36V Down Tube Battery with Samsung Cells 4 PIN connection points for models: Commute EX Gents & Ladies – Metallic Blue Available in: 10.4Ah (375Wh) 11.6Ah (415Wh) 12.8Ah (460Wh) 14Ah (500Wh) Weight: 2.5 Kg 2 Keys included Power Indicator Power Switch Waterproof Recharge Socket Complies with RoHS Dimension: 365 x 93 x 93mm 1 Year Warranty