Help with Smart Battery Isolator/ dual batt system
#1
Help with Smart Battery Isolator/ dual batt system
I recently installed a dual battery system in my Suburban, using a Cole Hersee Smart Battery Isolator Battery-Related Products | Battery Isolators48530 | Cole Hersee - Littelfuse . If anyone is familiar with this, I have a question- I wired everything exactly as directed, which included a fuse between each battery and the isolator, BUT it didn't specify what amperage the fuses should be. I used what I had available, 60A AGU (glass) fuses, inside weatherproof plastic fuse holders. These fuse holders with this type of fuse builds up heat at the ends, and since the fuseholders are sealed, the heat cannot dissipate. One fuse blew cleanly at the AUX battery, the other (at the starting battery) blew also, but heated up to the point of melting the threads on the fuseholder before opening the circuit. Before I replace the fuses/ holder with something more robust, I need to know what size fuses to use. My alternator is stamped 124A. Any help is appreciated.
#2
#3
I hadn't even thought about the starter draw with the boost. I think I'm going to switch to high amp circuit breakers or cut them out altogether like you mentioned- the only thing they really are protecting is if one of the cables gets loose and grounds out, right? If I do go with the breakers, any idea what a typical starter pulls in amps?
#4
#5
I get your point, but isn't a fusible link a kind of fuse? Because I have one of those on my starter cable. Not being a smart a$$, I promise. I'm about ready to do like you said and disregard the fuses entirely, just make sure all my connections are good and the cables don't rub anywhere.
#6
OK, say you go the fuse route, slow-blow high amp fuses be the appropriate type of fuse?
Something like this?
Something like this?
#8
#9
I get your point, but isn't a fusible link a kind of fuse? Because I have one of those on my starter cable. Not being a smart a$$, I promise. I'm about ready to do like you said and disregard the fuses entirely, just make sure all my connections are good and the cables don't rub anywhere.
OK, say you go the fuse route, slow-blow high amp fuses be the appropriate type of fuse?
Something like this? Amazon.com: Blue Sea 5107 Fuse Mega 250 Amp/32 Volt: Car Electronics
Something like this? Amazon.com: Blue Sea 5107 Fuse Mega 250 Amp/32 Volt: Car Electronics
If you go with marine grade terminals with the threaded posts for all your electrical connections to mount to, where can you get the main ground cable and positive cable with the lugs on the end to replace the factory cables?
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grandkodiak
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05-13-2012 05:29 PM