Battery Helpers

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):

Advanced Battery Calibrator (4.6@316,884) 7 6 LastUpdate: 2019-02-13
Battery Calibration (4.4@148,099) Ǥ 15 9 LastUpdate: 2018-12-28
NoAd Battery Calibrator [ROOT] (4.3@48) 0 $Contains no trackers known to us \o/$ LastUpdate: 2019-10-02 Github
Battery Calibrator (4.2@707) Ǥ 6 4 LastUpdate: 2016-06-25
Easy Battery Calibration (4@2,743) Ǥ 4 1
Battery Calibration [ROOT] (3.9@6,878) 2 1 LastUpdate: 2014-07-06
Calibrate Battery Now (root) (3.8@205) 3 2 LastUpdate: 2016-08-12
Battery Calibration Pro (3.7@746) 2 1 LastUpdate: 2014-07-31
Battery Calibrator (3.5@565) 3 LastUpdate: 2014-11-15
BatteryCalibration (0@0) 0 $Contains no trackers known to us \o/$ Github

Identify Battery Consumers

2021-07-19

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:

GSam Battery Monitor (4.4@71,546) Ǥ 14 4 / GSam Battery - Root Companion (3.3@1,539) 3 $Contains no trackers known to us \o/$ LastUpdate: 2015-12-17 / GSam Battery Monitor Pro (4.5@8,113; ~EUR 2.50) Ǥ 13 3
Usage Timelines Free (4.3@1,635) 5 1 LastUpdate: 2016-11-04
BBS (4.3@24; ~EUR 2.50) 16 1 Github; XDA Home
SystemPanel 2 (4.2@2,482) Ǥ 21 1 LastUpdate: 2018-10-15 Test 2/2017; Data Extraction 5/2019
SystemPanelLite Task Manager (4@12,781) 10 $Contains no trackers known to us \o/$ LastUpdate: 2017-03-27 / SystemPanel App / Task Manager (3.8@6,249; ~EUR 3.00) 10 $Contains no trackers known to us \o/$ LastUpdate: 2017-03-17
PowerTutor (4@1,136) 6 $Contains no trackers known to us \o/$ LastUpdate: 2016-11-05
Wakelock Detector [ROOT] (3.9@29,194) Ǥ 4 $Contains no trackers known to us \o/$ LastUpdate: 2016-03-14 / Wakelock Detector [FULL PACK] (3.3@519; ~EUR 3.00) Ǥ 9 1 LastUpdate: 2019-03-26
Battery Mix (3.8@13,771) 17 3
Battery Stats Plus (3.5@3,726) Ǥ 10 $Contains no trackers known to us \o/$ LastUpdate: 2014-12-19 also compares your battery's runtime with that of others

Other Battery Helpers

2021-07-19

AccuBattery (4.6@295,944) Ǥ 15 4 Video Intro 7/2018
Ampere (4.5@269,811) Ǥ 9 2 Kurzvorstellung 3/2015; show how many mA your device uses/gets fed
Battery Guru: Monitor & Saver (4.5@5,961) 17 4
BatteryBot Battery Indicator (4.3@58,490) 2 $Contains no trackers known to us \o/$ / BatteryBot Pro (4.4@6,414; ~EUR 3.00) 7 $Contains no trackers known to us \o/$ Github; Vorstellung 3/2019; Battery monitoring tool
Kapex Battery Monitor (4.3@118) 4 3 LastUpdate: 2014-08-05 how much time lasted each battery percent
GreenHub BatteryHub (4.3@65) 12 1 LastUpdate: 2019-10-04 Github; battery monitor
Energize (4.2@102) 3 $Contains no trackers known to us \o/$ LastUpdate: 2017-12-20 Github
Battery Dr saver+a task killer (4.1@119,385) Ǥ 26 5 LastUpdate: 2016-11-30
Batteryminder (4.1@4,428) 6 $Contains no trackers known to us \o/$
Ampere Charging Time (4.1@236) Ǥ 3 2 LastUpdate: 2017-11-18
DU Battery Saver (4.1@113) 33 17 LastUpdate: 2019-03-11 Video Review 1/2014 | 3/2014
Ampere Meter (4@14,662) Ǥ 7 8
Battery Charge Limit [ROOT] (4@2,290) 2 $Contains no trackers known to us \o/$ LastUpdate: 2018-10-19 Github; Video Demo 5/2019; stop charging at a set limit (default: 80%)
Battery level shutdown (4@32) Ǥ 7 1 LastUpdate: 2018-05-21
Safe Charger (3.9@29) 4 $Contains no trackers known to us \o/$ Github; notifies you when charge reaches 85%
Battery Charge Notifier (3.8@1,600) 4 $Contains no trackers known to us \o/$
Carat (3.7@2,750) 14 $Contains no trackers known to us \o/$ LastUpdate: 2018-03-27 personalized recommendations for improving your battery life
No Wakelock (3.3@239) $Contains no trackers known to us \o/$ LastUpdate: 2016-05-13 disable unnecessary wakelocks. root+Xposed required. Read howto for details.
DrainGuard TRIAL (3.2@49) 9 LastUpdate: 2012-12-30 monitors usage and alarms you in case of "jumps"
AccA (0@0) 2 $Contains no trackers known to us \o/$ Github; Advanced Charging Controller; needs root

Further Readings:

Rubrik Battery Savers
Rubrik System Info
General
- How To Take Care of Your Smartphone Battery the Right Way (12/2014)
- Garantiebestimmungen für Akkus in Smartphones (6/2014 - 1/2017)
- Akkus: Das Leben mit der Stagnation (6/2014)
- Known Android Myths (9/2012)
- The Top 3 Android Battery Myths (1/2012)
Battery Calibration

2021-07-21

IzzyOnDroid

Battery Calibration

Identify Battery Consumers

Other Battery Helpers