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Battery Helpers

Battery Calibration

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):

• NoAd Battery Calibrator [ROOT] (4.3@48) 0 LastUpdate: 2021-09-17 Github
• Easy Battery Calibration (3.6@5,283) 2 1 LastUpdate: 2020-07-01

Identify Battery Consumers

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:

• Usage Timelines Free (4.3@1,635) 5 1 LastUpdate: 2016-11-04
• BBS (4.3@24; ~EUR 2.50) 20 LastUpdate: 2023-06-30 Github; XDA Home
• GSam Battery Monitor (4.1@73,186) Ǥ 17 7 LastUpdate: 2023-12-30 / GSam Battery - Root Companion (3.7@1,539) 3 LastUpdate: 2015-12-17
• Battery Mix (バッテリーミックス) (2.7@13,786) Ǥ 20 3

Other Battery Helpers

• Accu​Battery (4.6@566,215) Ǥ 19 8 Video Intro 7/2018
• BatteryBot Battery Indicator (4.3@59,264) 3 LastUpdate: 2022-03-24 / BatteryBot Pro (4.6@6,423; ~EUR 3.00) 6 LastUpdate: 2021-12-07 Github; Vorstellung 3/2019; Battery monitoring tool
• Battery Guru: Battery Health (4.2@30,552) 9 3
• Battery Charge Notifier (4.2@2,063) 3 LastUpdate: 2021-03-15
• DU Battery Saver (4.1@113) 23 17 LastUpdate: 2019-03-11
• Ampere (4@321,927) Ǥ 12 2 show how many mA your device uses/gets fed
• Safe Charger (4@36) 4 LastUpdate: 2021-01-23 Github; notifies you when charge reaches 85%
• Battery Charge Limit [ROOT] (3.8@2,910) 2 LastUpdate: 2018-10-19 Github; Video Demo 5/2019; stop charging at a set limit (default: 80%)
• Ampere Meter (3.6@15,460) Ǥ 10 5 LastUpdate: 2023-05-25
• Batteryminder (3@4,410) 10 LastUpdate: 2020-03-03
• Healthy Battery Charging (0@0) 4 Github; keep your phone charging between 40% and 80%
• Plus Plus Battery (0@0) 6 Github
• Battery Notification (0@0) 7 Github; battery status in the notification bar
• Battery Charge Limiter (BCL) (0@0) 4 Github
• Advanced Charging Controller (ACCA) (0@0) 2 LastUpdate: 2021-09-02 Github; Advanced Charging Controller; needs root