Extended Battery for Samsung Galaxy S4 7400 mAH Battery Pack by Mobile Charger-Kandese. Use it as cell phone battery replacement for your Samsung S4 MAXIMIZE YOUR POWER: If your Galaxy S4 OEM battery capacity of 2600 mAH doesn't seem to last as long as it once did or if you are just looking to add more power to your smart phone to get through busy day, this extended battery with a stronger, larger battery that is guaranteed to last longer than your original battery. Please read product description below to ensure max battery performance. GET MORE POWER: Most Samsung Galaxy S4 cell phone batteries replacement has less than 7400 mAH battery pack. Why settled for less? With the Samsung Galaxy S4 Extended Battery, you have the ability to increase your battery capacity drastically. Unlike external power sources such as power banks or battery cases, this built-in battery is totally power efficient, giving your phone 100% of the stored energy to use. QUALITY BATTERY CELLS: This Extended Battery for Samsung Galaxy S4 uses Grade A+ rated battery cells with CE and ROHS certification. Each battery made of high quality Lithium core comes with precision circuit protection plate design to protect your smart phone from over-heating, short-circuit, over charging or over discharging. Each Extended Battery for Samsung S4 battery is designed to last over 500 repeated battery charge cycles EASY TO USE: This S4 Extended Battery is extremely easy to install and use. After turning off your device, just remove the back cover of your smart phone along with your current battery. Simply pop in the Extended Battery for S4 and replace your existing back cover with the Extended Battery Back Cover. Now you will have access to extra power! Note: Battery is thicker than the standard OEM battery and weighs just a little bit more. Full NFC functionality YOU WANT IT FAST WITH GREAT AMAZON CUSTOMER SUPPORT? PORTABLE SOLAR SHOP is Mobile Charger Authorized Seller through fulfillment by AMAZON. All of PORTABLE SOLAR SHOP's products are shipped from the USA - Fast shipping and easy return policy through AMAZON. Note: Extended Battery is a generic battery brand made for S4. Phone sold separately