I think this is happening after latest software updates. I am using S10 from 4 months and I too feel in my S10 charging speed has reduced quite a bit. Also I am facing an issue that while charging the device after some time and percentage the phone doesn't show the time remaining for charging for a while and after few minutes it starts to show and continue the charging. Might be happening because of updates.
Charging speed depends on multiple factors. If you are using your phone while it is being charged, you will find that charging speed is slow. The software throttles down the charging speed when the phone is getting used to keep the temperature down and protect the battery. Ambient temperature also might affect the charging speed. It also depends on the cable that you are using. Sometimes when cable is damaged the phone might not get charged quickly. I had this problem with my earlier phone. Sometimes the case that we use is not good at heat dissipation which results in slower charging. I performed a charging test today. I am on One UI 2.1 (latest update) and I am using standard 25W charger. My phone charged from 2 percent to 95 percent in 50 min. Initially it charged at a rate of about 2 percent per minute. The charging speed reduced after 85 percent. It reached 85 percent in 40 min. If you are worried about the charging speed, I suggest you performing a similar test and compare with my numbers. Just make sure not to use the phone when plugged in and the phone is not hot when you start the charging. Hopefully this helps.
thanks man. so except the cable(which shows no visible signs of wear tear), I've performed exact tests. as for case, I'm using ringke(transparent). like I said earlier, it was charging at an overwhelming speed but now its snailing at 100 mark.
Please perform the below mentioned steps to resolve the issue:
1. We always recommend to use genuine Samsung charger for charging your device.
2. Check your charging cable (USB cable) for physical damage such as wear and tear, bent prongs etc. If it is damaged then kindly visit your nearest service center to get it replaced.
3. Check charger functionality, try to charge your device with some other charger or use your charger to charge some other device.
4. Check charging, if rating is 15W or above. Kindly try to charge the device in a non-inverter socket.
Note: Kindly open Device care from Settings > Battery > Please tap on 3 dots(more option) at the top right hand side > please select settings > enable fast cable charging.
For further assistance, register your concern in Samsung Members Application (Open Samsung Members Application > click on “+“icon > send feedback > error report/ask questions).
Super fast charging is not been displayed on screen or screen lock while charging the phone with OEM charger and usb and also cannot find super fast charging toggle in battery settings, is it just me? did your issue get resolved? any solutions available?
