! finally got to test the RENOGY 40A DC to DC Charger on my truck and my portable battery.
Truck is a 2018 RAM 2500 / 6.4L Gas with 220A "smart" alternator
Battery is a AGM 100Ah in a portable battery box I made here .... 12V AGM Portable Generator / Battery Box | RVB Precision
I ran a 15' / 6g wire from my winch connection connected directly to the trucks battery.
The RENOGY DC to DC Charger will be used in a couple different vehicles and in my boat so it was made portable with a couple Anderson high current connectors.
I didn't have the correct fuse for the pictured fuse block so for the test I simply jumped across it.
The Green wire is the switched lead to turn the unit on and will be connected to a switched 12V lead in the different vehicles when those vehicles are wired. (Notice, the RENOGY owners manual has a mistake. They say to connect this wire to the + battery or alternator terminal. If you do that the DC to DC charger stays on all the time and will drain your start battery if the vehicle is not running.)
So...From the trucks battery to the DC to DC Charger and then to the Aux battery......Pretty easy.
This Aux battery was at 98.1% so the amps it was requesting was minimal.
Only 4.06 Amps being sent to Aux battery
Voltage from the trucks battery....Float Mode
Tomorrow I'll test it in my Toyota Venza to see how it works with that vehicle.
Once it is all installed in the vehicles I'll do a more complete write up.
Truck is a 2018 RAM 2500 / 6.4L Gas with 220A "smart" alternator
Battery is a AGM 100Ah in a portable battery box I made here .... 12V AGM Portable Generator / Battery Box | RVB Precision
I ran a 15' / 6g wire from my winch connection connected directly to the trucks battery.
The RENOGY DC to DC Charger will be used in a couple different vehicles and in my boat so it was made portable with a couple Anderson high current connectors.
I didn't have the correct fuse for the pictured fuse block so for the test I simply jumped across it.
The Green wire is the switched lead to turn the unit on and will be connected to a switched 12V lead in the different vehicles when those vehicles are wired. (Notice, the RENOGY owners manual has a mistake. They say to connect this wire to the + battery or alternator terminal. If you do that the DC to DC charger stays on all the time and will drain your start battery if the vehicle is not running.)
So...From the trucks battery to the DC to DC Charger and then to the Aux battery......Pretty easy.
This Aux battery was at 98.1% so the amps it was requesting was minimal.
Only 4.06 Amps being sent to Aux battery
Voltage from the trucks battery....Float Mode
Tomorrow I'll test it in my Toyota Venza to see how it works with that vehicle.
Once it is all installed in the vehicles I'll do a more complete write up.
