ljwobker
Well-known member
This is probably a more generic question to battery technology than the LEAF, but here goes. If this is answered somewhere else a pointer would be great - I couldn't figure out what to search on.
I'm trying to figure out if either of these cases gives meaningfully different battery life... (somewhat simplified math, I know the charging times aren't exactly right but that's not the point so ignore it)
case 1: you come home at 8pm with the battery at 20%. You plug it in, and by midnight it's charged to 100%. It spends 8 hours charged at 100%, before you drive it off at 8am. You've had one "80% cycle".
case 2: you come home at 8pm with the battery at 20%. You plug it in but with a timer, so by 11pm it's charged to 80%. The car then spends 8 hours charged at 80%, and you re-start the charge at 7am and by 8am it's charged to 100%. In this case, you have still gone through the same cycle - one trip from 20%->100% charge. But the difference is that you've only spent 1 hour above 80%, instead of 8 hours in case 1.
So the real question is whether case 2 provides meaningfully longer battery life than case 1. Does anyone have real data on this behavior?
I'm trying to figure out if either of these cases gives meaningfully different battery life... (somewhat simplified math, I know the charging times aren't exactly right but that's not the point so ignore it)
case 1: you come home at 8pm with the battery at 20%. You plug it in, and by midnight it's charged to 100%. It spends 8 hours charged at 100%, before you drive it off at 8am. You've had one "80% cycle".
case 2: you come home at 8pm with the battery at 20%. You plug it in but with a timer, so by 11pm it's charged to 80%. The car then spends 8 hours charged at 80%, and you re-start the charge at 7am and by 8am it's charged to 100%. In this case, you have still gone through the same cycle - one trip from 20%->100% charge. But the difference is that you've only spent 1 hour above 80%, instead of 8 hours in case 1.
So the real question is whether case 2 provides meaningfully longer battery life than case 1. Does anyone have real data on this behavior?