The Samsung Galaxy S 4 mini standard battery with NFC will keep you in touch even when your original cell phone battery runs out of charge. This high-performance cell phone replacement battery uses the latest technology to make sure you get as much talk time as you need. This Samsung standard battery features a Lithium-ion cell type and a 1900mAh capacity. Lithium cell phone batteries offer a reliable backup power source for your mobile phone. This battery is equiped with and NFC antenna, allowing your Samsung Galaxy S 4 mini to communicate with other NFC enabled devices and accessories.