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M380 (Unique Issues) If you have a unique issue with your M380 model coach and it can't be answered in one of the other forums here, then this is where you can list it.....list your M380 Parts here too.

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  #1  
Old 12-23-2015
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Default An improved Negative Battery Cable

Don B posted awhile back an improvement for house battery charging is a modified neg. cable. Here is a pic of a cable Songbird made for me...contact Steve if you want one..
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Old 12-23-2015
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Originally Posted by Dc2x4drvr View Post
Don B posted awhile back an improvement for house battery charging is a modified neg. cable. Here is a pic of a cable Songbird made for me...contact Steve if you want one..
I'm not curious - - just nosey
What makes this cable an improvement over other cables.
FWIW - I'm of the opinion individual cables to a common point or distribution block are better than daisy chained cables. All batteries subjected to the same charge and same draw.
But what dew eye no
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Old 12-23-2015
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I think some people have gone as far as to make all cables the same length. Maybe a balance or equal draw, drain, ground thing.
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Old 12-23-2015
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I believe for high amperage battery installations this cabling offers improved, more balanced charging..here is a graphic Don B posted, we copied the middle option.
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Old 12-23-2015
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Originally Posted by Dc2x4drvr View Post
I believe for high amperage battery installations this cabling offers improved, more balanced charging..here is a graphic Don B posted, we copied the middle option.
Very interesting - you might be on to something there.
I sure would like to see some comparison data taken over a period of time.
I don't want to get into a tires / oil discussion here but suffice it to say my next set of batteries will definitely be. . . . . . . . . . . . . . . . . . . . wireless
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Old 12-23-2015
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Speaking of wireless,i have a deal on wireless 50amp power cords.
Only problem with them is you can't stand or walk between the two antennas when the AC's are running.
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Old 12-24-2015
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Quote:
Originally Posted by KCSS View Post
FWIW - I'm of the opinion individual cables to a common point or distribution block are better than daisy chained cables. All batteries subjected to the same charge and same draw.
Absolutely! The point here is that ALL alternative methods are better than daisy chains, but Blue Bird set the M380 up with a daisy chain!

They also reduced the cable size after the connection to the first battery in the chain. My replacements maintained the same 4/0 that is used from the battery terminals to the inverter.

I had to get new cables anyway when the batteries were replaced, since the OEM were posts and the new have tabs.
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Old 12-24-2015
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I am moving my "chassis" batteries to the vacant prior propane bay. While doing this I changed the connections to a common feed for both pos and negative. See picture. I don't however expect to see any difference in life or performance in the real world. Voltage drop in A foot of 4/0 cable for the several minutes a day that we really pull any amps is so small it doesn't matter IMHO. After 6 or7 years I could not see any difference in either voltage or by load testing my batteries while they were out. Not going to get into a long discussion with the electronics purists however.
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Old 12-24-2015
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Originally Posted by Randy Dupree View Post
Speaking of wireless,i have a deal on wireless 50amp power cords.
Only problem with them is you can't stand or walk between the two antennas when the AC's are running.
Not a problem if you are wearing a lead suit. now the problem becomes how to actually move in that suit
Golf cart, anybody
On second thought I would opt for the Star Trek transporter
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Old 12-24-2015
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Not a problem if you are wearing a lead suit. now the problem becomes how to actually move in that suit
Golf cart, anybody
On second thought I would opt for the Star Trek transporter
Dilithium crystals, the only way to go
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