Replaces or upgrades your faulty mobile cell phone battery. Works like the original manufacturer cell phone battery but at a lower cost. Stay connected with your family and friends by getting extra battery power today. This replacement battery has an integrated microchip that prevents overcharging and lengthens battery life. Best replacement for the original battery with comparable standby and talk time - High performance and high reliability lithium battery - Perfect for replacing worn out batteries giving your cell phone a fresh start - Built-in safety and protective circuitries - Designed for Samsung Galaxy ACE S5830