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Das inoffizielle Android-SystemhandbuchDas inoffizielle Android-Systemhandbuch
Buy at Amazon for EUR 7,00
moto g7 power Dual-SIM Smartphone (5000mAh Akku, 6,2 Zoll Display, 12-MP-Kamera, 64GB/4GB, Android 9.0) Ceramic Blackmoto g7 power Dual-SIM Smartphone (5000mAh Akku, 6,2 Zoll Display, 12-MP-Kamera, 64GB/4GB, Android 9.0) Ceramic Black
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Ulefone Note 7 (2019) Smartphone ohne Vertrag Triple Kamera (AI Modus) 6,1 Zoll In-Cell Wassertropfen Bildschirm 16GB ROM 1GB RM 3500mAh Akku, Dual SIM Micro Nano Android Go Handy Günstige - SchwarzUlefone Note 7 (2019) Smartphone ohne Vertrag Triple Kamera (AI Modus) 6,1 Zoll In-Cell Wassertropfen Bildschirm 16GB ROM 1GB RM 3500mAh Akku, Dual SIM Micro Nano Android Go Handy Günstige - Schwarz
Buy at Amazon for EUR 66,99
Ulefone P6000 Plus (2019) 6350mAh Akku 4G Smartphone ohne Vertrag 6,1 Zoll Android 9.0 3GB RAM + 32GB ROM, OTG, 13MP+5MP Dual Kamera Dual SIM Handy, Face ID Fingerabdruck - TwilightUlefone P6000 Plus (2019) 6350mAh Akku 4G Smartphone ohne Vertrag 6,1 Zoll Android 9.0 3GB RAM + 32GB ROM, OTG, 13MP+5MP Dual Kamera Dual SIM Handy, Face ID Fingerabdruck - Twilight
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Cyrus CS24 WORK Outdoor Smartphone, 5000 mAH Akku, Android 7.0 Nougat, 5 Zoll, 16 GB, Dual SIM, 13 MP Kamera, stoßfest, staubdicht, wasserdicht, schwarzCyrus CS24 WORK Outdoor Smartphone, 5000 mAH Akku, Android 7.0 Nougat, 5 Zoll, 16 GB, Dual SIM, 13 MP Kamera, stoßfest, staubdicht, wasserdicht, schwarz
Buy at Amazon for EUR 212,61
Mini Projektor Beamer, Android7.1 Videoprojektor TOUMEI C800S LED Portable Heimkino Beamer WiFi Bluetooth Quad-Core HDMI / TF / USB Pocket Video Beamer Multi-Bildschirm für Smartphone PC LaptopMini Projektor Beamer, Android7.1 Videoprojektor TOUMEI C800S LED Portable Heimkino Beamer WiFi Bluetooth Quad-Core HDMI / TF / USB Pocket Video Beamer Multi-Bildschirm für Smartphone PC Laptop
Buy at Amazon for EUR 209,00
Blackview A60 Pro (2019) 4G Smartphone ohne Vertrag Günstig 6,1 Zoll Android 9.0 3GB RAM + 16GB ROM, 256GB erweiterbar 4080mAh Akku 8MP+5MP Dual Kamera Dual SIM Handy - Face/FingerabdrucksensorBlackview A60 Pro (2019) 4G Smartphone ohne Vertrag Günstig 6,1 Zoll Android 9.0 3GB RAM + 16GB ROM, 256GB erweiterbar 4080mAh Akku 8MP+5MP Dual Kamera Dual SIM Handy - Face/Fingerabdrucksensor
Buy at Amazon for EUR 89,99
As of 2019-08-22 14:49
prices & availability might be subject to change.
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Battery Helpers

Battery Calibration

2019-08-09

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

2019-08-09

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

2019-08-09

Further Readings:

2019-08-14