On Mar 8, 3:51*pm, John H. wrote:
On Sat, 8 Mar 2008 12:57:09 -0800 (PST), Tim wrote:
On Mar 8, 2:32*pm, "D&LBusch" wrote:
I have a 26" Donzi with a 5.7 Merc. *The Previous owner had a dual battery
system. *One Deep Cycle one regular. *It's time to replace them. *Is a Deep
cycle battery necessary or can I go with two regular batteries?

Thanks in advance.
David

regular. I don't know why he used deep cycle to begin with, unless he
was possible using one on the cabin side so it could be drained flat
and recharged. Or for some reason was using a trolling motor.

regular ought to do you fine.

The Key West came with a deep cycle. The Proline came with two regulars. I
don't know why that is, but that's the way it is.

I don't, and won't, have a trolling motor on the Key West, so don't know
why it came the way it did. Maybe the manufacturers just consider it an
upgrade or sorts?
--
John

Could be John. I have two bat. on my 23' marquis, just regular ol'
$29.95 L-cheapo's. one is the cabin bat. one is engine. through my
own design battery isolator, and unless the engine is running it
seperates both batteries.

running the 500w stereo, the wife's TV and I 've got 8 headlights
I've rigged on a pole for night swimming. I've run the cabin bat.
close to flat dead, and it recharges well. I really don't see any
need for a deep-cycle battery.

Evidently different engineers have different ideas.
I have my own ideas, but they don't listen to me.

Maybe for the better.

"Tim" wrote in message
...

Could be John. I have two bat. on my 23' marquis, just regular ol'
$29.95 L-cheapo's. one is the cabin bat. one is engine. through my
own design battery isolator, and unless the engine is running it
seperates both batteries.

running the 500w stereo, the wife's TV and I 've got 8 headlights
I've rigged on a pole for night swimming. I've run the cabin bat.
close to flat dead, and it recharges well. I really don't see any
need for a deep-cycle battery.

Evidently different engineers have different ideas.
I have my own ideas, but they don't listen to me.

Maybe for the better.

---------------------------

I've been seeing more and more batteries that are so-called "combination",
meaning deep cycle/starting.

I always used one deep cycle as the "house" battery and a regular battery as
the "start" battery.
If sitting at the dock or at anchor for an extended period of time with the
engine off, listening to the radio and/or watching the fish finder, I'd
switch over to the deep cycle.
When ready to start up, I'd switch to the "regular" or "both".

But, it's been a while since I had a boat set up this way. Things may have
changed over the years.

Eisboch

That's how I have mine set up as well. Regular for starting, and deep cycle
for everything else. Seems to work for me.

--Mike

"Eisboch" wrote in message
...

"Tim" wrote in message
...

Could be John. I have two bat. on my 23' marquis, just regular ol'
$29.95 L-cheapo's. one is the cabin bat. one is engine. through my
own design battery isolator, and unless the engine is running it
seperates both batteries.

running the 500w stereo, the wife's TV and I 've got 8 headlights
I've rigged on a pole for night swimming. I've run the cabin bat.
close to flat dead, and it recharges well. I really don't see any
need for a deep-cycle battery.

Evidently different engineers have different ideas.
I have my own ideas, but they don't listen to me.

Maybe for the better.

---------------------------

I've been seeing more and more batteries that are so-called "combination",
meaning deep cycle/starting.

I always used one deep cycle as the "house" battery and a regular battery
as the "start" battery.
If sitting at the dock or at anchor for an extended period of time with
the engine off, listening to the radio and/or watching the fish finder,
I'd switch over to the deep cycle.
When ready to start up, I'd switch to the "regular" or "both".

But, it's been a while since I had a boat set up this way. Things may
have changed over the years.

Eisboch

On Mar 8, 9:39*pm, "Mike" wrote:
That's how I have mine set up as well. Regular for starting, and deep cycle
for everything else. Seems to work for me.

--Mike

"Eisboch" wrote in message

...





"Tim" wrote in message
...

Could be John. I have two bat. on my 23' marquis, just regular ol'
$29.95 L-cheapo's. one is the cabin bat. one is engine. *through my
own design battery isolator, and unless the engine is running it
seperates both batteries.

running the 500w stereo, the wife's TV and I 've *got 8 headlights
I've rigged on a pole *for night swimming. I've run the cabin bat.
close to flat dead, and it recharges well. *I really don't see any
need for a deep-cycle battery.

Evidently different engineers have different ideas.
I have my own ideas, but they don't listen to me.

Maybe for the better.

---------------------------

I've been seeing more and more batteries that are so-called "combination",
meaning deep cycle/starting.

I always used one deep cycle as the "house" battery and a regular battery
as the "start" battery.
If sitting at the dock or at anchor for an extended period of time with
the engine off, listening to the radio and/or watching the fish finder,
I'd switch over to the deep cycle.
When ready to start up, I'd switch to the "regular" *or "both".

But, it's been a while since I had a boat set up this way. *Things may
have changed over the years.

Eisboch- Hide quoted text -

- Show quoted text -

I think the OP was wondering if it was actually practical to pay the
extra for a deep cycle, or possibly not having deep cycle batteries
readily available.
from my experience, I think the OP would do fine with a couple car
jobs, myself.

I think the OP was wondering if it was actually practical to pay the
extra for a deep cycle, or possibly not having deep cycle batteries
readily available.
from my experience, I think the OP would do fine with a couple car
jobs, myself.

I don't necessarily disagree. However I do find myself on the water often
with engines off, and tunes on (decent sound system)... far more than I do
in my truck. For that reason, I think a deep cycle *may* be worth the extra
money. YMMV.

