One of problems found by people who use LG G4 is the problem with their charging battery process. They report that the charging battery process is running slowly and it takes quite long time to get the battery fully charged.
Some cases are reported that the very slowly charging process is occurred in certain circumstances. If it is the same as your case, you can try to understand your problem by downloading the Ampere app and use it in your phone.
To overcome your slowly charging battery problem, you can try to try these options and see if there any differences. Please do not use your phone while you charge your battery and leave the screen off to get it recharged quickly.
You also need to know that some people believe that avoiding the heat of your phone could add the charging speed. You can try this option by removing your phone case and charge your device at a cool place.
Some others suggest that removing MicroSD card could make the charging battery process becomes speedy and it could fully recharged quickly.
Other option that potentially suitable for your problem solution is by try using LG Quick Charge 2.0 feature. This is a worthy thing to try because actually LG G4 supports Quick Charge 2.0 but the charger that accompanied it in one box does not supports the Quick charge feature.
It is also helpful to buy a Quick Charge 2.0 charger to get faster charging speeds of your phone. It may need additional cost but this option is a simple solution and gives the big chance that your charging battery problem solved immediately.
It is not just bring your charging phone process speed back to normal, but even give more speedy charging battery process to your LG G4.