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Conference wahoo::fishing-v2

Title:Fishing-V2: All About Angling
Notice:Time to go fishin'! dayegins
Moderator:WAHOO::LEVESQUE
Created:Fri Jul 19 1991
Last Modified:Wed Jun 04 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:548
Total number of notes:9621

348.0. "Battery Charging" by RANGER::MACINTYRE (Terminal Angler) Tue Feb 15 1994 11:39

    I was amazed that we didn't have a battery charging topic already,
    I'm sure we had one or two in V1.
    
    How often do you folks with BIG motors charge your cranking batteries?
    
    For years I've had 40hp or less and have virtually never had to charge 
    my cranking battery.  (I'd charge my 12v trolling motor battery after
    every use.) 
    
    Early last year I upgraded to boat with a 200hp outboard (Mercury
    BlackMax).  I installed on an board charger to take care of my 2 12v 
    trolling motor batteries (this has been fantastic, back in the driveway, 
    plug in the recepticle, done deal).
    
    I soon found myself having to charge my cranking battery much more
    often than I had anticipated.  Not too far into the year I found that
    my (new in spring) cranking battery eye was seldom going green, even
    after a full charge, so I started charging the battery after ever use. 
    
    Nonetheless, by the end of the year the eye was staying red.  I think
    this battery was bad, so I returned the battery last fall before
    storing the boat. (Charger is fine).
    
    Anyway, I'm curious as to how often others charge there cranking
    batteries for big motors.  I should note that this is on a bass boat,
    and it is unusual for the motor to run for more than 5-10mins (doesn't
    take too long to get across most of the lakes around here with 200hp
    8^) so the battery isn't getting charged much off the motor.
    
    -donmac
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348.1forgot to mention accessories...RANGER::MACINTYRETerminal AnglerTue Feb 15 1994 12:138
    One of my fellow bassers just responded to me in mail and I realized
    that I forgot to mention that I'm also running a fair amount of
    accessories off the cranking battery as well. 
    
    Livewells, 3 sonars, surface temp guage, motor guages, power trim, 
    bilge, and occassionally lights (navigatiion, held spot or fishing light).
    
    -donmac
348.2Never charge mineBLUEFN::GORDONTue Feb 15 1994 12:5612
I have a 150 hp Mariner and never had to charge my battery during the seasons.
However I do a lot of trolling, sometimes for hours.  I run color crt fishfinder
loran, radio, and bilge pumps off this battery.  Also the auto bilge pump
which runs a bit during a good rain.  I have never had a problem starting the 
engine with it.

I do turn off the fishfinder and loran when the engine is stopped.

I suspect that you got a bad battery.  I would check out the engine chagring
system though.

Gordon (only 2 more months)
348.3RANGER::MACINTYRETerminal AnglerTue Feb 15 1994 13:069
    One thing about bass boats is that during tournaments we're running our
    electronics all day, often 8 hours, of that time typically the outboard 
    is only on for an hour tops, often started for just a few mins.  So
    we do put alot of demand on our cranking batteries.  
    
    Good idea about having the charging system checked though, can't hurt.
    
    -donmac (getting boat out of storage in just SIX saturdays from now...)
    
348.4XCUSME::TOMASI hate stiff waterTue Feb 15 1994 13:5317
Don,

I also agree that your battery was probably questionable.  The electronics 
on your boat, even with all of them on at the same time, will not draw that 
much.  The livewell pump should draw no more than a couple of amps when it 
kicks on.  I also agree that 5-10 mins. of running time is insufficient to 
recharge the battery.

Out of curiosity, did you periodically check the acid level in the cranking 
battery during the season?  If it is allowed to fall below the top of the 
lead plates, even for a short period of time, the battery will not last 
long.  Also, if you do add water (distilled water is best but I just use 
tap water), be sure to put the charger on it for a while.  Adding even a 
little water will greatly reduce the specific gravity in the cell.

