BlackBerry BAT-14392-001, M-S1 battery, Internal, Standard capacity Lithium-Polymer battery is the factory original battery designed & built specifically for the RIM BlackBerry 9000 Bold, 9700, 9780 Bold cell phone models. BlackBerry BAT-14392-001, M-S1 Li-Polymer Internal, Standard battery provides your RIM BlackBerry 9000 Bold, 9700, 9780 Bold cell phone with the standard battery capacity that originally shipped with most RIM BlackBerry 9000 Bold, 9700, 9780 Bold cell phone models. Lithium Polymer (Li-Polymer) batteries are the Lightest battery chemistry to fit your cell phone requirements. At least 50% more talk time & 50% lighter than NiMh batteries of the same size! This memory free, standard capacity battery, is the factory original, RIM BlackBerry BAT-14392-001, M-S1 Li-Polymer battery, rated at 1550 mAh capacity. RIM BlackBerry BAT-14392-001, M-S1 battery is compatible with RIM BlackBerry 9000 Bold, 9700, 9780 Bold cell phone models only. You Never need to condition your battery after the first 2-3 cycles! Charge the initial 24-hour battery charge with the cell-phone turned off. Note that a new lithium Polymer battery"s full performance is only achieved after 2-3 complete charge and discharge cycles. Blackberry by RIM Factory original warranty of One year applies.