<s>
Batterygate	B-Algorithm
is	O
a	O
term	O
used	O
to	O
describe	O
deliberate	O
processor	O
slowdowns	O
on	O
Apple	O
's	O
iPhones	B-Application
,	O
in	O
order	O
to	O
prevent	O
handsets	O
with	O
degraded	O
batteries	O
shutting	O
down	O
when	O
under	O
high	O
load	O
.	O
</s>
<s>
Critics	O
argued	O
the	O
slowdown	O
amounted	O
to	O
planned	O
obsolescence	O
,	O
however	O
this	O
may	O
stem	O
from	O
the	O
common	O
misconception	O
that	O
all	O
older	O
iPhones	B-Application
were	O
slowed	O
down	O
.	O
</s>
<s>
Apple	O
has	O
since	O
updated	O
iOS	B-Application
to	O
provide	O
notifications	O
and	O
settings	O
to	O
allow	O
users	O
visibility	O
of	O
the	O
throttling	B-General_Concept
and	O
even	O
the	O
ability	O
to	O
disable	O
the	O
throttling	B-General_Concept
if	O
the	O
user	O
prefers	O
to	O
have	O
their	O
phone	O
reboot	O
under	O
high	O
load	O
.	O
</s>
<s>
The	O
controversy	O
first	O
emerged	O
in	O
late-2016	O
,	O
when	O
it	O
was	O
reported	O
that	O
since	O
a	O
recent	O
iOS	B-Application
update	O
,	O
some	O
iPhone	B-Application
handsets	O
had	O
begun	O
to	O
experience	O
unexpected	O
shutdowns	O
when	O
their	O
battery	O
capacity	O
reached	O
30%	O
,	O
caused	O
by	O
drops	O
in	O
the	O
battery	O
's	O
terminal	O
voltage	O
below	O
a	O
threshold	O
of	O
around	O
three	O
volts	O
required	O
for	O
operation	O
of	O
the	O
device	O
.	O
</s>
<s>
There	O
were	O
also	O
reports	O
of	O
device	O
instability	O
from	O
some	O
users	O
on	O
iPhone	B-Operating_System
6	I-Operating_System
and	O
iPhone	B-Operating_System
6S	I-Operating_System
models	O
,	O
including	O
situations	O
where	O
the	O
device	O
would	O
unexpectedly	O
shut	O
down	O
once	O
its	O
battery	O
capacity	O
reached	O
30%	O
(	O
with	O
one	O
user	O
having	O
described	O
the	O
battery	O
percentage	O
as	O
unexpectedly	O
jumping	O
down	O
to	O
1%	O
before	O
doing	O
so	O
,	O
but	O
still	O
appearing	O
as	O
30%	O
after	O
the	O
device	O
was	O
plugged	O
in	O
and	O
rebooted	O
)	O
.	O
</s>
<s>
Apple	O
confirmed	O
in	O
December	O
2016	O
that	O
some	O
iPhone	B-Operating_System
6S	I-Operating_System
models	O
manufactured	O
in	O
September	O
and	O
October	O
2015	O
had	O
suffered	O
from	O
a	O
battery	O
manufacturing	O
defect	O
.	O
</s>
<s>
In	O
regards	O
to	O
other	O
instances	O
of	O
shutdowns	O
,	O
Apple	O
stated	O
that	O
it	O
would	O
include	O
an	O
"	O
additional	O
diagnostics	O
capability	O
"	O
in	O
the	O
next	O
iOS	B-Application
update	O
so	O
that	O
it	O
could	O
"	O
improve	O
algorithms	O
for	O
managing	O
battery	O
performance	O
and	O
shutdown	O
operations	O
"	O
in	O
future	O
versions	O
.	O
</s>
<s>
With	O
the	O
release	O
of	O
iOS	O
10.2.1	O
in	O
February	O
2017	O
,	O
Apple	O
stated	O
that	O
it	O
had	O
reduced	O
unexpected	O
shutdowns	O
on	O
iPhone	B-Operating_System
6S	I-Operating_System
by	O
"	O
more	O
than	O
80%	O
"	O
,	O
and	O
by	O
"	O
over	O
70%	O
"	O
on	O
iPhone	B-Operating_System
6	I-Operating_System
.	O
</s>
<s>
In	O
December	O
2017	O
,	O
the	O
developers	O
of	O
the	O
benchmarking	O
tool	O
Geekbench	B-Application
issued	O
a	O
report	O
which	O
showed	O
a	O
pattern	O
of	O
performance	O
degradation	O
on	O
iPhone	B-Operating_System
6	I-Operating_System
models	O
upgraded	O
past	O
10.2.1	O
,	O
and	O
iPhone	B-Application
7	I-Application
models	O
upgraded	O
past	O
iOS	O
11.2	O
.	O
</s>
<s>
There	O
had	O
been	O
anecdotal	O
evidence	O
in	O
the	O
past	O
that	O
Apple	O
had	O
intentionally	O
