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Das inoffizielle Android-SystemhandbuchDas inoffizielle Android-Systemhandbuch
Buy at Amazon for €4.79
AGM H5 Outdoor Mobile Phone without Contract, Android 12 Outdoor Smartphone 109 dB Speaker 7000 mAh Battery, Octa-Core 6 GB + 128 GB, 20 MP IR Night Vision IP68 Waterproof Mobile Phone 4G Dual SIM, 6.53 Inch HD+ Touch ID/NFCAGM H5 Outdoor Mobile Phone without Contract, Android 12 Outdoor Smartphone 109 dB Speaker 7000 mAh Battery, Octa-Core 6 GB + 128 GB, 20 MP IR Night Vision IP68 Waterproof Mobile Phone 4G Dual SIM, 6.53 Inch HD+ Touch ID/NFC
Buy at Amazon for €356.98
OUKITEL RT1 Outdoor Tablet, Tablet 10.1 Inch 10000 mAh Battery, 128 GB Expandable 4 GB + 64 GB Tablet Android 11, Cameras 16 MP Tablet PC, IP68 Waterproof, 5G WIFI, 4G LTE Dual SIM, Bluetooth 5.0, Face ID, OTGOUKITEL RT1 Outdoor Tablet, Tablet 10.1 Inch 10000 mAh Battery, 128 GB Expandable 4 GB + 64 GB Tablet Android 11, Cameras 16 MP Tablet PC, IP68 Waterproof, 5G WIFI, 4G LTE Dual SIM, Bluetooth 5.0, Face ID, OTG
Buy at Amazon for €299.99
VRURC PowerBank USB C, 20 W PD Mini External Battery Fast Charging 5000 mAh Type C Power Bank Small but Strong Mobile Phone Portable Charger Compatible with Samsung, Huawei, USB C Smartphones - BlackVRURC PowerBank USB C, 20 W PD Mini External Battery Fast Charging 5000 mAh Type C Power Bank Small but Strong Mobile Phone Portable Charger Compatible with Samsung, Huawei, USB C Smartphones - Black
Buy at Amazon for €19.99
Samsung Galaxy S23 Ultra Android Smartphone, 256GB, 5.000mAh Akku, Smartphone ohne Vertrag Cream inkl. 36 Monate Herstellergarantie [Exklusiv bei Amazon]Samsung Galaxy S23 Ultra Android Smartphone, 256GB, 5.000mAh Akku, Smartphone ohne Vertrag Cream inkl. 36 Monate Herstellergarantie [Exklusiv bei Amazon]
Buy at Amazon for €1,399.00
Mini Projector with Battery for Outdoor Use EZCast Beam J4a WLAN Portable Projector Built-in Android 10, Speaker, Supports Netflix, HDMI, USB, DLP, 300 ANSI, 100 Inch Picture, 4 Hours PlaybackMini Projector with Battery for Outdoor Use EZCast Beam J4a WLAN Portable Projector Built-in Android 10, Speaker, Supports Netflix, HDMI, USB, DLP, 300 ANSI, 100 Inch Picture, 4 Hours Playback
Buy at Amazon for €349.99
As of 2023-02-04 04:47
prices & availability might be subject to change.
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Battery Helpers

Battery Calibration

2023-01-22

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

2023-01-22

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

2023-01-22

Further Readings:

2023-02-03