--Mike

"Tim" wrote in message
...
On Mar 8, 9:39 pm, "Mike" wrote:
That's how I have mine set up as well. Regular for starting, and deep
cycle
for everything else. Seems to work for me.

--Mike

"Eisboch" wrote in message

...





"Tim" wrote in message
...

Could be John. I have two bat. on my 23' marquis, just regular ol'
$29.95 L-cheapo's. one is the cabin bat. one is engine. through my
own design battery isolator, and unless the engine is running it
seperates both batteries.

running the 500w stereo, the wife's TV and I 've got 8 headlights
I've rigged on a pole for night swimming. I've run the cabin bat.
close to flat dead, and it recharges well. I really don't see any
need for a deep-cycle battery.

Evidently different engineers have different ideas.
I have my own ideas, but they don't listen to me.

Maybe for the better.

---------------------------

I've been seeing more and more batteries that are so-called
"combination",
meaning deep cycle/starting.

I always used one deep cycle as the "house" battery and a regular
battery
as the "start" battery.
If sitting at the dock or at anchor for an extended period of time with
the engine off, listening to the radio and/or watching the fish finder,
I'd switch over to the deep cycle.
When ready to start up, I'd switch to the "regular" or "both".

But, it's been a while since I had a boat set up this way. Things may
have changed over the years.

Eisboch- Hide quoted text -

- Show quoted text -

I think the OP was wondering if it was actually practical to pay the
extra for a deep cycle, or possibly not having deep cycle batteries
readily available.
from my experience, I think the OP would do fine with a couple car
jobs, myself.

"Mike" wrote in message
. net...
I think the OP was wondering if it was actually practical to pay the
extra for a deep cycle, or possibly not having deep cycle batteries
readily available.
from my experience, I think the OP would do fine with a couple car
jobs, myself.

I don't necessarily disagree. However I do find myself on the water often
with engines off, and tunes on (decent sound system)... far more than I do
in my truck. For that reason, I think a deep cycle *may* be worth the
extra money. YMMV.

--Mike

"Tim" wrote in message
...
On Mar 8, 9:39 pm, "Mike" wrote:
That's how I have mine set up as well. Regular for starting, and deep
cycle
for everything else. Seems to work for me.

--Mike

"Eisboch" wrote in message

...





"Tim" wrote in message
...

Could be John. I have two bat. on my 23' marquis, just regular ol'
$29.95 L-cheapo's. one is the cabin bat. one is engine. through my
own design battery isolator, and unless the engine is running it
seperates both batteries.

running the 500w stereo, the wife's TV and I 've got 8 headlights
I've rigged on a pole for night swimming. I've run the cabin bat.
close to flat dead, and it recharges well. I really don't see any
need for a deep-cycle battery.

Evidently different engineers have different ideas.
I have my own ideas, but they don't listen to me.

Maybe for the better.

---------------------------

I've been seeing more and more batteries that are so-called
"combination",
meaning deep cycle/starting.

I always used one deep cycle as the "house" battery and a regular
battery
as the "start" battery.
If sitting at the dock or at anchor for an extended period of time with
the engine off, listening to the radio and/or watching the fish finder,
I'd switch over to the deep cycle.
When ready to start up, I'd switch to the "regular" or "both".

But, it's been a while since I had a boat set up this way. Things may
have changed over the years.

Eisboch- Hide quoted text -

- Show quoted text -

I think the OP was wondering if it was actually practical to pay the
extra for a deep cycle, or possibly not having deep cycle batteries
readily available.
from my experience, I think the OP would do fine with a couple car
jobs, myself.

Battery selection is a personal thing. Understanding what the
characteristics of each wet cell battery type can help you decide what you
want. Generally it is best to stick with one type if they are both going to
be charged with a single output alternator or charger. They will both
receive a fuller charge that way. Automotive batteries are designed to give
up spurts of high energy and recover quickly. Deep cycle batteries can
deliver lesser amounts of energy over a longer time period. Combination
batteries are a compromise between the other types. When you know which type
you want select which brand you want by weighing your potential selections.
Heavier is usually better.
The OP who designed the automatic combiner has the right idea. KISS rules.
No need to worry about switch positions. Diode combiners sort of do the same
thing as automatic combiners, BUT you lose one volt due to diode losses.
That's huge when you are talking battery capacity.
Surette has a nice tutorial on the web, if you want to know the science.

On Sat, 8 Mar 2008 18:06:22 -0500, "Eisboch" wrote:


"Tim" wrote in message
...

Could be John. I have two bat. on my 23' marquis, just regular ol'
$29.95 L-cheapo's. one is the cabin bat. one is engine. through my
own design battery isolator, and unless the engine is running it
seperates both batteries.

running the 500w stereo, the wife's TV and I 've got 8 headlights
I've rigged on a pole for night swimming. I've run the cabin bat.
close to flat dead, and it recharges well. I really don't see any
need for a deep-cycle battery.

Evidently different engineers have different ideas.
I have my own ideas, but they don't listen to me.

Maybe for the better.

---------------------------

I've been seeing more and more batteries that are so-called "combination",
meaning deep cycle/starting.

I always used one deep cycle as the "house" battery and a regular battery as
the "start" battery.
If sitting at the dock or at anchor for an extended period of time with the
engine off, listening to the radio and/or watching the fish finder, I'd
switch over to the deep cycle.
When ready to start up, I'd switch to the "regular" or "both".

But, it's been a while since I had a boat set up this way. Things may have
changed over the years.

Eisboch


The *really* important thing is that my new charger handles the deep cycle
battery very nicely!
--
John