| [GMCnet] More battery discussion [message #356210] |
Mon, 29 June 2020 03:09  |
Gerard Hickey
Messages: 53
Registered: June 2019
Karma:
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I was following the recent discussion about the batteries with a
particular interest. I have now completely replaced the line from the
engine batteries to the house batteries. The line was definitely the
original line installed and the line had not faired very well in the
past 45 years as the line was very corroded and all the insulation was
chipping off. So I am glad that I have the line replaced now.
I also want to thank those that discussed the dangers of charging two
12v batteries in parallel. When I picked up my RV last year it had two
dissimilar batteries for the house batteries. I had planned in all the
rewiring that I am doing to put both in parallel. On first thought it
seemed like a great plan, but I am glad to read the discussion about the
internal resistance of the batteries. Never would have thought about it
from that angle and quite possibly saved me a disaster.
The solenoids at each end of the line appear to be original also. I was
thinking about replacing them also, but then thought about my plans to
replace the battery isolator. I have been looking at replacing it with a
Victron Cyrix-ct or a Li-Bim isolation module (if anyone has any strong
opinions of either, I would love to hear them). In replacing the battery
isolator with current technology is there still any need for the
solenoids? I can not think of a reason but I figured I would ask here of
those of you that are much more knowledgeable about the GMC electrical
system.
One other question also. In the generator compartment above the solenoid
there is a device about 1.5 inches in diameter with two terminals on it.
It appears to me to be a fuse as it appears to be a short between the
terminals. Although I as am writing this I started to wonder if it is
actually a diode to allow current to flow back to the engine compartment
for boosting the current to the starter motor. Can some one identify
this device or confirm my latest suspicion?
--
Gerard Hickey / WTØF IRLP:3067/Echolink:529661
hickey@kinetic-compute.com DMR: 3102272
425-395-4554
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