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Old 08-21-2015, 07:06 AM   #1
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Is it true about battery charge?

Hello, my name is Russ, and I'm a virgin cruiser!

ok, YES! I've now left the battery switches on, NOT ONCE but twice!
and YES, i've have to jump start this thing with my truck!
I've been lucky twice now!

My question, when at an RV park, and hard wired to the 50amp post,
should i leave BOTH of my battery switches ON, so the batteries can be
charged during the 50am hook up time? simply, do they recharge during this hook up?
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Old 08-21-2015, 07:18 AM   #2
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Yes!
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Old 08-21-2015, 07:42 AM   #3
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Hi Guys,
Don't have the same system as you (just one button Store/Use). But when in the "Use" position the house batteries will be charged from the shore power, generator and the chassis engine when running or plugged in.
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Old 08-21-2015, 08:32 AM   #4
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Yes leave them on to keep things charged. Your rig may not charge the chassis batteries while plugged into shore power. Most folks install a trickle charger from the house bats to the chassis bats to keep them charged.
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Old 08-21-2015, 08:42 AM   #5
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Quote:
Originally Posted by rustyjax View Post

ok, YES! I've now left the battery switches on, NOT ONCE but twice!
and YES, i've have to jump start this thing with my truck!

Since you say the switches were "ON" and the batteries ran down......I would
Say you either don't have a charger on-board for the chassis batteries, or it is not working. Many coaches DONT automatically charge the engine starting battery while plugged in to shore power.....yours maybe one of them. You can get a small trickle charger to mount permanently to the engine starting batteries for this purpose.....or get a small thing called a "Trik-l-Start" which will divert charging current from the main battery bank to the engine starting battery when it needs it.
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Old 08-21-2015, 08:45 AM   #6
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Here is what I'm talking about.

http://www.lslproducts.net/TLSPage.html

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Old 08-21-2015, 08:49 AM   #7
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Why do you have to jump to start.
Doesn't your MH have a "AUX Start" button on the dash?
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Old 08-21-2015, 08:51 AM   #8
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Quote:
Originally Posted by rustyjax View Post
Hello, my name is Russ, and I'm a virgin cruiser!

ok, YES! I've now left the battery switches on, NOT ONCE but twice!
and YES, i've have to jump start this thing with my truck!
I've been lucky twice now!

My question, when at an RV park, and hard wired to the 50amp post,
should i leave BOTH of my battery switches ON, so the batteries can be
charged during the 50am hook up time? simply, do they recharge during this hook up?
Just because you left both switches on does not mean that both house and chassis batteries should be dead. If the starting battery is dead you should be able to use the switch that connects the house battery to the starting battery in order to start the engine. You should be able to leave all the switches on for days and not have any problems unless you have some things running that are drawing power from your batteries but I find it strange everything is dead. And yes, your coach is very new and it should charge everything while plugged in.
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Old 08-21-2015, 09:27 AM   #9
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Wow that is a shinny rig. How old is it? how old are the house and chassis batteries?
How long were you parked? how charged were the house batteries?
I bet it does have an aux start button that diverts the house batteries to the engine.
It may just be time to read the manual? I just installed a small solar/inverter system and my procedure is all different now.
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Old 08-21-2015, 08:11 PM   #10
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This is a genereic answer
Most modern RV's have a bi-directional isolator and thus both engine and shore power charge both chassis and house batteries.

Some older RVs (Even some still today) the isolator is one-way and thus only the Alternator (Engine) charges both.

IF yours is bi-direciotnal then you want BOTH House and Chassis connected when on shore power or when driving.

If yours is NOT bi-direcitonal then house only when connected both when driving..

How to tell?

On my coach there is a 12 volt accessory outlet in the dash. IT as it rusn out is a CHASSIS device. there are other 12 volt outlets but they are HOUSE devices.

I just plug in a Vector battery monitor. it tells me my bidirecitonal device is working. (over 13 volts)
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Old 08-24-2015, 08:57 AM   #11
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Looks like another poster that never returns. Makes one wonder if some of these ever come back to see what answers may be lurking to help out.
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Old 08-24-2015, 11:30 AM   #12
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Well, "530ktm" I am here! We left soon after getting this thing started Friday! And returned late yesterday! Sorry I didn't stay on this forum all weekend long!
Anyway,
You guys are LEARNING ME fast! And teaching the different avenues that can be taken! Yes, I am new to this, and like many of you, as time goes by, it will be second hand to me as well!
Never the less, while at the park this weekend, left both bat switches on, hoping they would be charged by 50amp shore hook up during the 2 day stay! Well, when we cranked up to leave the engine bat would not start the rig! From learning about the booster switch, was able to crank up to get home! And Yes, it cranked up this morning! THIS IS REALLY FREAKING ME OUT!
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Old 08-24-2015, 04:04 PM   #13
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rustyjax
Don't get frustrated by some of the posters, read all the posts and try and decipher which ones may be helpful and go from there.

I think the first thing you need to do is see if you do have an on board charger for the chassis battery. Many variations here so you may have to contact the manufacturer to see if they know.

Here is the one that is mounted in the electrical run bay
The LE-415 RV-Battery-Maintainer - Home

They can fail so even if you have one check to see if it is sending charge to the chassis battery. If it is trying to charge the battery then you need to see if the battery is good, check it with a hydrometer in each cell. If the battery is good then you may have something draining the power. Make sure everything that is connected to the chassis batteries are disconnected or off, this may include some work lights in some of the compartments.
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Old 08-24-2015, 04:15 PM   #14
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If your chassis battery goes dead in a weekend you have some other serious problem(s). How old are the batteries? Do they go dead when in storage or only when plugged in at the RV Parks?
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