just wondering if there is a way to have the outboard charge both of my batterys

[sparkyclass1]

is there some thing i can do or buy or do i have to keep lugging the battery to the shed

 

[Big flop]

Re: just wondering if there is a way to have the outboard charge both of my batterys

What motor are you running?

 

[boobie]

Re: just wondering if there is a way to have the outboard charge both of my batterys

Model # ???

 

[sparkyclass1]

Re: just wondering if there is a way to have the outboard charge both of my batterys

What motor are you running?

1985 rude 70hp e70tlco

 

[cr2k]

Re: just wondering if there is a way to have the outboard charge both of my batterys

You might look for a battery isolator at pep boys or some where hook 1 battery to each side charge wire to input. Don't expect tons of charge.

 

[stylesabu]

Re: just wondering if there is a way to have the outboard charge both of my batterys

my 83 75hp suzuki,only puts out 9 amps at 3500rpm and up, what are you usung second battery for?

 

[dew2]

Re: just wondering if there is a way to have the outboard charge both of my batterys

my 83 75hp suzuki,only puts out 9 amps at 3500rpm and up, what are you usung second battery for?

Lots of people ask this.Like your suzuki 9 A @3500RPms. To charge a battery one would have to run at 3500 rpms or higher for hours to charge a battery that was low.I always say the outboard charge system is a battery maintainer.

 

[emoney]

Re: just wondering if there is a way to have the outboard charge both of my batterys

You could just run a long extension cord to the boat

 

[Chris1956]

Re: just wondering if there is a way to have the outboard charge both of my batterys

Sparky, Lug the charger to the boat instead.

You can install a battery switch and set it to both when you are running the motor. it will charge whatever battery (or both) is selected.

 

[archcycle]

Re: just wondering if there is a way to have the outboard charge both of my batterys

http://www.bepmarine.com/home-mainmenu-8/productcategory-44/voltage-sensitive-battery-relays

You need one of these. I bought one brand new on eBay for $50. What it does is only allow current to flow one way, and then only after it reaches a high enough current that it is certain a charge is occurring. After the current drops back down (for example you disconnect the charger from the main battery or you slow the motor down and it stops making enough current) it cuts off the charge flow.

At 13.8 volts you get this:
Current --> Main battery --> VSR --> Secondary battery
Drops below 12.4 volts, even for a moment, and it stops allowing current past the VSR

It will NOT, however, allow you to use current from the secondary battery to help out the main battery for things like starting. For that you'd need to either also have a battery switch, or keep long enough jumper cables onboard, or be willing to unhook the secondary and move it if you somehow killed your starter battery. I didn't bother with the switch because I already have jumper cables onboard.

VERY simple to install and makes your life a lot simpler and your boat more reliable.

A switch is not a good solution because if you forget it is on then the two batteries will feed back and forth and drain them both to zero and kill them.

 

[sparkyclass1]

Re: just wondering if there is a way to have the outboard charge both of my batterys

my 83 75hp suzuki,only puts out 9 amps at 3500rpm and up, what are you usung second battery for?

it would be my trolling batt

 

[sparkyclass1]

Re: just wondering if there is a way to have the outboard charge both of my batterys

thanks i will look into that sounds like what i was looking for

 

[F_R]

Re: just wondering if there is a way to have the outboard charge both of my batterys

it would be my trolling batt

Save your money. Ain't no way. The 9 amp output is no where near enough to maintain both the starting battery AND trolling battery, if you are using the trolling motor. That's why you have a separate (deep cycle) trolling motor battery---so you can kill it and take it back home for charging. On the other hand, if you don't run the trolling motor, you don't need to recharge the battery.

 

[bob johnson]

Re: just wondering if there is a way to have the outboard charge both of my batterys

depending on how far you park your boat from an elctrical source, your best bet might be to just install an onboard battery charger..

i used to have to climb into the boat, open the hatch, reach in and unbolt the terminals, set them, aside and pull the battery out set it on the gunnel and climb down , and carry it to the garage.

now i just plug in an extension cord into an outlet i can reach while standing NEXT to the boat!!!

charges BOTH my batteries over night.

good luck

bob

 

[Silvertip]

Re: just wondering if there is a way to have the outboard charge both of my batterys

http://www.bepmarine.com/home-mainmenu-8/productcategory-44/voltage-sensitive-battery-relays

A switch is not a good solution because if you forget it is on then the two batteries will feed back and forth and drain them both to zero and kill them.

Utter nonsense! Two, three or even ten batteries will not "feed back and forth" and bring them to zero. When stored they will equalize -- they will not drain. Under charge they will all charge at different rates until they equalize after which the "system" voltage will rise to normal levels. Over the road trucks for example have six batteries and parallel and they live very nicely in that configuration. In fact, a dual battery switch is the least expensive, most versatile device for a boat. The only time it is not recommended is if the system has two batteries that have two very different charge profiles. With the very low alternator output of this engine, neither a switch, VSR, ACR, and the least desireable "isolator" is needed. The engine has enough work to do to keep the starting battery charged.