Lenmar Replacement Battery for Pioneer GEX-XMP3 XMP3 Replaces OEM Pioneer XM-6900-0004-00 Fits: Pioneer GEX-XMP3 XMP3 Replaces: Pioneer XM-6900-0004-00 3.7V / 950mAh Lithium Ion 1 Year Warranty Fits: Pioneer GEX-XMP3 XMP3 Replaces: Pioneer XM-6900-0004-00 3.7V/950mAh Lithium Ion 1 Year Warranty