What is the weight of the Swytch batteries? 15 November 2019 14:05 Updated Follow Eco: 1.5kg Pro: 1.5kg Tour: 2.1kg Original kit 25 Mile: 2.1kg 50 Mile: 3kg Related articles How often do I have to charge the battery? Can I put the Swytch in my Brompton bag? What is the charge time of the battery? How to convert your bike - 250w kit Can the battery be removed?