this is as much as I know right now.
The house and start are completely separate. Even separate switches.
the start battery has its own on/off switch But, then the 3 house
batteries are separated into a off/1/both/2 switch. two batteries on 2
and one batter on 1. I was thinking the regulator would prioritize the
start battery then send the current to the house when the start was
satisfied. I was wondering if the start battery never got satisfied
would the regulator never send the current to the house bank?
On 7/16/2018 9:48 AM, Joel Aronson via CnC-List wrote:
Also depends on which battery is supposed to be the first one charged.
On Mon, Jul 16, 2018 at 9:36 AM, Josh Muckley via CnC-List
<cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>> wrote:
I don't know what type of setup you have regarding the house and
starting battery. Is it a switch, acr, or echo-charge? Depending
on the answer, yes a failed start battery could affect the entire
system.
Josh Muckley
S/V Sea Hawk
1989 C&C 37+
Solomons, MD
On Mon, Jul 16, 2018, 8:20 AM Danny Haughey via CnC-List
<cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>> wrote:
well, the battery was showing 12.7 by the time I got it back
to the boat. It would not start the engine. I did jump start
it and found the alternator was putting out 14.4 volts. So I
ran out and bought an interstate starting battery. I
installed that, started the engine and got 14.4 volts at the
battery terminals with the engine running. Then, I went sailing!
Anyway, my question now is, if the starting battery was not
taking the charge, would the alternator just keep trying to
charge the starting battery and never reach a full charge so
never send anything to the house? In essence, the spent
battery was the break in the system like a bucket with a big
hole in it?
On 7/15/2018 8:50 AM, Josh Muckley via CnC-List wrote:
Disconnect for 24 hours and then take the voltage again.
Josh
On Sun, Jul 15, 2018, 8:47 AM Danny Haughey via CnC-List
<cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>> wrote:
12.9 reading with charger off. It's a smart charger and
will slow and then stop charge as battery charges. It is
sitting with charger attached just reading voltage
Thanks,
Danny
-------- Original message --------
From: Josh Muckley via CnC-List <cnc-list@cnc-list.com
<mailto:cnc-list@cnc-list.com>>
Date: 7/15/18 8:04 AM (GMT-05:00)
To: cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>
Cc: Josh Muckley <muckl...@gmail.com
<mailto:muckl...@gmail.com>>
Subject: Re: Stus-List Charging issues
12.9v on or off the charger? That's too low if on the
charger. Even the smallest trickle chargers put out ~13.5v
It is possible to have a one of the six cells go bad,
reducing the battery's appropriate full charge voltage to
10.6 instead of 12.7 the charger is dumb and keeps
trying to put as much as 14.7 into the battery. This
extra voltage overcharges the battery and boils off
electrolyte. Under this condition the battery voltage
may never get to 14.7 but it can easily get to 12.7. It
will quickly decay and stabilize near 10.6-ish when the
charger is removed. This may take a few hours to occur.
If/When a load is applied the voltage will drop
dramatically and stabilize near 10.6v. If this is the
case then you need a new battery.
Josh Muckley
S/V Sea Hawk
1989 C&C 37+
Solomons, MD
On Sun, Jul 15, 2018, 7:29 AM Danny Haughey via CnC-List
<cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>> wrote:
Hi Rick,
Thank you for the insight. The start battery showed
just 12.1 when I put it on the charger. I just went
out and battery now shows full at 12.9 volts.
It seems like the charge isn't getting to the
batteries. This is one system I haven't dug into
yet. I guess that's going to change...
I think I need to find a diagram somewhere
Thanks,
Danny
-------- Original message --------
From: Rick Brass via CnC-List <cnc-list@cnc-list.com
<mailto:cnc-list@cnc-list.com>>
Date: 7/14/18 11:09 PM (GMT-05:00)
To: cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>
Cc: Rick Brass <rickbr...@earthlink.net
<mailto:rickbr...@earthlink.net>>
Subject: Re: Stus-List Charging issues
Generally, yes, if you are showing about 14 volts
when the engine is running, the alternator is
probably OK.
When you say the start battery is not charging, is it
safe to assume that the start battery will not start
the engine?
Under normal circumstances, and depending on the
Amp-Hour capacity of the start battery, it will
probably never get below 95% to 99% state of charge.
(Unless, of course, you are using it to also power
your house loads.)
For example, the 36 HP Universal in my 38 draws 175
amps for about 30 seconds in starting, or about 1.4
AH. That is about 1.3% discharge on the 105AH deep
cycle battery I use for starting. (And only for
starting except in an emergency)
So the start battery is capable of reaching full
charge in just a few minutes of engine run time, and
the full output from the alternator then gets
directed to the house bank if that is at a lower
state of charge. If both are fully charged, the
current flow just creates heat.
Check your start battery with a volt meter and both
engine and battery switch turned off. If you get 12.6
volts or more, everything is probably OK.
If the start battery won’t start the motor, you
probably need a new battery.
Rick Brass
Washington, NC
*From:*CnC-List [mailto:cnc-list-boun...@cnc-list.com
<mailto:cnc-list-boun...@cnc-list.com>] *On Behalf Of
*Danny Haughey via CnC-List
*Sent:* Saturday, July 14, 2018 7:31 PM
*To:* cnc-list@cnc-list.com
<mailto:cnc-list@cnc-list.com>
*Cc:* Danny Haughey <djhaug...@juno.com
<mailto:djhaug...@juno.com>>
*Subject:* Stus-List Charging issues
So my gauge shows 14amps while motoring but after a
long motoring trip my starting battery and house
batteries are not charging. The house batteries
charge under shore power.
I'm taking the starting battery home to throw on a
charger to see if it will take a charge. If oin l
I'm seeing the 14 amps can I assume the alternator is
working?
Thanks,
Danny
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Thanks everyone for supporting this list with your contributions. Each and
every one is greatly appreciated. If you want to support the list - use PayPal to
send contribution --https://www.paypal.me/stumurray
<https://www.paypal.me/stumurray>
_______________________________________________
Thanks everyone for supporting this list with your
contributions. Each and every one is greatly appreciated. If
you want to support the list - use PayPal to send contribution
-- https://www.paypal.me/stumurray
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Thanks everyone for supporting this list with your contributions.
Each and every one is greatly appreciated. If you want to support
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Thanks everyone for supporting this list with your contributions. Each and
every one is greatly appreciated. If you want to support the list - use PayPal
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every one is greatly appreciated. If you want to support the list - use PayPal
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