A mover does not work without a battery and battery charger. That's why we offer our select range of complete sets to give you everything you need for your mover. We always recommend the Optima Yellow Top 4.2 /55 Ah Battery including the Ctek Multi XS 5.0 Polar charger in a complete set. This complete set has a weight of only 20kg. We base this recommendation on our positive long term experience of Optima batteries. If you already have a good quality battery you can simply buy your chosen mover without any need to purchase a complete set. Fitting a mover is a specialised job. Your mover must be fitted properly to function effectively and have a long and trouble free working life. It is also important to purchase the mover which best suits your caravan. Choosing the right mover is not always straightforward. Not every mover fits every caravan. Please contact us for more information. We only sell original brand products with a complete warranty. For us it is very important to provide you with the best possible customer service and support both before and after your purchase.