Want extra power? BackUp Battery For Nintendo 3DS: The best option! The battery is professional grade and has LED lights that display the battery's power. It also features an extended Lithium Ion battery core, which offers twice as much gaming life than the normal 3DS batteries. Just snap the cable on to your 3DS. Press "Charge" and your system will be brought back to life. Charge your device from any USB-compatible computer or device. Just plug it in and go! Compatible with 3DS system. Snap the cable onto your 3DS for a doubled battery life.