Marien Starting Battery =/= Deep cell battery

[swimmer_spe]

I was given a Marine Starting battery. I keep killing it. I then learn that is because it is not a deep cell battery.

At least I now know.

[pianotuna]

azrving,

That depends on the design. My fridge on propane runs through approximately 35 amp-hours per day. Duty cycle is 2:3.

[azrving]

swimmer_spe wrote:

azrving wrote:
Do you have a propane refrigerator?

yup

If I tell you that the fridge pulls X amps the nitpickers will be on it like flies on stink arguing over a milliamp. Your propane fridge circuit board and gas valve use 12 v all the time. Amp draw goes up a little when the the gas valve opens.

[pianotuna]

You get a Francis Freas hydrometer.

http://freasglass.com/

or

https://www.amazon.com/OTC-4619-Professional-Battery-Hydrometer/dp/B0050SFVHO/ref=sr_1_5?s=automotiv...

[swimmer_spe]

MEXICOWANDERER wrote:
$1.99 three light indicator

Like a weatherman licking his finger, holding it up to the wind and declaring "cold snap coming next week".

Or a backyard chemist suddenly yelling "RUN !"

Or using an hourglass instead of a speedometer when a cop is on your tail

Wanna see an RV manufacturer scream? Tell him something is going up s dollar in price.

Wall monitors for voltage may cost five dollars. They are not worth 99 cents

Ok, so what do I get? leme guess something expensive that won't really tell me much more....

[swimmer_spe]

azrving wrote:
Do you have a propane refrigerator?

yup

[swimmer_spe]

bikendan wrote:

swimmer_spe wrote:

bikendan wrote:

swimmer_spe wrote:

azrving wrote:

swimmer_spe wrote:

azrving wrote:
What voltages are you seeing as you use it? Have you checked the gravity?

I had it tested and it is good. But I kept killing it. Tells it is still a good battery, but not up for what I need it for.

Maybe you need more than one. Even a true deep cycle may not help you if you try to pull too many amp hours. I run six GC2 and use all they have. Do an energy audit.

Hoow do I do one? Only thing besides the lights is the furnace.

Suggest you Google "the 12 Volt Side of Life". Your battery is used for more than just lights.

Besides the CO/smoke detector there is nothing else, unless you count the odd time I turn the pump on.


I have no other powered things. I don't have things that have residual power consumption.

The radio clock uses power and some Dometic fridges have a Climate Control feature that drains battery power when not plugged into shore power.

None of those on my trailer.

[MEXICOWANDERER]

$1.99 three light indicator

Like a weatherman licking his finger, holding it up to the wind and declaring "cold snap coming next week".

Or a backyard chemist suddenly yelling "RUN !"

Or using an hourglass instead of a speedometer when a cop is on your tail

Wanna see an RV manufacturer scream? Tell him something is going up s dollar in price.

Wall monitors for voltage may cost five dollars. They are not worth 99 cents

[azrving]

Do you have a propane refrigerator?

[bikendan]

swimmer_spe wrote:

bikendan wrote:

swimmer_spe wrote:

azrving wrote:

swimmer_spe wrote:

azrving wrote:
What voltages are you seeing as you use it? Have you checked the gravity?

I had it tested and it is good. But I kept killing it. Tells it is still a good battery, but not up for what I need it for.

Maybe you need more than one. Even a true deep cycle may not help you if you try to pull too many amp hours. I run six GC2 and use all they have. Do an energy audit.

Hoow do I do one? Only thing besides the lights is the furnace.

Suggest you Google "the 12 Volt Side of Life". Your battery is used for more than just lights.

Besides the CO/smoke detector there is nothing else, unless you count the odd time I turn the pump on.


I have no other powered things. I don't have things that have residual power consumption.

The radio clock uses power and some Dometic fridges have a Climate Control feature that drains battery power when not plugged into shore power.

[swimmer_spe]

bikendan wrote:

swimmer_spe wrote:

azrving wrote:

swimmer_spe wrote:

azrving wrote:
What voltages are you seeing as you use it? Have you checked the gravity?

I had it tested and it is good. But I kept killing it. Tells it is still a good battery, but not up for what I need it for.

Maybe you need more than one. Even a true deep cycle may not help you if you try to pull too many amp hours. I run six GC2 and use all they have. Do an energy audit.

Hoow do I do one? Only thing besides the lights is the furnace.

Suggest you Google "the 12 Volt Side of Life". Your battery is used for more than just lights.

Besides the CO/smoke detector there is nothing else, unless you count the odd time I turn the pump on.


I have no other powered things. I don't have things that have residual power consumption.

[bikendan]

swimmer_spe wrote:

azrving wrote:

swimmer_spe wrote:

azrving wrote:
What voltages are you seeing as you use it? Have you checked the gravity?

I had it tested and it is good. But I kept killing it. Tells it is still a good battery, but not up for what I need it for.

Maybe you need more than one. Even a true deep cycle may not help you if you try to pull too many amp hours. I run six GC2 and use all they have. Do an energy audit.

Hoow do I do one? Only thing besides the lights is the furnace.

Suggest you Google "the 12 Volt Side of Life". Your battery is used for more than just lights.

[pianotuna]

Trusting the 3 light indicator may be unwise. For flooded jars the best way to check state of charge is to measure specific gravity by using a hydrometer.

What converter is in the RV?

I suggest changing to LED lights.

swimmer_spe wrote:
My trailer has a 3 light indicator. When it gets to red, I stop using power and recharge.

[swimmer_spe]

MEXICOWANDERER wrote:
Forklift batteries can be drained and destroyed

The succinct problem is like trying to manage a checking account without having the ability to read and write. I can't be overdrawn I have checks left.

The OP needs meters and the knowledge that enables him to use them effectively. A battery voltage cut out switch would work as a poor substitute.

My trailer has a 3 light indicator. When it gets to red, I stop using power and recharge.

[MEXICOWANDERER]

Forklift batteries can be drained and destroyed

The succinct problem is like trying to manage a checking account without having the ability to read and write. I can't be overdrawn I have checks left.

The OP needs meters and the knowledge that enables him to use them effectively. A battery voltage cut out switch would work as a poor substitute.