Reply
 
Thread Tools Display Modes
Old 07-13-2019, 09:05 PM   #1
Senior Member
 
Sagecoachdriver's Avatar
 
Join Date: Jun 2015
Location: Southern California
Posts: 1,779
Fuse size for battery cut-off of new bus bar

I am about to buy Lithium batteries for my Forester and going to clean up the wiring mess on top of the batteries in the step compartment. The bus bar is rather larger with 4 posts and just fits in the open area at one end of the battery compartment. I will have 3 wires going to the bus bar from the converter/charger, Battery cut-off/ generator and the BIM battery isolation manager. The 4th wire will go from the buss bar to the positive post on the Lithium battery. There are 2 wires that are 2awg and 1 that is 4awg. Two of the wires have bussman fuses of 60 and 80 amps.
My new cable coming from the bus bar and going to the positive is 2 awg marine and can take up to 145amps. I want to add a Bussman resettable fuse in line so I can totally disconnect the Lithium batteries from any draw periodically when just sitting in my driveway. I was thinking of either a 100 amp or should I go with 150amp resettable fuse. Of course, I may have to go to a 1 awg wire with the 150amp.
Attached Thumbnails
Click image for larger version

Name:	IMG_1490.jpeg
Views:	16
Size:	115.1 KB
ID:	209808   Click image for larger version

Name:	IMG_1420.jpg
Views:	17
Size:	365.2 KB
ID:	209809   Click image for larger version

Name:	71FJ6J54DgL._SL1200_.jpg
Views:	15
Size:	128.1 KB
ID:	209810  
__________________

__________________
2004 Winnebago Minnie 22e(went to a nice family Oct 3, 2015)
2016 Forester 2701DS (Aug 31, 2015)
2017 Camping 12 trips 38 nights
2018 Camping 10 trips 38 nights
2019 Camping 4 trips 13 nights
Sagecoachdriver is online now   Reply With Quote
Old 07-15-2019, 11:56 AM   #2
Senior Member
 
Sagecoachdriver's Avatar
 
Join Date: Jun 2015
Location: Southern California
Posts: 1,779
With no replies, I went ahead and ordered a 100amp Buss fuse and will see if it trips. If it does, then I will return it for the 125amp or even the 150amp and change the cable to 1awg. Really just want it to totally disconnect the lithium batteries from any draw when the MH is not in use.
__________________
2004 Winnebago Minnie 22e(went to a nice family Oct 3, 2015)
2016 Forester 2701DS (Aug 31, 2015)
2017 Camping 12 trips 38 nights
2018 Camping 10 trips 38 nights
2019 Camping 4 trips 13 nights
Sagecoachdriver is online now   Reply With Quote
Reply

Tags
battery, fuse

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



» Featured Campgrounds

Reviews provided by


Disclaimer:

This website is not affiliated with or endorsed by Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 12:25 PM.