Sunstar Virtus E-Bike Bottom Bracket Motor System is equipped with 36 V batteries. Our energy packs come in two versions, delivering 400 Wh or 520 Wh. The batteries can be placed either in a down-tube or in a rear-rack position.
All our batteries have been designed in technological partnerships with worldwide leading manufacturers. They rely on state-of-the-art technology in order to provide high performances with no memory effect or self-discharge.