This is a automatic DC-DC charger that can charge the main battery through the a and starter battery, or Solar panels charge the main battery (some models), DC-DC battery charger designed specifically for motorhome, campers, ships etc.

B2B Charge：

It means to charge the main battery through alternator and starter battery. If it is not used in the vehicle, you can also use one battery to charge another battery.

1. When the vehicle is running, the vehicle alternator can quickly charge the main battery through the charger at full power

2. The charger can charge the main battery according to the specified voltage and current by boosting or stepping down to ensure that the main battery is in accordance with the standard. charging curve charging

MPPT Solar Charge

1.The charger can increase the charging efficiency of the solar panel by 10-30% through MPP technology (search for the maximum power point)

2. The charger can charge the main battery according to the specified current by boosting or stepping down to ensure that the main battery is charged according to the standard

charge curve charging

3. When the vehicle is not used for a long time, you can maintain a small trickle charge flow for the starter battery to ensure that the starter battery has enough electricity to start the vehicle.