-HSJ- 
348.5nopeRANGER::MACINTYRETerminal AnglerTue Feb 15 1994 14:036
    re: did i check the acid level
    
    no, it was a sealed maintenance free, stowaway, a large dual purpose
    (crank/deep)
    
    -don mac
348.6On your boat, I'd think never ????JURAN::MATTSONThu Feb 17 1994 15:5610
    Don,
    	Look up the specs for your engine.  I believe an engine that size
    should have a pretty good size alternator on it (40amps or better).  My
    70 hp only has a 15 amp alternator on it.  I hook up the battery
    charger probably 3-4 time a season (except when the kids get into the
    boat and turn a switch on that I don't know about).  I wouldn't think
    you'd have to worry about recharging your cranking battery much of your 
    alternator puts out the kinda current I believe a 200 hp should.
    
    							Gary
348.7never say neverRANGER::MACINTYRETerminal AnglerThu Feb 17 1994 17:2520
    True, the alternator puts out alot of juice, but it also takes alot of
    juice to crank 6 cylinders.  And typically the alternator is not 
    going very long at all, typically just a few minutes.  Not much of 
    a chance to make up for the big burst of energy required to crank 
    the motor.
    
    Plus the livewells pumping all day long (only a problem for those of us 
    who actually catch fish, Legend still thinks his boat came with a wet 
    bar... 8^).
    
    I will have the alternator checked though, to verify that it's working
    properly.
    
    re: kids flipping switch
    
    I've experienced that myself.  What I don't have is a master accessory
    on/off switch that can kill power everywhere except the engine.  I'm
    probably going to install one.
    
    -donmac
348.8SPNRBT::kddKeith DilsworthFri Feb 18 1994 13:168
Don,

I have not placed a charger on the cranking battery of my new ranger.  The
alternator of the outboard should recharge it in 10 minutes.  Takes 5-10 seconds
to start at 40amps or so.  Electronics draw less than an amps.  Tilt/trim
maybe 10 amps.  Alternator puts out about 30 amps.

keith
348.9MRBASS::PUISHYSBob PuishysWed Feb 23 1994 08:4915
Hay Don,

	A 150 gt has a 36 amp alternator.  I have a 1986 acid water
crankin battery.  I run all day two wells and or lights and have never had
a problem starting the big boy.   I had a crack in the battery so I chnaged
it this past year.

	Before a big tournament I would put the charger on the crankin
batery when I got up in the morning, by the time I was out the door the
charger would be in trickle mode.

	So if you have a 1/2 way decent battery don't worry too much about
it.

Bassin Bob
348.10RANGER::MACINTYRETerminal AnglerWed Feb 23 1994 09:1414
    Well, right now I don't have any cranking battery, I returned it 
    last fall.  I'll get a replacement in a few weeks.
    
    Typically I'm out of the driveway within a 30-40 mins after the alarm
    goes off on tournament day.  If I were to use your method I'd get maybe
    20mins of 10amps, once a month, not a whole helluvalot, but maybe
    enough.
    
    Assuming my alternator is working correctly, I must have had a bad
    battery.  I'll be pulling the boat out of storage in a few weeks. I'll
    probably wind up bringing it straight to Owens (it's stored right near
    there), where I'll have them check it out.
    
    -donmac
348.11MRBASS::PUISHYSBob PuishysThu Feb 24 1994 13:537
Hay Don,

	Thats about all mine gets 10-20 mins.  
I have a 20amp charger.   Some times only about
5 minutes and it is already trickle charging.

bob 
348.12battery bargains?RANGER::MACINTYRETerminal AnglerMon Mar 21 1994 12:156
    Anyone seen any good deals on large cranking/deep cycle batteries 
    lately?
    
    Need to pick one up this week, picking up the boat this weekend...
    
    -don mac
348.13BJ'S WholesaleMKOTS1::BOURGAULTTue Mar 22 1994 11:586
    Mac, I can get one for you at BJ's for $53 or $54 bucks It's a Delco 
    Voyager.
    
     Regards
    
     Don B,
348.14kmartRANGER::MACINTYRETerminal AnglerSat Mar 26 1994 19:314
    thanks for the offer don b, but i got the big (m27f?) delco at kmart 
    on fri night, had the boat on the merrimack on sat, cranked like a
    charm... probably could have saved a few bucks at bjs... see ya in a
    couple weeks...
348.15BatteryMKOTS1::BOURGAULTTue Mar 29 1994 13:477
    That is the big delco for $53 at BJ's.
    
     See you in a few!!!!
    
     Regards 
     
     Don B,