Cranking Battery Problem
I do not know what the battery size is, but I am more concerned with
testing the charge coming from the motor. The motor is a 1999 Johnson
130. If outboard motors do not do a great job of recharging a battery,
then that may have been the problem. I just bought a two bank on-board
charger for the boat. Maybe I should have purchased a three bank
charger. Nonetheless, I will check the charge coming from motor as soon as I
can. I assume a running engine should put out approximately 14
volts(?). |
drwhittaker
May 9
2005
|
| Bill and Rich are both dead on. Also, it is possible as has been suggested
that the battery may not have had a full charge when installed. Charge it fully and have it load tested. My sounders have a setting to display supply voltage. I always turn that
data on. Then I have a pretty good indication of what is going on with my
cranking battery. Bob La Londe
www.YumaBassMan.com |
Bob
May 9
|
| around 14 volts is pretty typical regulation voltage for a fully
charged battery. If the battery is very low or there is a high
electrical load on the system the charging voltage will not be at this
level due to the battery consuming all of the charging system output.
This is especially noticable at idle or low speed. Start out at idle
and check that the voltage is rising as the engine revs up. If the
charging system is dead, the voltage may actually fall as the engine
speed rises. Shane |
irbfishin
May 9
|
| The problem with depending on the outboard alternator to charge the starting
battery is that the outboard has to be running in order for that to happen.
Think about it, how much time does your outboard run in relation to time
spent fishing? If you're like most people, you zoom to the spot, then down comes the
trolling motor and you fish. The outboard actually runs very little in the
course of a normal day of fishing. Now, if you're adding the draw of
accessories, and still not running the outboard, the drain becomes more than
the outboard alternator can supply. That's why I have all of my accessories running off the trolling motor
batteries. |
Steve
May 9
|
| Some older motors only put out a few amps of charge and there was not a
regulator. Just not enough generator power to cook the battery.
Bill |
Bill
May 9
|
| If you run a 2 bank charger and it's only hitting your trolling motor
batteries, that's probably it. I have a 24 volt troller and I use a three
bank charger and I run all my accessories off the cranking battery and it
lasts all day no problem (1990 Ranger with 1989 Yamaha 115). Try another
charger on your cranking battery and go out again. This time bring jumper
cables. Rich P |
Rich
May 9
|
| My bet is that motor has a 6 amp alternator. You'd have to run it for a
couple hours to put back what you use every time you start it. |
RichZ
May 9
|
| Another option would be to sell the 2bank on Ebay and put the money
towards a 3bank. probably would net out close to the same money as
buying an aditional single bank. Just a thought Shane |
irbfishin
May 10
|
