charging deep cycle trolling battery with truck

Guest
Hello.

I have a 12 volt a Deep Cycle Boat trolling motor battery I'd like to
keep charged via my chevy s10 v6 blazer. I currently have two 4 guage
wires running about 6 feet to the back of the car connecting the
primary battery to an 800watt inverter. With the engine running I can
I drill, cut wood, make popcorn and and fry fish on an electric
skillet - it's awesome.

I'd also like to charge that trolling battery as I drive around. I
know most will tell me to get a fancy isolator and connect it to all
sorts of places in the truck. WHY? Any way I can safely hook it up to
that 4 gauge wire with diodes and pull from both batteries and the
alternator when using the inverter, but never ever pull from the
trolling battery or the inverter for anything relating to the car. I
figure any small amount of current to the second battery will keep it
topped off, but any risk of loosing normal draw for starting or normal
operation of the viechle. Any chance the guys at best buy will be
able to put this simple solution for me? they originally install the
inverted and did a great job for $50. What are the risks?

Many thanks for *any* help or information.
 
jason@cyberpine.com wrote:

Hello.

I have a 12 volt a Deep Cycle Boat trolling motor battery I'd like to
keep charged via my chevy s10 v6 blazer. I currently have two 4 guage
wires running about 6 feet to the back of the car connecting the
primary battery to an 800watt inverter. With the engine running I can
I drill, cut wood, make popcorn and and fry fish on an electric
skillet - it's awesome.

I'd also like to charge that trolling battery as I drive around. I
know most will tell me to get a fancy isolator and connect it to all
sorts of places in the truck. WHY? Any way I can safely hook it up to
that 4 gauge wire with diodes and pull from both batteries and the
alternator when using the inverter, but never ever pull from the
trolling battery or the inverter for anything relating to the car. I
figure any small amount of current to the second battery will keep it
topped off, but any risk of loosing normal draw for starting or normal
operation of the vehicle. Any chance the guys at best buy will be
able to put this simple solution for me? they originally install the
inverted and did a great job for $50. What are the risks?

Many thanks for *any* help or information.
Click to expand...
My first inclination is just to hook it and don't worry about it. The only
time the should be a large draw on the deep cycle battery is when you are
starting the vehicle. I woul guess the starter will draw more current from
the main battery just because of the shorter leads. This is not a question
for best buy unless you enjoy the look of complete bafflement on peoples
faces. The place to ask is a RV supply as they have ways to Isolate the
starting battery from the other batteries when the motorhome isn't running

Also fasten the extra battery down well. It would really be bad to have this
battery setting on your head leaking acid down your neck in the even of an
acident
 
Jason:
You don't need a "fancy" isolator...... any discount car parts place will
have made for the purpose "battery isolators" for less money that it would
cost you to do it yourself with a homebrew haywire arrangement. At the very
least you should check the price before you assume it will be cost
prohibitive. Also, as Doug suggested in his reply to your posting, check
with RV supply places too.
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
 
Many moons ago I had an old Chevy van that I used to go camping in. I wanted
to be able to run the stereo and interior lights without worrying about
being able to start in the morning. I hooked up a second battery, deep cycle
type, in parallel and put a "constant duty solenoid" in between the two on
one side. It was energized only when the key was in the "run" position. My
accessories were all hooked up to the second battery. The end result was to
be able to run the second battery down and not even touch the starter
battery, since the solenoid would break the connection when the engine
wasn't running. With engine running, the second battery would again be
connected and would charge back up. The solenoid looks like the Ford type
but is designed to stay closed for long periods of time. Try it, you'll like
it. Just wire the inverter to the second battery only.

<jason@cyberpine.com> wrote in message
news:ef0a04d7.0311201850.66e0f480@posting.google.com...
Hello.

I have a 12 volt a Deep Cycle Boat trolling motor battery I'd like to
keep charged via my chevy s10 v6 blazer. I currently have two 4 guage
wires running about 6 feet to the back of the car connecting the
primary battery to an 800watt inverter. With the engine running I can
I drill, cut wood, make popcorn and and fry fish on an electric
skillet - it's awesome.

