charging

[Ezrider_92356]

iv got an probably late 70's early 80's murcury mariner 25 hp that is pull start only no electric start is there any way to hook up a charging system to charge a trolling motor battery

 

[Laddies]

Re: charging

You can go to a Mercury dealer and they can supply a kit that contains the alternator windings and rectifier with the wiring and instructions to hook it up

 

[JohnsonDriver]

Re: charging

I just bought an 07 pullstart 15 HP motor, Model number 1-F15203FD

Would I be able to find the same kit?

Can you find them online, what product exactly am I looking for?

 

[JohnsonDriver]

Re: charging

http://www.mercurypartsexpress.com/...1074224065272&sku=856558A+2&store=Accessories

IS that the part I need?

How easy is it to hook up, basically I just need something to charge my battery for my running light and a floodlight, and maybe an interior, and maybe in the future a trolling motor.

 

[JohnsonDriver]

Re: charging

This is a screenshot I think I got the right part, at the bottom it says

(1)Charging rectifier already present on outboard and not required to be added.
(2)Lighting coils are already a part of the stator assembly and not required as a separate kit.

So I guess my motor already come with those, and I I need is the battery linkage?

 

[JohnsonDriver]

Re: charging

Can anyone help?????????????????????????????????????????

 

[Silvertip]

Re: charging

If you really think that charging system will keep a trolling motor battery charged up you had best take some meals and extra gas with you as you will need to run that engine wide open for hours to add any appreciable charge. Just because its a charging system doesn't mean you can attach a large load (trolling motor @10-30 amps, flood light @10 amps, lights @5 amps, and perhaps another 5 amps for locator, live well, etc.) If you run all that stuff for an hour you'll have pulled 25 to 55 amps of power from the battery. You can do the math, with even a 10A alternator it would take 2.5 to 5.5 hours to replace that juice (at wide open throttle). And I suspect that alternator probably is about 6A output max so you can nearly double those numbers.

 

[stillafloat]

Re: charging

charging systems on a motor are designed to maintain afully charged battery not to charge adead battery this in turn will damage the charge system.

 

[JohnsonDriver]

Re: charging

Thanks~!

The Trolling Motor will more or less be an emergency propulsion, Flood light will just be a quick on and off to scan the River at night, will the running lights and the locator be that much of a drain? Most of the time I run my lines in the morning and bait them just before dark, anyways thanks for the tips!

Also the flood light draws less then 5 amps.

Thanks a ton once again!

 

[Silvertip]

Re: charging

Since I have no idea what amount of power each of your devices draws, my numbers are general in nature. Nor did I know that the troller is not used regularly. That said, IF you use everything for an hour, you will not charge the battery in anything less than I've indicated. Only you can figure out what the "normal" current draw per hour is. Then divide that number by the maximum output of the charging system to get the amount of time you need to run WOT to charge the battery. And just so you know -- batteries don't like to be left half dead.

 

[JohnsonDriver]

Re: charging

Thanks a ton, I also picked up a battery tester just in case. After use I will test it and take it up to the house to charge if it is half dead! I use the boat alot I live on a River so about everyday! Thanks you have been a ton of help!