested in "efficiency". Efficiency is what drives my cost per mile. This car is too efficient to let a failing battery take it out of my hands. BTW, I've done this before. When I returned from Okinawa in 1973, I found my 1500 cc VW MicroBus engine was dead. In 10 days, I rebuilt it and it served three more years before I replaced it with a 500 cc motorcycle and Cherokee 140 airplane. Bob Wilson