degraded	O
the	O
performance	O
of	O
older	O
iPhone	B-Application
models	O
on	O
newer	O
versions	O
of	O
iOS	B-Application
as	O
a	O
form	O
of	O
planned	O
obsolescence	O
,	O
to	O
encourage	O
sales	O
of	O
newer	O
models	O
.	O
</s>
<s>
In	O
response	O
to	O
these	O
reports	O
,	O
Apple	O
issued	O
a	O
statement	O
to	O
CNET	O
,	O
confirming	O
that	O
it	O
had	O
implemented	O
software	O
performance	O
controls	O
based	O
on	O
battery	O
health	O
on	O
older	O
iPhone	B-Application
devices	O
,	O
in	O
order	O
to	O
preserve	O
system	O
stability	O
and	O
prevent	O
unexpected	O
shutdowns	O
.	O
</s>
<s>
Soon	O
afterward	O
,	O
Apple	O
issued	O
a	O
formal	O
apology	O
,	O
admitting	O
that	O
it	O
initially	O
believed	O
that	O
the	O
issues	O
were	O
caused	O
by	O
iOS	B-Application
bugs	O
and	O
"	O
normal	O
,	O
temporary	O
"	O
performance	O
decreases	O
following	O
an	O
update	O
,	O
but	O
that	O
"	O
continued	O
chemical	O
aging	O
"	O
of	O
batteries	O
in	O
older	O
iPhone	B-Application
devices	O
was	O
also	O
a	O
factor	O
.	O
</s>
<s>
Apple	O
stated	O
that	O
replacing	O
the	O
device	O
's	O
battery	O
would	O
restore	O
full	O
performance	O
,	O
and	O
also	O
announced	O
that	O
it	O
would	O
offer	O
a	O
US$50	O
discount	O
(	O
from	O
$79	O
to	O
$29	O
)	O
on	O
battery	O
replacements	O
for	O
iPhone	B-Operating_System
6	I-Operating_System
and	O
6S	O
from	O
January	O
through	O
December	O
2018	O
,	O
and	O
that	O
it	O
would	O
include	O
more	O
prominent	O
battery	O
health	O
information	O
in	O
later	O
versions	O
of	O
iOS	B-Application
.	O
</s>
<s>
iOS	B-Operating_System
11.3	I-Operating_System
added	O
the	O
promised	O
battery	O
health	O
information	O
,	O
and	O
also	O
allows	O
these	O
performance	O
controls	O
to	O
be	O
disabled	O
.	O
</s>
<s>
Beginning	O
with	O
the	O
iPhone	B-Operating_System
11	I-Operating_System
,	O
Apple	O
introduced	O
a	O
new	O
performance	O
management	O
system	O
intended	O
to	O
"	O
reduce	O
performance	O
impacts	O
from	O
battery	O
aging	O
"	O
.	O
</s>
<s>
A	O
Chicago	O
lawyer	O
who	O
proposed	O
a	O
$5	O
million	O
class-action	O
considered	O
the	O
battery	O
discount	O
"	O
an	O
insult	O
to	O
loyal	O
customers	O
who	O
consistently	O
and	O
with	O
much	O
fanfare	O
have	O
flocked	O
to	O
Apple	O
stores	O
worldwide	O
to	O
purchase	O
every	O
version	O
of	O
the	O
iPhone.	O
"	O
</s>
<s>
In	O
January	O
2019	O
,	O
Apple	O
CEO	O
Tim	O
Cook	O
stated	O
that	O
the	O
company	O
had	O
cut	O
its	O
earnings	O
projections	O
due	O
to	O
"	O
fewer	O
iPhone	B-Application
upgrades	O
than	O
we	O
had	O
anticipated	O
"	O
,	O
as	O
well	O
as	O
lower-than-anticipated	O
revenue	O
in	O
markets	O
such	O
as	O
China	O
.	O
</s>
<s>
On	O
February	O
28	O
,	O
2020	O
,	O
Apple	O
agreed	O
to	O
a	O
$500	O
million	O
settlement	O
in	O
a	O
California	O
court	O
,	O
under	O
which	O
it	O
plans	O
to	O
pay	O
at	O
least	O
$25	O
to	O
all	O
U.S.	O
residents	O
who	O
had	O
purchased	O
an	O
iPhone	B-Operating_System
6	I-Operating_System
,	O
6	O
Plus	O
,	O
6S	O
,	O
6S	O
Plus	O
,	O
SE	O
,	O
7	O
or	O
7	O
Plus	O
device	O
.	O
</s>
<s>
The	O
investigation	O
concluded	O
in	O
November	O
2020	O
with	O
Apple	O
and	O
the	O
states	O
agreeing	O
for	O
Apple	O
to	O
pay	O
a	O
fine	O
related	O
to	O
throttling	B-General_Concept
performance	O
on	O
the	O
devices	O
,	O
and	O
for	O
Apple	O
to	O
issue	O
documents	O
to	O
be	O
transparent	O
about	O
how	O
it	O
throttles	O
performance	O
.	O
</s>
