Pinout of the 16's 85whr battery?

[Charlie_6]

This is just my 2 cents, not a “right or wrong” argument, agree to disagree

@James3

My understanding is that going over that limit damages the battery, so if the battery itself wishes to lower it, it is probably best to comply with it.

I think it’s a bit better if the battery manufacturers label the realistic Limited Charging Voltage instead of labeling a higher voltage that is only available on the first 100-ish cycles. Most if not all laptop from more than a decade ago did the actual sustained voltage, the Limited Charging Voltage is the voltage from the beginning to 1000 cycle and beyond.

@James3

I only charge to 80% anyway, to increase battery life, so it makes no difference to me.

The meaning or purpose of charging to 80% increase battery life is to make the runtime available longer when max endurance is needed as you can always charge to 100% on demand. If the upper capacity is blocked by BMS for the sake of preserving the battery life doing so would be meaningless.

@Adrian_Joachim

Apparently someone did XD

More than one, one 61Wh user and a 55Wh user, probably more as many users aren’t active in the forum.

@Adrian_Joachim

You can’t really math it like that, since the capacity per v is not linear and you can’t go to 0. Though in all the batteries I have seen the capacity per V dropped dramatically above 3.8v per cell.

Here’s an example of an LCO battery(probably made by ATL) used on portable devices

@Adrian_Joachim

think that has more to do with the industry understanding the batteries better. That can however cause them to use less battery for the same thing. Better awareness of how they work is nice, using less battery run harder for the same thing is less nice.

This. I have a 8 y/o phone that use ATL battery, the same battery brand used in FL, it doesn’t lower the voltage even after 1200~1600-ish cycles and it’s durable as heck. The cycle is probably 1800~2000 and the battery health is still at 72% to 75%.
For many older batteries, the aging won’t accelerate even after 1000 cycles, in fact, quite the opposite, the aging slowed down after 800-ish cycles. If newer batteries have to reduce voltage to reduce the aging acceleration, the voltage is too high to begin with.
In conclusion, older batteries’ initial charging voltage is sustained voltage is the Limited Charging Voltage labeled. Recently, battery manufacturers boost the battery voltage to give better initial runtime to gain a competitive edge. However, this is not sustainable so they have to dial back after a certain cycle, to the “original” voltage. Since the newer capacity is calibrated using the “instantaneous” voltage and this voltage is labeled as Limited Charging Voltage. For a given chemistry, using a newer BMS will yield a higher labeled capacity/energy density.