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 Lifetime Warranty to make sure you are 100% satisfied with your purchase!