Samsung uses the latest Lithium Ion Battery technology giving you the best performance possible compared to other battery technologies. Flight delays, power outages, extended trips. You canʼt always recharge your device when youʼd like to. But with an extra battery on hand, you can always talk, type and work as long as you need to. Keep it in your bag or briefcase and youʼll stay connected, powered up and ready to get the job done.