As it happens, I do have my brightness turned down, auto brightness off, and 
screen curtain on, although I know the latter does not affect  battery life.
Mary


Sent from my iPhone

> On Sep 14, 2016, at 6:56 AM, Jonathan Mosen <jmo...@mosen.org> wrote:
> 
> Hi Dan, Apple Accessibility has confirmed on multiple occasions that screen 
> curtain has no effect on battery drain. Adjusting the brightness does though. 
> I always have my brightness at 0%. Even if I need to turn it up to get 
> sighted help if VO breaks badly enough, which hasn't happened in many years, 
> now you can tell Siri to increase the brightness for you, so I can't think of 
> a reason that a totally blind user shouldn't have their brightness at 0% and 
> automatic brightness adjustment disabled.
> Screen curtain is a great security tool, but it has no impact on battery 
> drain.
> Jonathan Mosen
> Mosen Consulting
> Blindness technology eBooks, tutorials and training
> http://Mosen.org
> 
>> On 15/09/2016, at 1:35 AM, Dan <dbeaver...@gmail.com> wrote:
>> 
>> You might want to check to see if screen curtain is on.  If not turning it 
>> on will drain the battery much more slowly.
>> 
>> 
>> Dan Beaver
>> 
>> 
>>> On 9/14/2016 9:17 AM, Mary Otten wrote:
>>> I am noticing amazing battery drain on my iPhone 6s. I have been using the 
>>> beta for several days now, and I don't recall this battery drain starting 
>>> when I got the beta. It seems to just be over the past few days, and when I 
>>> look for battery usage details, it seems that the mail app is by far the 
>>> biggest consumer of battery. Now that makes sense, since I do a lot of mail 
>>> on my phone. But this morning, having charge my battery up to 100% and turn 
>>> airplane mode on last night, I got up with the battery saying 99%. Within 
>>> an hour, it has dropped to 62%. That seems a bit much. Location tracking is 
>>> not on. No apps are loaded in the background. I just basically been using 
>>> the mail app.
>>> Mary
>>> 
>>> 
>>> Sent from my iPhone
>>> 
>> 
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