Cranking Battery Advice

[snagged in outlet 3]

11 minutes ago, Dutch said:

Are you wanting flooded cell or agm batteries?

Flooded

[aarchdale@coresleep.com]

Ive ran a 93sv, livescope, 1198 bird, livewell continuous, and a radio most the time and never had a house battery go down on me.  if i ever have that issue ill just turn a couple things off.   I just use a Fish Hunter 27 from Ellis. Get a new one every couple years regardless how it tests

[vernon]

Thanks to everyone that's gone to the trouble to comment but I'm still lost which is familiar territory for me.

I'm trying to discern the benefit of buying two batteries and separating out the outboard and electronics as opposed to just buying one big and bad battery (such as the X2) even if it costs $300 - $400?

MCA's, CCA's, RCA's and L, M, N, O, P's be danged.

And if a guy were to separate them out then what kind of battery and with what part of the alphabet should the one for the electronics be?

🤦‍♂️🤯

[Quillback]

3 hours ago, fishinwrench said:

Fine, but this is the last time 😅 

 

Trying to get ONE MORE SEASON out of a tired battery is begging for outboard charging system failure (stator & voltage regulator).    Swap that cranking battery with a 900-1000 MCA every 3rd year and you'll never have that 2000.00 repair bill. 

The most important guage on your helm is the Voltmeter.  They should make them 4" and the tach 2"... instead of the other way around.     Watch your voltmeter when starting the motor, and glance at it often when running.   If it dips much below 10v while cranking, and isn't between 13-15 while running then you need to find out WHY immediately.     Over 15v will boil your battery dry. Under 12.5 will cause numerous circuits to overheat, which will drastically shorten the life of ignition/charging system components....they are all co-dependant on each other, and none of those components are cheap.

This info is also relative to your trolling motor circuit. A trolling motor ran using tired (or near dead) battery(s) will overheat every circuit in the system and bake the brushes.  A trolling motor that is never operated with a nearly discharged battery will probably last FOREVER.  But operate it with a 40% charged battery just once and you'll loose power and shorten the overall life of that unit for good.   

 

There.   Can we pin this somewhere so I don't have to keep repeating myself?   I'd rather spend my time reminding everyone about how ignorant it is to haul bass around in livewells. 😊

If you want to post this in the tips, tricks and boat help forum, I would be happy to pin it.

[Dutch]

1 hour ago, snagged in outlet 3 said:

Flooded

For flooded cell batteries the most important thing for me is reserve capacity (RC).  I always looked for 200 minutes or more for a 24 volt trolling motor.

[snagged in outlet 3]

Physics class was decades ago but I knew there was a relationship to all of the ratings.  I found this 
 

https://sciencing.com/how-8681870-convert-reserve-capacity-amp-hours.html

[vernon]

9 minutes ago, snagged in outlet 3 said:

Physics class was decades ago but I knew there was a relationship to all of the ratings.  I found this 
 

https://sciencing.com/how-8681870-convert-reserve-capacity-amp-hours.html

For God's sakes man!  Haven't I suffered enough?🤯

Coulombs now?

Seconds instead of minutes?

And MORE multipliers?

Physics, schmizics!

[snagged in outlet 3]

8 minutes ago, vernon said:

For God's sakes man!  Haven't I suffered enough?🤯

Coulombs now?

Seconds instead of minutes?

And MORE multipliers?

Physics, schmizics!

My daughter is finishing physics 2 and she agrees with you😂

[vernon]

4 minutes ago, snagged in outlet 3 said:

My daughter is finishing physics 2 and she agrees with you😂

Good girl!

There's a very good and directly related reason that my degree is in English!

Not that I was any good at that either but it was way easier to bluff my way through......

Best of luck to your daughter - hopefully there's not a physics "3"!

By the way - does she know anything about boat batteries?

[dtrs5kprs]

25 minutes ago, snagged in outlet 3 said:

My daughter is finishing physics 2 and she agrees with you😂

Good grief, ours is taking USAFA physics online.

Me: "nanananana can't hear you"

😬