Kiats
Headphoneus Supremus
That does seem rather low... I was just thinking yesterday (aside from my little BT issue) that Shanling have a good thing going with battery life with the M9 and M9+.
Just to be sure, what do you mean by Battery recalibration? And it's 6 hours from 100% to dead unit to to low battery levels?
Is this brand new unit? Or used?
It has also quite a big impact what files you are running. Classic redbook against DSD256 or MQA will show quite a big swing.
The unit was bought used from a forum member. I am playing primarily flac (some DSD) using UAPP and doing that thru the balanced input.
Battery recalibration as I understand it: I play the unit until it shuts down (appx 2-3%) and then turn it on until it cannot boot up. Then I plug it in and fully charge to 100%. When full, but still plugged in, I turn it on, let it boot up and make sure it's at 100%. Then I unplug and use.
The unit agrees saying I'm getting about 6 hours.
Is the Shanling M9+ UAC 1.0 compatible?
Are there any audio differences between the different gain modes?
Not that I've been noticing. Admittedly not been using high gain very often, but between lo and med gain, power/volume seems to be the only appreciable difference.
Quartex
Head-Fier
Hello @Shanling,
can you kindly advise: I'm the first owner of a M9+. My device is unloading -18% pts over 14 hours when switched off. I was coming down from 80% to 62% during that time. Do you agree this behaviour is out of specs?
Besides the outstanding sound quality, I am certainly not impressed with the battery drain during regular use. I tried all sorts of source files, mp3, flac, DSD in all combinations of the amplification circuits and never managed to get over 5 hours. I'd also like to point out that I charge all my devices up to 80% only, in general. Since the M9+ battery experience was underwhelming, I decided to also charge a handful of times up to 100%, hoping for some (positive) tipping point effect, but there was none. Nothing had improved
Referring back to my initial point of 18% pts discharge over 14 hours when the device is entirely switched off, is my understanding correct that I probably have a malfunctioning device that I am supposed to hand in for repair / exchange?
Thanks.
(edit: typos)
can you kindly advise: I'm the first owner of a M9+. My device is unloading -18% pts over 14 hours when switched off. I was coming down from 80% to 62% during that time. Do you agree this behaviour is out of specs?
Besides the outstanding sound quality, I am certainly not impressed with the battery drain during regular use. I tried all sorts of source files, mp3, flac, DSD in all combinations of the amplification circuits and never managed to get over 5 hours. I'd also like to point out that I charge all my devices up to 80% only, in general. Since the M9+ battery experience was underwhelming, I decided to also charge a handful of times up to 100%, hoping for some (positive) tipping point effect, but there was none. Nothing had improved
Referring back to my initial point of 18% pts discharge over 14 hours when the device is entirely switched off, is my understanding correct that I probably have a malfunctioning device that I am supposed to hand in for repair / exchange?
Thanks.
(edit: typos)
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If possible, please contact your seller and send them your unit for testing.
Has anyone experienced issues with the pause/play button not working? It seems mine has stopped to function and wonder if there are known fixes.
This is my second unit already and I really do hope I don't need to try get this replaced again... @Shanling any ideas?
This is my second unit already and I really do hope I don't need to try get this replaced again... @Shanling any ideas?
Ugh, sorry to hear that. Mine has exhibited no such issue. My battery is clearly whacked, but nothing like this has occurred.
I had a battery issue on my first unit, presumably a loose connection somewhere inside the unit. This second one has been fine for about 3 months now but the pause/play isn't functioning since a few days back.
I'd feel bad if I have to send this back for a third one...
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I have a unit coming in next week but the battery and other issues reported on this thread aren’t exactly inspiring confidence 
Tried factory resets via both Android system reset as well as recovery mode, neither of which fixed the problem. Probably a hardware side issue, looks like this might have to go back for warranty again.
I have a unit coming in next week but the battery and other issues reported on this thread aren’t exactly inspiring confidence
You can find such hardware issues on any device on the market. Just buy from a reliable shop that offers a proper warranty and there is nothing to fear.
After factory reset it seems it would have to be a hardware issue, either on inner alignment or the button itself.
