Increase your battery life with the PowerBear Samsung Galaxy Note 4 Extended Battery. Made with Grade A+ battery cells with CE and ROHS certification, this battery increases your capacity up to 230% while maintaining a safe and efficient charge. Built with an integrated temperature sensor, this battery is protected against overcharging, discharging, overheating and short circuiting, all while maintaining hundreds of efficient charge cycles. This battery also includes a protective case that gives your phone the protection it needs. Like with all our products, this extended battery comes with a PowerBear 24 Month Warranty to make sure you are 100% satisfied with your purchase!