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Das inoffizielle Android-SystemhandbuchDas inoffizielle Android-Systemhandbuch
Buy at Amazon for €6.99
Blackview A55 Smartphone without Contract, Android 11 Dual SIM Mobile Phone, 6.52 Inch HD+ Display, Quad-Core 3GB + 16GB, 4780mAh Battery, 5MP+8MP Camera, 4G LTE GPS WiFi Face Unlock, BlackBlackview A55 Smartphone without Contract, Android 11 Dual SIM Mobile Phone, 6.52 Inch HD+ Display, Quad-Core 3GB + 16GB, 4780mAh Battery, 5MP+8MP Camera, 4G LTE GPS WiFi Face Unlock, Black
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Ulefone Note 12P Mobile Phone - 6.82 Inch Ultra Large Screen, 7700 mAh Large Battery, OTG Reverse Charge, Android 11 Operating System, Octa-Core Processor 4 + 64 GB, 3 Card Slot, Slim Structure (Blue)Ulefone Note 12P Mobile Phone - 6.82 Inch Ultra Large Screen, 7700 mAh Large Battery, OTG Reverse Charge, Android 11 Operating System, Octa-Core Processor 4 + 64 GB, 3 Card Slot, Slim Structure (Blue)
Buy at Amazon for €152.99
Power Bank 25800 mAh, High Capacity, VOOE External Battery Power Pack, Quick Charge, External Charger, Battery Pack, Dual Ports Output for Mobile Phone, Tablet, BlackPower Bank 25800 mAh, High Capacity, VOOE External Battery Power Pack, Quick Charge, External Charger, Battery Pack, Dual Ports Output for Mobile Phone, Tablet, Black
Buy at Amazon for €22.90
OUKITEL WP18 Outdoor Mobile Phone, 12500 mAh Battery, Android 11 Quad Core, 128GB Expandable, 4GB + 32GB Outdoor Smartphone, IP68 Waterproof, Display 5.93 Inch HD+, Camera 13MP, 4G Dual SIM/OTG andy Without Version WearOUKITEL WP18 Outdoor Mobile Phone, 12500 mAh Battery, Android 11 Quad Core, 128GB Expandable, 4GB + 32GB Outdoor Smartphone, IP68 Waterproof, Display 5.93 Inch HD+, Camera 13MP, 4G Dual SIM/OTG andy Without Version Wear
Buy at Amazon for €135.99
Samsung Galaxy M32 Android Smartphone without Contract, 6.4 Inch Infinity U Display, Powerful 5000 mAh Battery, 128 GB/6 GB RAM, Mobile Phone in Blue, German Version Exclusive to AmazonSamsung Galaxy M32 Android Smartphone without Contract, 6.4 Inch Infinity U Display, Powerful 5000 mAh Battery, 128 GB/6 GB RAM, Mobile Phone in Blue, German Version Exclusive to Amazon
Buy at Amazon for €249.00
As of 2022-05-24 20:20
prices & availability might be subject to change.
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Battery Helpers

Battery Calibration

2022-05-20

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

2022-05-20

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

2022-05-20

Further Readings:

2022-05-22