Keep your phone running with the BlackBerry J-M1 battery.Made to the same specifications as the original BlackBerry Bold 9790 9930 9900 battery, the J-M1 is the perfect spare or replacement battery if your original battery because damaged. With 1250mAh, the J-M1 provides enough power to keep your BlackBerry Bold 9790, 9930 9900 running whilst out and about.The battery allows you to keep talking whilst your out and about so you don"t miss important phone calls.