The fuse is there to protect the electronics and may blow if, for example, the trolley follows you into rough ground, through very long and/or wet grass, the golf bag is too heavy, or attempting to drive up hills or inclines that are too steep for the trolley to cope with.
If the fuse has blown, here is a link showing the fuse that you will need which you can purchase if required. https://www.stewartgolf.co.uk/collections/x-series-spares/products/40a-blade-fuse
This can usually be purchased from a good garage forecourt which may save time and get you back on the course quicker.
Please reach out to our Customer Care team using the contact us form, for an installation video if required.