Victron - Orion-Tr Smart 12/12-30A (360W) Isolated DC-DC charger [ORI121236120] Skylla-i Can port for GX device

Can port for GX device connection and a VE

SinusMax - Superior engineering

24V models are available with 16A/25A charge

Or the charger 1+1 model provides 3A to the starter-battery

Victron - Orion-Tr Smart 12/12-30A (360W) Isolated DC-DC charger [ORI121236120] Skylla-i Can port for GX deviceThe Orion Tr Smart DC DC charger is an adaptive 3 stage charger (bulk absorption float) designed for dual battery systems, such as in vehicles or on boats where the starter battery (hence the alternator) is used to charge the service battery. The name "Smart" comes from its built in Bluetooth connection, where the charger can be monitored and configured via Bluetooth and can be remotely controlled via a remote on off switch and has an engine running