Batteys

[farmingdad]

Just bought a 2011 mountain air and the coach battery's and chassis battery's go dn owner night why, the light switchs stay lite with a dim blue light all times I don't no if there is away to cut them off

[ksg5000]

gutfelt wrote:

ksg5000 wrote:
Have the batteries tested - it's free at almost every tire/auto parts house. The led lights your looking at consume nominal battery power and won't have any meaningful impact overnight on your batteries. It't likely that you have an issue with your batteries +/or something related to their charging.

yes agreed that's what several of us have already posted here earlier

Yep - but when your on the road sometimes the responses you send are delayed so long they become less meaningful.

[gutfelt]

CA Traveler wrote:
Res refers use significant battery power but should be good overnight.

Chassis batteries should last a long time w/o charging. Mine are about 40% discharged in one month.

you chassis batterys should never discharge over even 5% in a month
assuming their shut off from any draws .

[gutfelt]

ksg5000 wrote:
Have the batteries tested - it's free at almost every tire/auto parts house. The led lights your looking at consume nominal battery power and won't have any meaningful impact overnight on your batteries. It't likely that you have an issue with your batteries +/or something related to their charging.

yes agreed that's what several of us have already posted here earlier

[ksg5000]

Have the batteries tested - it's free at almost every tire/auto parts house. The led lights your looking at consume nominal battery power and won't have any meaningful impact overnight on your batteries. It't likely that you have an issue with your batteries +/or something related to their charging.

[CA_Traveler]

Res refers use significant battery power but should be good overnight.

Chassis batteries should last a long time w/o charging. Mine are about 40% discharged in one month.

[CA_Traveler]

Have the batteries load tested. Light on switch is very low power and not the cause of your problem. You will have other drains that cannot be turned off.

Type/size/number of batteries in each bank? How are you recharging them - shore power/gen/engine/solar?

Spend $10+ for a digital voltmeter and start measuring and posting battery voltage and you'll learn a lot more.

[gutfelt]

farmingdad wrote:
Looks like the led light at switch would run dn an it is a all electric

Like we told you based on your post more than likely the batterys at 7 years old are shot
Led lite switches do not kill batterys overnite or over a month so that's not the issue at all

also like I already told you if somehow you run down the house and the starting batterys over nite unless you do a deep charge on both sets they most likely will run down again especially when getting weak

[DrewE]

Those LED light switches use very little power, I would guess maybe around 10 mA apiece. If you have twenty of them in the coach, that's something on the order of 2 Ah usage per night. Yes, it's something, but it's not the main cause of your battery draining--or, if it is, you really, really need a new battery.

[farmingdad]

Looks like the led light at switch would run dn an it is a all electric

[wa8yxm]

First. unless the coach is brand new the batteries may be at "end of life" one of the End of life indications is lack of capacity. A battery store can test.

IF the store can not test six colt Golf Car batteries on their tester wire two in series and test as a 4D 12 volt.. Same specs.

Second: Light switches often have a small lamp or LED to light them so you can find 'em in the dark, not that I've ever needed that even in a room I've never been before (I carry a flashlight 🙂 ). But they will always have power if

A: the batteries are "CONNECTED" (more on that in a paragraph) or B: you are PLUGGED INTO SHORE POWER.. Either way they have power.

Battery disconnect.. Sometimes this is a switch marked AUX on the dash, sometimes on a control panel inside the RV but by and far the most common place is the entrance.. Positioned so you can reach it STANDING on the ground outside the RV. .May say "Battery" May say "USE/STORE" may say AUX Turn it off (Store is off)

[Sam_Spade]

Mandalay Parr wrote:
Might replace all batteries.
Without known good ones you are just 'shooting in the dark'.

Might NOT too.
Spending money on a wild guess is not good advice.

Some simple testing should uncover the cause and what to do to fix it.

No single cause should discharge BOTH sets of batteries.

I could go along with this IF both batteries are the original OEM ones; going on 6 years old now.

[Mandalay_Parr]

Might replace all batteries.
Without known good ones you are just 'shooting in the dark'.

[gutfelt]

farmingdad wrote:
Just bought a 2011 mountain air and the coach battery's and chassis battery's go dn owner night why, the light switchs stay lite with a dim blue light all times I don't no if there is away to cut them off

Assume you said go down overnight;
1)once the batterys get low unless you give them a super charge and not simply a surface charge they wont hold there charge
2) the fact the two start batterys and the 4 house batterys both lose their charge is extremely unusual
3) there must be a parasite load somewhere but how it effects house and chassis is a but strange
4) I would start by making sure both sets of batterys are charged up properly then disconnect both sets and let set for 24 hours
then meter them and if their low replace
if there still charged (12.5-12.8 volts) and the house at each over 6.2 volts or so then you have major power draw somewhere
but as said weird its effecting both battery packs though
at 7 years of age it may be you simply need new batterys both house and chassis
an expensive DPMH like a mountain air I would assume it has both a house and a chassis battery disconnect system though

[ArchHoagland]

Until you find the problem this will cure it:

Battery disconnect switch.

How old are the batteries?

Is there water in the batteries?

Are the storage bin lights turned on?

Do you have an inverter?