You can set a power saving modes on your phone or tablet to limit its battery usage and make its charges last longer. There are a few different battery saving options and some tricks for optimizing your device's battery life. Give this link a try:
Can I please have your full model number, baseband version, and service provider?
Thanks for reaching out. This forum is for support of US products and customers. As your product is a non-US model and support for these models is very limited, please seek a support team for your area. You can do so by using this link: http://www.samsung.com/visitcountry