Dual battery Controller Choices, Decisions Decisions

[Romer]

Thanks for all your inputs. After much deliberation between the painless and Hellroaring, I went with the Hellroaring and ordered it today for a weekend install. The Hellroaring would give me the manual configuration capability plus the automatic configuration and protection capability.

 

[Skillet]

Thanks for all your inputs. After much deliberation between the painless and Hellroaring, I went with the Hellroaring and ordered it today for a weekend install. The Hellroaring would give me the manual configuration capability plus the automatic configuration and protection capability.

Romer, if you don't mind, what was the kit cost?

 

[Romer]

It's actually on their web site in the order form

$179.95 for kit
175 Watt Fuse and Holder $19.5
Spare Fuse $7.50
Remote $42.95

All I need to do is buy some extra wire.

 

[dfmorse]

Ken;

One thing that hasn't been mentioned is the terminals used on the HR unit. They are sized for the HR unit. Don't lose one because they will be hard to replace. If u need some help, let me know.

...

 

[cpg]

Does anyone know whta the milli amp draw of the Hellroaring unit is compared to the P Gate?

 

[Filmpros]

I for one like the questions...as they are in-line with my "A Type" research oriented personality and the constant quest for the best that suits my specific needs. He asked the same questions I was thinking about but did not post..

Romer, you put way too much thought into your mods. I realize your questioning is intentfully pedagogical, but good gawd man just buy one already


See? you already answered your own question. They're all great. You're welcome to mess with my hellroaring next time we hang out, I'll second the comment that he's a cool guy as well. Only time I've ever had to use it was when I left the seat heater on for a week in the garage, but it sure was cool to flip the switch & jump myself. Man that was as move, ok back to

 

[Romer]

I for one like the questions...as they are in-line with my "A Type" research oriented personality and the constant quest for the best that suits my specific needs. He asked the same questions I was thinking about but did not post..

nakman and I are friends, he was just ribbing me. He knows I approach each project like an engineer, like I happen to be.

 

[tech_dog]

It makes perfect sense to over think and over engineer mods to an over built vehicle.

 

[CoveredInRedMud]

Been reading this thread with interest tonight, as I just got an Engel dual battery isolator off eBay for about $100 (THEN went looking for info on mud...). Looks like it simply connects the second battery + to the main battery + (which is connected to the alternator for charging of course). It senses the main battery voltage, cutting the second battery out of connection with the main/alt when the main voltage drops below 11.4v, and allows the second to reconnect for charging only when the main is back above 13.2v. So just prioritiizes the charging power of the alternator to main when it is low, then back to both when main is >13.2 again. This seems like an OK system, and simple to install.
Previous post suggested a 150amp fuse between the isolator and main, in case the main is dead, it won't drain the second all at once, but it seems that the Engel system, with the second being cut off when the main is <11.4v, would offer protection from that scenario. Or am I wrong here? Should I drop in a big-Amp fuse?

 

[Hants]

It is recommended that you fuse EACH battery. This is for protection from shorts, not so much to protect the batteries.