Yesterday I saw the Queen's Gambit on Netflix and was able to follow the series with about 80 percent battery charge until the beginning of the 5th episode. Today I watched the series again, with a 100 percent battery charge I only got to the beginning of the fourth episode. The only difference is that yesterday I watched with Bluetooth headphones and today without headphones, i.e. Through the internal speakers of the tablet. The volume was at full on the headphones. A little less than full through the internal speakers, which is really loud. The tablet is a Huawei MediaPad M5. I haven't changed the brightness or anything else.
My question to you: can it really be that the use of the internal speakers contributes much more to the tablet's battery consumption than Bluetooth headphones?
No. There may be a difference, but the difference is way too big. It was more likely due to the screen brightness or the device temperature.
Yes. It's actually relatively simple. Only one signal is sent via Bluetooth and the headphones do the rest. The internal speakers also draw power for the sound.
Electricity guzzlers are and will remain: display, mobile internet - afterwards Wi-Fi, GPS anyway, etc.
Yes, the difference is actually very big, hence my astonishment and the question to you.
I feel the same way. Because that would be plausible. But almost 2 hours of battery life went down just because I turned on the internal speakers, that was a bit of an exaggeration for me, because it's all about the sound.
This is what I found on the internet about a similar question:
"While the cell phone lasts around 24 hours when listening to music via a cable headset, it is only 19 hours with Bluetooth headphones. If you play music through the built-in speakers, the battery is empty after a good four hours."
So you were right. It's just amazing how big the difference is, whether you're watching a movie on your tablet through built-in speakers or with headphones. Good to know.
