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Das inoffizielle Android-SystemhandbuchDas inoffizielle Android-Systemhandbuch
Buy at Amazon for EUR 7,00
OTHA Mini Beamer Projektor, DLP Beamer Pico Video Projector Heimkino, Android 7.1 Beamer mit WiFi, HDMI, USB, Eingebaut Akku für Einen Ganzen Film Ansehen (Schwarz)OTHA Mini Beamer Projektor, DLP Beamer Pico Video Projector Heimkino, Android 7.1 Beamer mit WiFi, HDMI, USB, Eingebaut Akku für Einen Ganzen Film Ansehen (Schwarz)
Buy at Amazon for EUR 229,90
Beamer OTHA Mini Beamer 200ANSI Lumens 3D DLP Projektor, 1080P Full HD Android Handybeamer Tragbarer Heimkino, WiFi Bluetooth HDMI Projektor mit Akku für Heim und Reisen MehrwegBeamer OTHA Mini Beamer 200ANSI Lumens 3D DLP Projektor, 1080P Full HD Android Handybeamer Tragbarer Heimkino, WiFi Bluetooth HDMI Projektor mit Akku für Heim und Reisen Mehrweg
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Günstige Smartphones, Ulefone Note 7 Handy ohne Vertrag Triple Kamera DREI Kartensteckplatz 6,1 Zoll In-Cell Wassertropfen Display 16GB ROM 3500mAh Akku, Dual SIM Android 8.1 Handy - TwilightGünstige Smartphones, Ulefone Note 7 Handy ohne Vertrag Triple Kamera DREI Kartensteckplatz 6,1 Zoll In-Cell Wassertropfen Display 16GB ROM 3500mAh Akku, Dual SIM Android 8.1 Handy - Twilight
Buy at Amazon for EUR 68,98
Blackview BV5900 IP69K Outdoor Smartphone Ohne Vertrag 5,7 Zoll HD+ Waterdrop Display Android 9.0 13MP+5MP Kameras 5580mAh Akku Helio A22 3GB+32GB 4G Robustes Handy- NFC/Fingerabdruck/Face IDBlackview BV5900 IP69K Outdoor Smartphone Ohne Vertrag 5,7 Zoll HD+ Waterdrop Display Android 9.0 13MP+5MP Kameras 5580mAh Akku Helio A22 3GB+32GB 4G Robustes Handy- NFC/Fingerabdruck/Face ID
Buy at Amazon for EUR 135,99
Blackview BV5500 Pro (2019) Robustes Telefone 4G IP68 Wasserdicht stoßfest staubdicht, 3GB + 16GB Quad-Core 1,5 GHz Android 9.0 4400 mAh Akku, Dual SIM 5.5" HD+ Display, 8MP+5MP, NFC/GPS/GLONASSBlackview BV5500 Pro (2019) Robustes Telefone 4G IP68 Wasserdicht stoßfest staubdicht, 3GB + 16GB Quad-Core 1,5 GHz Android 9.0 4400 mAh Akku, Dual SIM 5.5" HD+ Display, 8MP+5MP, NFC/GPS/GLONASS
Buy at Amazon for EUR 109,99
HONOR 20 48MP AI Quad-Kamera - 128 GB Smartphone (6,26 Zoll, 3750 mAh Akku, Android 9.0) + gratis Micro-USB zu USB Typ-C Adapter [Exklusiv bei Amazon] - Deutsche Version, Midnight BlackHONOR 20 48MP AI Quad-Kamera - 128 GB Smartphone (6,26 Zoll, 3750 mAh Akku, Android 9.0) + gratis Micro-USB zu USB Typ-C Adapter [Exklusiv bei Amazon] - Deutsche Version, Midnight Black
Buy at Amazon for EUR 296,00
As of 2020-01-18 22:48
prices & availability might be subject to change.
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Battery Helpers

Battery Calibration

2020-01-17

Probably one of the most persistent Battery Myths: the battery needs to be calibrated every now and then! Rather nonsense (see linked article). You don't need an app to calibrate your device's battery. That rather happens as a side-effect: that is, always when your battery ran low until the evening, and you fully charged it in one uninterrupted run (over night) – so those apps are mostly „snake oil“ to obtain ad revenue (see: What’s it all about those modules apps contain?). But for those who insist, there are some calibration apps available – which all require root (mostly to remove the batterystats.bin which holds the "juice consumed by app" data):

Identify Battery Consumers

2020-01-18

Though Android comes with a built-in tool to show battery usage and consumers, this is often mis-interpreted and not even complete. It gives you raw indicators, true – and if there's an app nibbling at your battery all day long permanently with „greater hunger“, it will certainly show up here. For a deeper analysis, however, one often needs tools revealing more details:

Other Battery Helpers

2020-01-18

Further Readings:

2020-01-18