direct-charging a six volt bank from a 12 volt charger

[cal40john]

Originally Posted by Jonathan Reiter

I have an electrical question that someone with experience with solar panels and six volt batteries might be able to help with. We're not looking for opinions that begin with..." you might try"... or," I would do this 1st and see what happens"...we need a knowledge- based answer based on solid fact, please...no offense intended to the well-meaning. Simply put: the six solar panels feed a controller that charges a four- battery bank; two six volt batts wired in series, two six volt batts wired in pararallel, delivering 12 volts to the boat's system. The question is: if it becomes necessary, in an emergency, to direct-charge the batt bank from the 1800 watt Homelite generator, where would you connect the charging leads?

Why do you want someone with solar panel experience to give you advice about what kind of outputs are on your generator?

I found your post not clear and demanding. If you insist on professional answers only, don't post on a free internet forum, pay your local marine electrician.

John

[Maine Sail]

Originally Posted by Jonathan Reiter

I have an electrical question that someone with experience with solar panels and six volt batteries might be able to help with. We're not looking for opinions that begin with..." you might try"... or," I would do this 1st and see what happens"...we need a knowledge- based answer based on solid fact, please...no offense intended to the well-meaning. Simply put: the six solar panels feed a controller that charges a four- battery bank; two six volt batts wired in series, two six volt batts wired in pararallel, delivering 12 volts to the boat's system. The question is: if it becomes necessary, in an emergency, to direct-charge the batt bank from the 1800 watt Homelite generator, where would you connect the charging leads?

If your solar system is charging the bank correctly follow those wires and connect to the same place. Should be battery + and battery -. Red wire will go to + battery post and black wire will go to - battery post.

Your part about the two six volts in series (12V) and two six volts in parallel (6V) makes no sense as written so I am going to guess you have the bank wired in series / parallel..

Connect charge sources to GND Yes and POS if this is how your bank of four is wired....

[goboatingnow]

Is it just me, but I get terribly annoyed when someone like the OP comes on " demanding " answers. Then compounds it by looking for professional style replies.

Hey OP I'm a professional electronics engineer, I can give you a 100 % answer. My daily rate about 800 bucks I take PayPal.

Other then that just be nice huh

Dave

[Jonathan Reiter]

Thanks to all who contributed their opinions and "help". Consider this thread closed. jls

[DeepFrz]

Is it just me, but I get terribly annoyed when someone like the OP comes on " demanding " answers. Then compounds it by looking for professional style replies.

Nope, not just you...