24 October 2017

Best phone battery saving tips

You can find battery tips on the web, but some of them are old and not up to date. I have collect conclusions from latest researches (for example Battery University, Google...) and for latest versions of Android. Follow this suggestions for keeping the battery in good condition.

Charging is the most important thing for keeping the battery in good condition without long-term damage.
1. Don't keep the phone plugged in when it's already fully charged. It keeps the battery in high stress which wears down the components/chemistry inside.
2. If you don't have to, try not to charge it to 100%. Li-ion battery lasts longest when operating between 30% and 80%.
3. Charging your phone occasionally and not in big charging session. Maybe it looks that this isn't practical, but simply don't think about it. Whenever you can, plug in your phone for half an hour or so. There is no memory effect in Li-ion batteries!
4. Keep your battery cool. Heat is your batteries enemy. Remove the case if it insulates heat, don't put your phone on sun or heater...
5. Use the original charger and cable. Especially if your phone uses quick charging. Most of the studies agree that quick charging can lead to a faster decline of the battery's lifespan. If you have time, use normal charging with the original cable. Don't use cheap chargers or cables. The amount of power your cable can carry is determined by the size of the wires inside - and cheaper cables use thinner wires, worse insulation, and shielding.
6. Don't use quick changer if don't need to. Leave it only for times when you are in a hurry. Better stay with a classic USB cable on your computer (not on fast USB port) and charge your battery slow.
For example, OnePlus 5 (my review) uses fast DASH charging and it can charge up the battery from 0% to 60% in 35 minutes.
Remember: all batteries perform best at room temperature and with a moderate charge and discharge.

Android Settings
Battery life on your phone really depends on your usage. Especially screen brightness (usage on bright daylight!), bad signal, some battery hungry apps and some other stuff can drain your battery fast. But bellow listed Android settings can also be checked - maybe you don't use enabled features. Their location can differ from the version of your system (hint: use search when you are in settings).
1. Disable Auto Sync
2. Turn off Notification -> Apps were Auto Updated
3. Google Play Store -> Settings -> Do not Auto update app
4. Turn Off Google Now/Assistant
5. Settings -> Google -> Search -> Voice -> Disable OK Google Detection
6. Settings -> Google -> Search -> Disable Your Feed
7. Settings -> Wi-Fi -> Settings -> Switch Off -> Smart Wifi Switcher, Scanning Always & Network Notification
8. Settings -> Location -> Scanning -> Turn off WiFi & Bluetooth Scanning
9. Turn off Bluetooth, GPS, NFC
10. Disable Gestures
11. Disable Adaptive Brightness
12. Enable Developer Options (Settings -> About phone -> tap Build number 7 times ... and return back to find Developer Options).
13. Enable Doze Mode (in Developers Options)
14. Enable App Wi-Fi Multi/Broadcasting Filter
15. Set Window and Transition scale to 0.5 or None
16. Settings -> Backup & Reset -> Turn Off Backup My Data (you can turn this on occasionally)
17. Settings -> Advanced -> Recent App Management -> Normal Clear

What else?
You can check what is using your battery in Settings -> Battery. To get detailed information install a battery app with more advanced algorithms. My suggestion is BetterBatteryStats, but there are more of them. It will provide an insight to wakelocks, CPU states, Network stats... to help you find an app which uses the battery without your conscience.
There are many different ROMs and kernels for Android phones. Battery life is one the most discussed topics when you read about them. Can you can better battery life with changing kernel?
Yes and no. You can read The truth about kernels and battery life from an author of one of the most popular kernels (ElementalX).

But if your battery is old (even two years or more), if you charge battery "all the time" ... then in reality, you can't expect long battery life. It is time to buy a new one. My suggestion is to buy original. It is more expensive, but it will last longer, with better battery life and it will be safer (well, except Samsung :-)). 

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