Procizion Replacement 2600mAh Li-ion Battery for Samsung Galaxy S4 (NFC/Google Wallet) This replacement battery is equipped with an NFC antenna, allowing your handset to communicate with other devices and accessories equipped with NFC technology Compatible with Samsung Galaxy S4 smartphone Lithium-ion Polymer Technology for optimum battery life, 2600mAh battery allows you to store the power necessary to keep your device charged throughout the day Built-in IC chip prevents overcharging and in turn prevents over heating Buy with confidence with our 100% money back guarantee!