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To quote the old adage: A plugged in Tesla is a happy Tesla. But personally I just plug mine in at the end of the day.Just curious
In order to maximize battery longevity, should I charge every drive (i.e. multiple short trips in one day), or charge daily?
This assumes I'm charging to max but to 80 or 90%
Thanks!
So if charging to 80-90% provides you sufficient range for your daily driving needs, then you can avoid excess cycles on the pack and yet still not have to max charge.
Cycles in this instance means full cycles. Many small cycles increase life.
Cycles in this instance means full cycles. Many small cycles increase life.
This is true with my cell phone. And what I was alluding to.
I was not sure if the same is true with our complex battery of our car.
Cycles in this instance means full cycles. Many small cycles increase life.
No cycle, no matter how small, increases the life of a Li-ion.
No cycle, no matter how small, increases the life of a Li-ion. However, you can prevent as significant a decrease in cell life by carefully managing cycle depth versus number of cycles.
While shallower charge cycles are indeed better, the number of cycles is also a factor. Discharging/charging a Li-ion cell 50% once can be better than discharging/charging it 25% twice.
You can read about it here: Battery University. If you look at Table 2, approximately doubling the number of charge cycles is worse then simply discharging to twice the depth at just about each step. Obviously we know 100% and 0% are no-no's, but it holds for the ranges in between.
As the original poster suggested 80-90%, and most people don't drive down to zero, but often leave themselves a 20-30% buffer at the low end, I wouldn't be inclined to induce charging 2-3 times as much instead of a single discharge from 80% down to 30% or so...
This isn't necessarily the case. See my post above with some citations regarding charge cycles.
If you only ever do 10% depths of discharge, the battery will be able to handle the equivalent of 3750-4700 full discharge cycles before the capacity drops to 70%.
You are implying that you could do (85kWh x 10%) x 4,700 = 39,950 discharge/charge cycles at 10%.
What you are trying to describe isn't outlined in that article that I can see. Citation please?
You are implying that you could do (85kWh x 10%) x 4,700 = 39,950 discharge/charge cycles at 10%.
What you are trying to describe isn't outlined in that article that I can see. Citation please?
The shorter the discharge (low DoD), the longer the battery will last. If at all possible, avoid full discharges and charge the battery more often between uses.
yobigd20 is reading the chart correctly. You get an order of magnitude of battery life increase with much shallower DoD.
In the paragraph preceding your table:
The shorter the discharge (low DoD), the longer the battery will last. If at all possible, avoid full discharges and charge the battery more often between uses.