18Months

Remark:This 36V13Ah Electric Batteries Compatible with Heybike Electric Bicycle,Suit for Cityscape Ebike Battery Replacement,Battery case size 111mm(length)*75mm(width)*390.5mm(height) This 48V13Ah Electric Batteries Compatible with Heybike Electric Bicycle,Suit for Cityscape Ebike Battery Replacement,Battery case size 111mm(length)*75mm(width)*390.5mm(height)