36V Rear Carrier Battery with Samsung Cells 4 PIN connection points (parallel configuration) for models: Step NX (700c Wheel) / Step NX (26″ Wheel) – Metallic Copper Fold / Fold LS – Metallic Orange Available in: 10.4Ah (375Wh) 11.6Ah (415Wh) 12.8Ah (460Wh) 14Ah (500Wh) Weight: 2.5 Kg Power Indicator Power Switch Waterproof Recharge Socket Grid Handle for easy removal Complies with RoHS Dimension: 420 x 160 x 70mm 1 Year Warranty