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This Lithium Ion battery is designed specifically for your Samsung Galaxy Note 2 mobile phone to deliver the most reliable and long lasting power (3100 mAh). This battery is equipped with an NFC antenna, allowing your handset to communicate with other devices and accessories equipped with NFC technology. It is recommended to fully drain and fully charge the battery especially during the first 3 charging and discharging cycles, doing so may greatly improve the overall life of the battery. Compatible with all Samsung Galaxy Note 2 Smartphones.