ubuntu-phone team mailing list archive

[Sam Bull <sam.hacking@xxxxxxxx>]

On Mon, 2017-01-16 at 14:41 +0100, Matthias Apitz wrote:
> On Monday, 16 January 2017 14:32:37 CET, Sam Bull <sam.hacking@sent.c
> om> 
> wrote:
> > Thanks for the article, however this appears to mostly match my
> > suggestion, such as not performing a full discharge:
> > 
> >     The smaller the discharge (low DoD), the longer the battery
> > will
> >     last.
> Wrong conclusion of the numbers. If you only discharge lets say the
> amount of 10%, then you can recharge some thousand times these 10%,
> which does not say anything about how long the batt will last.

Yes it does, look at the table under that section. It says the number
of recharge cycles before the battery reaches 70% capacacity is 300-500 
cycles at 100% discharge, 1200-1500 cycles at 50% discharge. That's 3-4 
times the number of recharge cycles while discharging at half the rate,
which gives a total improvement to life span by 1.5-2 times.
	Put another way, discharging the battery by 100% over 2 days
before recharging, would give you 600-1000 days of use before the
battery reached 70% capacity. Discharging the battery by 50% over 1 day
before recharging would give you 1200-1500 days of use before it
reached 70% capacity. In these examples, you are using the battery at
the same rate (50% per day), but choosing to recharge at different
points.

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