[Teknoman117]

As a semi-related side question, does anyone have good numbers on how plug-in hybrid batteries deteriorate over time? I bought a (2022) last March and I do a full charge/discharge cycle on it nearly every other day. I've averaged half my miles on electric since buying it...

I haven't noticed any range loss ... yet. I know on mine the physical capacity is 14.4 kWh but it'll only let me use a band in the middle (?) of ~11 kWh (it eats 12 kWh charging and I'm assuming a 90% charging efficiency) (I also don't know if the chargepoint chargers report delivered or stored energy). This is all what I'm presuming to be enforcing no full charge/discharge cycles to lengthen the battery life.

[kbuck]

Assuming you're using Chargepoint level 2 chargers (3.3/6.6kW AC, not DC fast chargers), they are reporting energy delivered. There is no data channel to report energy stored; only level 3 (DC fast charge) charging ports establish a data connection.

[rnk]

Varies a huge amount. I have an 8 year old tesla s 85kwh battery with 65k miles on it, known to be above average, 5 miles lost from ~272 range. Tesla has the best results for long life, it's basic matter of heating and cooling the battery. Cars without that have significant battery degredation when supercharging/fast charging because the battery gets hot. The worst is the leaf, almost every recent car except that has batt. mgmg. system. You also heat and cool battery when driving.

[abracadaniel]

I've read that nearly all range reduction occurs in the first year. If you're seeing ~80% usable energy out of it, then it's probably keeping you between 10% to 90% which is probably fine. Another major factor is battery cooling. Some only air cool the batteries, and in a hot climate they will die much quicker that way. It would be nice if the details were made available as not all manufacturers will use the same limits. Even better would be if it were configurable to some degree.

[jungturk]

Not a plug-in hybrid, and not data, but I'm down 5-10% total range after 80k miles over 6 years in a plug-in (full) electric vehicle.

[vondur]

What car do you own? I’ve wondered about the Nissan leaf which apparently has no active cooling on the batteries vs others which do.

[coryrc]

Only the early model years lack active cooling.