New Jeanneau comes with the following setup.
2x80AH house batteries
1x80AH engine battery
The alternator is connected to a Cristec battery isolator. This is a MOSFET isolator (as opposed to a diode one) and the voltage drop is negligible at less 10 amps according to the literature attached below.
There is also a battery charger with 2 outputs; one output per battery bank.
I am going to be on mooring with this boat and not using shore power for the most part. In addition, I will be able to sail on/sail off so most days I won't even need the engine at all.
My goal is to keep the batteries topped off. I'm not looking to keep the fridge powered up...just running the basic DC needs....lights, fan or two, stereo, vhf, navigation electronics, etc. a couple days a week.
I figure a small, flexible 50W panel that I can stow when sailing should give me at least 8 to 10AH per day on average which should cover my needs.
My question is this. Can I hook up this small panel with a basic PWM controller connected to the "input" side of the battery isolator? In theory, this should keep both battery banks topped off as long as there is no voltage drop. I understand ACRs and combiners tend to be preferred here, but is there a need to change to an ACR just for this purpose?
2x80AH house batteries
1x80AH engine battery
The alternator is connected to a Cristec battery isolator. This is a MOSFET isolator (as opposed to a diode one) and the voltage drop is negligible at less 10 amps according to the literature attached below.
There is also a battery charger with 2 outputs; one output per battery bank.
I am going to be on mooring with this boat and not using shore power for the most part. In addition, I will be able to sail on/sail off so most days I won't even need the engine at all.
My goal is to keep the batteries topped off. I'm not looking to keep the fridge powered up...just running the basic DC needs....lights, fan or two, stereo, vhf, navigation electronics, etc. a couple days a week.
I figure a small, flexible 50W panel that I can stow when sailing should give me at least 8 to 10AH per day on average which should cover my needs.
My question is this. Can I hook up this small panel with a basic PWM controller connected to the "input" side of the battery isolator? In theory, this should keep both battery banks topped off as long as there is no voltage drop. I understand ACRs and combiners tend to be preferred here, but is there a need to change to an ACR just for this purpose?
Attachments
-
159.4 KB Views: 196