for Samsung

[jayantamit]

As my mbl has a good battery backup at starting but now its battery backup going down can j know the reason 

And my Samsung works slow too 

Any update 

[iamSUHAIL]

check battery usage

[Monu18]

Because battery degrades over time. Free some internal storage space if it is full so device will become faster considerably.

[Samsung_Support4]

Hi there,

Please perform the below mentioned steps to resolve the slow performance issue:
> Stop the background running app (Tap on the left soft key and close all the running apps).
> Ensure 20% of internal memory of device is free (Scroll down notification panel > Setting > Device maintenance > storage).

> If device slow performance in any particular application/game then Clear cache memory of that application (Settings>apps> tap on that app>storage>clear cache)

To resolve the battery issue please follow the troubleshooting steps provided in the given link: http://www.samsung.com/in/support/skp/faq/1101689

For further assistance, register your concern in Samsung members app (Open Samsung members app>click on “+“icon>send feedback>Error report/ Ask Questions).

Regards,
Team Samsung Members

[jayantamit]

my internak space is more that 50% free
and there is no heavy game installed in my mobile