Replacement Lithium Ion Battery by Empire Leica ATX1200, GEB211, GEB221 BLI-211-LEC Simple installation. Just clip on, no tools required, all necessary Cut-outs for easy access to all ports. Printed in the UK using state of the art heat transfer process. Ultra-thin, lightweight, strong and durable design. Same day turnaround on all products we produce. Designed for BlackBerry Curve 8520 Only.