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Author Topic:   Battery Integrator

mphillips posted 03-29-2009 02:18 PM ET (US)
I have fitted two (main and house) batteries onto my 17' bay boat.
In order for the alternator to charge each battery concurrently while underway, but not let the loads on the house battery drain the main while sitting in the water, I have fitted a Newmar BI-100 battery integrator.
However, in order for the onboard 110V charger to charge each battery separately when back on land, I added a switch which cuts the connection between the two batts' pos terminals (running thru the integrator) during 110V charging.
Did I wire this properly?
Thanks,
Mike
Bella con23 posted 03-29-2009 06:03 PM ET (US)
Can you post a clear picture? Maybe draw a picture and post either so we get a clear vision of what your trying to accomplish.
Joe
mphillips posted 03-29-2009 08:07 PM ET (US)
Please see attached photo of (crude) wiring diagram.
As I understand it, the Battery Integrator connects the two batteries whenever it "sees" more than 13V. This allows my single motor alternator to charge both batteries while running. When the Integrator "sees" less than 13V (no charging occurring, motor off) it separates the two batteries so that loads attached to House battery will not drain down the Main battery.
The problem seems to be my 110V onboard charger, which has smart circuitry to charge each battery according to its need. When I plug this in, I use the Switch to override the Integrator's tendency to connect the two batteries together (since the charger is sending out more than 13V), thus letting each battery charge according to its need.
I wired the Newmar BI-100 Integrator and the 110V Battery Charger as directed by the manufacturers, but have not seen any information on how to make the two play together.
I just want someone with a better marine electrical understanding than I to check it out.
Thanks.
mphillips posted 03-29-2009 08:14 PM ET (US)
I found a diagram online at the link belowof the Newmar BI-100 Integrator.
Just add in a pos and neg wire to each battery from a 110V charger and switch the pos lead from the Integrator to the main battery and you've got my current condition.
http://www.newmarpower.com/Battery_Isolator_Integrators/Battery_Isolator_Integrators.html
jimh posted 03-29-2009 09:42 PM ET (US)
The Newman Battery Integrator appears to be a simple automatic combiner relay or voltage sensitive relay.
If the dual battery charger does not want the two batteries to be connected in parallel during charging, you will have to disable the operation of the integrator or automatic combiner relay. Or connect the AC charger only to one battery, and let the ACR parallel them during charging with the AC powered charger.
Bella con23 posted 03-29-2009 10:17 PM ET (US)
http://www.newmarpower.com/Battery_Isolator_Integrators/ Battery_Isolator_Integrators.html
Joe
glen e posted 03-29-2009 11:03 PM ET (US)
[BEP Marine electrical] components are used by many high end CC mfrs these days. They are easy to hook up and work very well. Bluewaterpirate here has posted pics on his install here. I have installed four and they are the easiest I have found yet to solve multiple battery charging.
http://www.bepmarine.com/Clusters-180.html

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Author	Topic: Battery Integrator
mphillips	posted 03-29-2009 02:18 PM ET (US) I have fitted two (main and house) batteries onto my 17' bay boat. In order for the alternator to charge each battery concurrently while underway, but not let the loads on the house battery drain the main while sitting in the water, I have fitted a Newmar BI-100 battery integrator. However, in order for the onboard 110V charger to charge each battery separately when back on land, I added a switch which cuts the connection between the two batts' pos terminals (running thru the integrator) during 110V charging. Did I wire this properly? Thanks, Mike
Bella con23	posted 03-29-2009 06:03 PM ET (US) Can you post a clear picture? Maybe draw a picture and post either so we get a clear vision of what your trying to accomplish. Joe
mphillips	posted 03-29-2009 08:07 PM ET (US) Please see attached photo of (crude) wiring diagram. As I understand it, the Battery Integrator connects the two batteries whenever it "sees" more than 13V. This allows my single motor alternator to charge both batteries while running. When the Integrator "sees" less than 13V (no charging occurring, motor off) it separates the two batteries so that loads attached to House battery will not drain down the Main battery. The problem seems to be my 110V onboard charger, which has smart circuitry to charge each battery according to its need. When I plug this in, I use the Switch to override the Integrator's tendency to connect the two batteries together (since the charger is sending out more than 13V), thus letting each battery charge according to its need. I wired the Newmar BI-100 Integrator and the 110V Battery Charger as directed by the manufacturers, but have not seen any information on how to make the two play together. I just want someone with a better marine electrical understanding than I to check it out. Thanks.
mphillips	posted 03-29-2009 08:14 PM ET (US) I found a diagram online at the link belowof the Newmar BI-100 Integrator. Just add in a pos and neg wire to each battery from a 110V charger and switch the pos lead from the Integrator to the main battery and you've got my current condition. http://www.newmarpower.com/Battery_Isolator_Integrators/Battery_Isolator_Integrators.html
jimh	posted 03-29-2009 09:42 PM ET (US) The Newman Battery Integrator appears to be a simple automatic combiner relay or voltage sensitive relay. If the dual battery charger does not want the two batteries to be connected in parallel during charging, you will have to disable the operation of the integrator or automatic combiner relay. Or connect the AC charger only to one battery, and let the ACR parallel them during charging with the AC powered charger.
Bella con23	posted 03-29-2009 10:17 PM ET (US) http://www.newmarpower.com/Battery_Isolator_Integrators/ Battery_Isolator_Integrators.html Joe
glen e	posted 03-29-2009 11:03 PM ET (US) [BEP Marine electrical] components are used by many high end CC mfrs these days. They are easy to hook up and work very well. Bluewaterpirate here has posted pics on his install here. I have installed four and they are the easiest I have found yet to solve multiple battery charging. http://www.bepmarine.com/Clusters-180.html