Dustproof and water-resistant, the Galaxy S6 active has a rugged design that's engineered for outdoor activities. For battery issues: Settings > Battery and check out Battery usage. You can find power-guzzling apps and replace them, or try to reduce their consumption by turning off notifications.Try plugging it in with the original charger and cable it shipped with and leave for at least half an hour, then try holding down the Power button for ten seconds again. See if you can get the recovery menu to come up by holding down the Power, Home, and Volume up buttons together until you see the Android mascot onscreen. Highlight reboot system now using the Volume buttons, and use Power to select it.