I will be fitting a Lithium battery in the future and in preparation for that I need to fit a DC/DC charger.
The power supply is via a Nordelettronica NE237, which has a built in charger and split relay.
I understand that it is not possible to easily disable the split relay in this unit.
There are only 3 wires (excluding the 240V) that connect to the NE237.
Live from the starter battery, Earth and live from leisure battery.
Can I connect a DC/DC charger using these existing wires?
It would appear to be a simple case of disconnecting the live and earth connections from the starter battery where they connect to the NE237, and connecting these to the DC/DC charger. Then connect a new live and earth wire from the charger to the NE237.
If I use a 30A charger the existing wiring should be more than adequate.
I would likely use a Victron 30A DC/DC charger. It doesn't require a D+ connection as it automatically detects the voltage from the alternator. (The alternator is a non smart type)
The NE237 charger doesn't have a Lithium setting but it does have a Gel setting which I understand would be adequate.
The solar controller is a Votronic with a Lithium profile.
I know that 30A will not give super fast charging, but my aim is to protect the battery/alternator and also not have to fit new wiring etc.
Does this all sound feasible or am I over simplifying it?
The power supply is via a Nordelettronica NE237, which has a built in charger and split relay.
I understand that it is not possible to easily disable the split relay in this unit.
There are only 3 wires (excluding the 240V) that connect to the NE237.
Live from the starter battery, Earth and live from leisure battery.
Can I connect a DC/DC charger using these existing wires?
It would appear to be a simple case of disconnecting the live and earth connections from the starter battery where they connect to the NE237, and connecting these to the DC/DC charger. Then connect a new live and earth wire from the charger to the NE237.
If I use a 30A charger the existing wiring should be more than adequate.
I would likely use a Victron 30A DC/DC charger. It doesn't require a D+ connection as it automatically detects the voltage from the alternator. (The alternator is a non smart type)
The NE237 charger doesn't have a Lithium setting but it does have a Gel setting which I understand would be adequate.
The solar controller is a Votronic with a Lithium profile.
I know that 30A will not give super fast charging, but my aim is to protect the battery/alternator and also not have to fit new wiring etc.
Does this all sound feasible or am I over simplifying it?