Progressive Dynamics and AGM batteries
I have a Bigfoot 15C9.5 truck camper with a 45amp Progressive Dynamics converter PD4645V with charge wizard. It's less than one year old. And I believe it is a four stage charger. I have two question...
Forum Discussion
You need to know the charging specifications for those AGMs. Some might say charging is 14.5-9v and Float 13.4-7 say. In that case the CW 14.4/13.6 isn't quite right, but close (except in cold weather when all spec voltages are higher for temp compensation.)
The other issue is that your AGMs will be truly full when the charging amps at that charging voltage drop to near zero amps. This means you need an ammeter to know when you are "there" and can drop to the specified Float voltage.
Without that ammeter, you are guessing. You can't tell when you are done.
With your second battery far away, it is likely you have the load and charging done on the one battery, with the other as the "downstream battery" This is usually bad for the downstream battery. Best to have them "balanced" by having the load and charging "across" both batteries.
The other issue is that your AGMs will be truly full when the charging amps at that charging voltage drop to near zero amps. This means you need an ammeter to know when you are "there" and can drop to the specified Float voltage.
Without that ammeter, you are guessing. You can't tell when you are done.
With your second battery far away, it is likely you have the load and charging done on the one battery, with the other as the "downstream battery" This is usually bad for the downstream battery. Best to have them "balanced" by having the load and charging "across" both batteries.