I'd also like to charge that trolling battery as I drive around. I
know most will tell me to get a fancy isolator and connect it to all
sorts of places in the truck. WHY? Any way I can safely hook it up to
that 4 gauge wire with diodes and pull from both batteries and the
alternator when using the inverter, but never ever pull from the
trolling battery or the inverter for anything relating to the car. I
figure any small amount of current to the second battery will keep it
topped off, but any risk of loosing normal draw for starting or normal
operation of the viechle. Any chance the guys at best buy will be
able to put this simple solution for me? they originally install the
inverted and did a great job for $50. What are the risks?

Many thanks for *any* help or information.
Click to expand...
 
"Doug" <tbear@dreamscape.com> wrote in message
news:vrsb687rqi7fe9@corp.supernews.com...
jason@cyberpine.com wrote:

Hello.

I have a 12 volt a Deep Cycle Boat trolling motor battery I'd like to
keep charged via my chevy s10 v6 blazer. I currently have two 4 guage
wires running about 6 feet to the back of the car connecting the
primary battery to an 800watt inverter. With the engine running I can
I drill, cut wood, make popcorn and and fry fish on an electric
skillet - it's awesome.

I'd also like to charge that trolling battery as I drive around. I
know most will tell me to get a fancy isolator and connect it to all
sorts of places in the truck. WHY? Any way I can safely hook it up to
that 4 gauge wire with diodes and pull from both batteries and the
alternator when using the inverter, but never ever pull from the
trolling battery or the inverter for anything relating to the car. I
figure any small amount of current to the second battery will keep it
topped off, but any risk of loosing normal draw for starting or normal
operation of the vehicle. Any chance the guys at best buy will be
able to put this simple solution for me? they originally install the
inverted and did a great job for $50. What are the risks?

Many thanks for *any* help or information.
Click to expand...
Just get a battery isolator, they're only about $20.
 
After punching "battery isolator" into a search engine and checking out a
few web pages, I see that the way I rigged the old Chevy van wasn't such a
good Idea. Here's a link to one of them.
http://www.smithae.com/surepower.html

"Forrest" <REMOVETHISrunforrest1@hotmail.com> wrote in message
news:cKadnRyOBufSGCOiRVn-ig@comcast.com...
Many moons ago I had an old Chevy van that I used to go camping in. I
wanted
to be able to run the stereo and interior lights without worrying about
being able to start in the morning. I hooked up a second battery, deep
cycle
type, in parallel and put a "constant duty solenoid" in between the two on
one side. It was energized only when the key was in the "run" position. My
accessories were all hooked up to the second battery. The end result was
to
be able to run the second battery down and not even touch the starter
battery, since the solenoid would break the connection when the engine
wasn't running. With engine running, the second battery would again be
connected and would charge back up. The solenoid looks like the Ford type
but is designed to stay closed for long periods of time. Try it, you'll
like
it. Just wire the inverter to the second battery only.

jason@cyberpine.com> wrote in message
news:ef0a04d7.0311201850.66e0f480@posting.google.com...
Hello.

I have a 12 volt a Deep Cycle Boat trolling motor battery I'd like to
keep charged via my chevy s10 v6 blazer. I currently have two 4 guage
wires running about 6 feet to the back of the car connecting the
primary battery to an 800watt inverter. With the engine running I can
I drill, cut wood, make popcorn and and fry fish on an electric
skillet - it's awesome.

I'd also like to charge that trolling battery as I drive around. I
know most will tell me to get a fancy isolator and connect it to all
sorts of places in the truck. WHY? Any way I can safely hook it up to
that 4 gauge wire with diodes and pull from both batteries and the
alternator when using the inverter, but never ever pull from the
trolling battery or the inverter for anything relating to the car. I
figure any small amount of current to the second battery will keep it
topped off, but any risk of loosing normal draw for starting or normal
operation of the viechle. Any chance the guys at best buy will be
able to put this simple solution for me? they originally install the
inverted and did a great job for $50. What are the risks?

Many thanks for *any* help or information.
Click to expand...
 
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