dc to DC Renogy charger
Hi all, I finally have the dc to DC 20 amp Renogy installed. It works, but not quite as I expected. It appears to not "like" solar much--cutting way back on amps, even though the dip switches...
Forum Discussion
12thgenusa wrote:
Have you measured your input amps? I've read these take 30 amp input to produce 20 amps at the battery.
I'm thinking of installing one for my 5th wheel. Concerned about the extra 30 amp draw on the alternator, long run of large gage wire (at least 6 ga) and an additional disconnect on the tow vehicle.
Input amps were measured "on the bench" and in the RV before the seat was reinstalled. As expected it was around 30 amps.
There was no drop in output voltage from the alternator during a short test.
I did not test with the engine running and the microwave heating.
In the bad old days when I'd load the alternator to 111 amps (running the electric side of the water heater) the starter battery would sink to 12 volts in about 20 minutes. Then I'd let the system run for 40 minutes before I'd have "another go" at heating the water.
I will be starting my last trip of 2022 on Tuesday. I'll probably try running the fridge on DC and on 120 volts. I already know the fridge is a 2:3 duty cycle.
