Ablemail has successfully implemented 60A battery to battery (b2B) charging on the latest 2023 VW Crafter . The latest VW Crafter smart alternator output is 11-12V for a considerable proportion of the operating time and this prevents many standard b2b chargers /charging profiles effectively charging the auxiliary leisure battery . Ablemail has developed a system which reliably operates under these conditions . We look forward to sharing this system with many VW Crafter converters .