Hi Almot,
The 6345 has a label which identifies the unit as both a Power Converter and Batter Charger. I assume this is what needs to be replaced anyway, but I think you are correct that there is another piece called an isolator which helps facilitate the charging from the engine to the battery. I think I still need a new charger, but also have to figure out how this isolator functions. But frankly, I can be talked down from the idea of the engine charging the battery as it does now. I just thought it was prudent to do this if possible.
As for requiring a power source for topping the batteries on longer trips without shore power. Yes, I have a gen which works great. In fact, in only had 13.5 hours on it when I purchased the Mallard. I had planned on using this for heavier loads like the AC and Microwave. Before I go the solar route, I wanted to have the batteries in place with a battery monitor so I can better understand my power usage as to scale a solar solution appropriately. As you pointed out, I hear too many stories about underpowered systems and I didn't want to make that mistake.
Best,
Tim
Almot wrote:
tsweez wrote:
Okay, so I found the charger under my fridge. It's a Magnetek 6300A Model 6345 which I assume is far from what I need.
This thing is called converter I think, but what is it that you need? If it's boondocking, then converter model doesn't matter. Converter will be charging the batteries from shore power - when you don't really need batteries. Motorhome engine alternator - probably a separate device from that Magnetec - will be charging them as long as the engine is running, which is usually not long.
For a weekend it doesn't matter, you will charge them at home again.
To survive more than a few days without shore power, you need not just enough batteries but also a power source, and the engine is not a good source. Then you either have to run a generator, or a proper solar system - which would include a charger/controller, or both generator and solar. Some people with solar run generator occasionally. Most people with solar use generators a lot, because their solar is not adequate to their needs (needs too high or solar too small and/or not done properly). Microwave alone will cost you half of your daily energy.
