I bought a 2015 S in January 2018 with these leafspy stats:
SOH 91.68%
HX 84.77%
AHr 56.93
Odo 34,600
4 quick charges & 2661 L1/L2
15mV voltage range
This was at a battery temp around 25F and SOC 74.6%
I was extremely happy with this purchase considering I was still above 90% and I got a decent price, and seemed typical for 2015's that everyone speaks highly of battery-wise.
However, now a year and a bit later:
SOH 84.61%
HX 72.94%
AHr 52.54
Odo 37,200
4 quick charges & 2736 L1/L2
10mV voltage range
Battery temp around 53F and SOC 67.6%
My commute is only about 5 miles round trip. I only charge once or twice (in winter) a week or so, to limit amount of time the battery stays at high charge %. I do charge to 100% to let it balance, but only the night before I know I'll drive it to take the top off the charge so it doesn't sit above 95% for more than a day ever.
So it lost 8% over 3 years of a lease charging about 2.5x a day and 34K miles, but then I lose another 7% over 75 charge cycles and 2600 miles.
Advice at this point? I have no chademo chargers in my city. Currently I always charge on L1 since running 240 to my garage would be incredibly expensive because of my house layout. The options that occur to me:
1) Start charging to 100% every night (even though that's counter-intuitive) but that's most likely what was being done for the first 3 years with 2661 charge cycles.
2) Get a proper EVSE even at L1 with charge timer and limit it to 1-1.5 hours each night, and try to hold battery charge around 30-40% range as some have suggested, though I think this is more just tricking the BMS rather than helping protect battery life.
3) Try to get a deep discharge cycle (<20%) in followed by the fastest (6.6KW in this case) charge I can find to see if that helps, maybe try to do this once or twice a month for a while.
4) I rarely run below 40%, maybe I have a weak cell that the BMS is picking up on, and if I did even a single deep discharge that would present itself more clearly in the leafspy report?
5) Just accept I'm going to lose 6-7% per year now for some reason, I'll still be able to get around town (15 miles max in a day ever I think) for another 5+ years even at this rate though I was hoping the car would have some value in 4-5 years and not be completely worthless.
Any advice is appreciated, thanks! I do love this car but I'm obviously doing something wrong. I'd like to try to correct things before I lose the first bar if possible.
SOH 91.68%
HX 84.77%
AHr 56.93
Odo 34,600
4 quick charges & 2661 L1/L2
15mV voltage range
This was at a battery temp around 25F and SOC 74.6%
I was extremely happy with this purchase considering I was still above 90% and I got a decent price, and seemed typical for 2015's that everyone speaks highly of battery-wise.
However, now a year and a bit later:
SOH 84.61%
HX 72.94%
AHr 52.54
Odo 37,200
4 quick charges & 2736 L1/L2
10mV voltage range
Battery temp around 53F and SOC 67.6%
My commute is only about 5 miles round trip. I only charge once or twice (in winter) a week or so, to limit amount of time the battery stays at high charge %. I do charge to 100% to let it balance, but only the night before I know I'll drive it to take the top off the charge so it doesn't sit above 95% for more than a day ever.
So it lost 8% over 3 years of a lease charging about 2.5x a day and 34K miles, but then I lose another 7% over 75 charge cycles and 2600 miles.
Advice at this point? I have no chademo chargers in my city. Currently I always charge on L1 since running 240 to my garage would be incredibly expensive because of my house layout. The options that occur to me:
1) Start charging to 100% every night (even though that's counter-intuitive) but that's most likely what was being done for the first 3 years with 2661 charge cycles.
2) Get a proper EVSE even at L1 with charge timer and limit it to 1-1.5 hours each night, and try to hold battery charge around 30-40% range as some have suggested, though I think this is more just tricking the BMS rather than helping protect battery life.
3) Try to get a deep discharge cycle (<20%) in followed by the fastest (6.6KW in this case) charge I can find to see if that helps, maybe try to do this once or twice a month for a while.
4) I rarely run below 40%, maybe I have a weak cell that the BMS is picking up on, and if I did even a single deep discharge that would present itself more clearly in the leafspy report?
5) Just accept I'm going to lose 6-7% per year now for some reason, I'll still be able to get around town (15 miles max in a day ever I think) for another 5+ years even at this rate though I was hoping the car would have some value in 4-5 years and not be completely worthless.
Any advice is appreciated, thanks! I do love this car but I'm obviously doing something wrong. I'd like to try to correct things before I lose the first bar if possible.