Charging external battery
What are the pro/cons/concerns? I want to charge my trolling (marine semi-deep cycle) battery (80 AH) using solar in the afternoon after its been discharged 30-50%. House batt SOC would be 90% or ...
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Bend
Now that I understand better your situation (guess I should have read your signature)
Directly connecting the Array to the battery could be a solution to getting your battery charged a bit quicker - I was a bit concerned if you were running a high voltage array (as I do) with a direct connection to the battery. My rigs got 550watts at 40Vdc which can/will destroy a battery in no time if directly connected to a small battery.
As RJ said a jumper cable to the trolling battery from the house battery will indeed help to get it topped up after a day of fishing.
Have not seen a Helitrope for several years now (as I remember they were AM Solar's controller of choice a few years back) not sure if it requires a battery connection before an array connection - check it out before disconnecting your house battery from the controller.
Now that I understand better your situation (guess I should have read your signature)
Directly connecting the Array to the battery could be a solution to getting your battery charged a bit quicker - I was a bit concerned if you were running a high voltage array (as I do) with a direct connection to the battery. My rigs got 550watts at 40Vdc which can/will destroy a battery in no time if directly connected to a small battery.
As RJ said a jumper cable to the trolling battery from the house battery will indeed help to get it topped up after a day of fishing.
Have not seen a Helitrope for several years now (as I remember they were AM Solar's controller of choice a few years back) not sure if it requires a battery connection before an array connection - check it out before disconnecting your house battery from the controller.
