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1. Because it use only when it 100% in1hrs it show 72%Best app ever before,I will say is 100% useful it helps me a lot in terms of charging,it is very fast and also clean all junks files.I recommend you to download it to experience best working app.It works very well compared to the other battery apps out ther, the moment you install it and activate it, it starts charging the phone...and fast to.

2. Thankyou to the developer i give 5 thumbs up 👍👍👍👍👍The app super-Fast Battery charging is linked by thousands people's in India and we people's are much appreciate the best possible way of the internet and other people who have a lot to get the best possible solution for the users ,This app is used by people's opinion and will have the option worldwide ,they like to be able for the future.

3. thanks to the developer of the aap, and I wants you guys to install this app to help you find it easier when you like to watch movies online.It works beautifully and it show when it would full battery time.

4. For example doesn't flood you with a clean me know Pop ups every time you look at the phone wanting you to run all it's programs before you use the phoneIt's very good application, I really like the way it works.

5. I've tried many others and they made the charging slower than the phones regular charge, i will definatly keep this one also will recommend it to everyone.

6. My phone was gonna take 18 hours to charge but when I downloaded this app it only took 2 what a drastic change , I recommend this app .

7. It's the best app for the jobIm very impressed ! Fast charging accually works just as it says.

8. Helps my phone charging faster than before.

9. When it works the battery is very lucky.

10. Thanks SmartApps Production.What a wonderful application and a very big thank to the developer.

11. My tab is able to charge very fast as compared to other applications i used.

1. Fix Fast Charging Booster Not Working/Crashes/Errors/Unresponsive & Black/White screen:

1. Restart Fast Charging Booster: Restarting the app will resolve most errors.
2. Update the Fast Charging Booster App. Here is how:
   1. On Android goto PlayStore » Search for "Fast Charging Booster" » Open Fast Charging Booster:Fast Battery Charging master » click "Update".
   2. On iPhone, goto AppStore » Your profile » Available Updates » Check for Fast Charging Booster » click "UPDATE".
3. Clear Fast Charging Booster:Fast Battery Charging master app cache: Clearing cached data will force your app to retrieve the latest data directly from Fast Charging Booster servers.
   1. On Android, goto Settings » Apps » Select "Fast Charging Booster:Fast Battery Charging master" » click Storage » click "Clear Cache".
4. Check Fast Charging Booster app permissions. If any of these permissions required to use your device's features are disenabled, Fast Charging Booster might not work.
5. Uninstall and reinstall Fast Charging Booster. If nothing else has worked, completely uninstall Fast Charging Booster then reinstall.
6. Restart your device. Last, restarting your device can often clear most problems causing Fast Charging Booster not working

2. Fix Fast Charging Booster Server issues & Internet Connection

1. Check network connection: An unstable Internet will make Fast Charging Booster be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
2. Disable VPN: VPN can cause connection errors and lead to Fast Charging Booster not working. Make sure all VPNs are off
3. Enable background data: When Background data is turned off, Fast Charging Booster may not be able to connect to the Internet when running in the background.