Does the onboard power supply of your motorhome leave nothing to be desired? Then you should get reinforcements onboard! The Dometic Büttner MT BCB40/40/30IUoU offers you an all-round carefree solution for optimal charging of your onboard battery(ies). Equipped with the latest IU0U charging technology, the battery control booster can be used for all types of batteries: AGM, gel, liquid acid and LiFePO4. It supports battery charging while driving and on the 230 V mains. And also takes over the complete charge monitoring. Ideal as a supplement to the existing charging technology or as a sole charging centre. Note: For vehicles with integrated load electronics central electronic unit, you will also need the optionally available high-load relay for retrofitting.