Battery question

Just last night I got a new NOCO GB40 for my birthday. I have jumper cables in the boat already but this is SLICK looking.
Question, with a Pro Sport Mariner 20 Plus triple charger do I have to disconnect anything before I could:
A. jump start my own boat battery on the water or,
B. help someone jumpstart theirs ( this happened twice this summer and I was hesitant to offer as I was not sure how it worked – ended up towing both of them in instead)

OR:
Do I just attach the cables to the cranking battery and “press the button”?

Cars/trucks are one thing -looks pretty straightforward but this is new to me and want to make sure I get it right. Can’t find anything helpful online.

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   Battery-scaled.jpg
   

This is what my cranking battery looks like. Since they are all in sequence I am a little unsure if I will damage the others.

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I do not know the answer but your terminals need some anti corrosion lube. They look to be slowly starting to corrode.

You don’t need to disconnect anything. You are literally just attaching another battery in parallel momentarily.

Excellent- thanks!
Also, be picking up some anti-corrosion lube on the way home from the gun range today. Got a project I can do!

Jumping the cranking battery should be just fine but I’d turn the main power switch off going to any electronic devices or disconnecting power going to any electronic devices if they aren’t hooked up to the main power switch prior to jumping to anything that is powered by the battery you are jumping (except the motor of course) if you can.
It’s rare but I’ve seen electronic devices damaged more than once by not disconnecting them from the batteries that power them prior to jumping.
It only takes seconds to flip a switch or disconnect a power connection to safeguard your expensive displays. Why not do it?
A power spike can do nasty things to electronic devices such as displays.

I don’t disagree that turning switches off is a good idea but I’m curious what situation actually lead to electronic device being damaged by a jump. Was it a jump from one running motor to another?

If so, would the additional surge of current from the motor being jumped starting in addition to the current from jumping motor be the cause of additional current or voltage?

Just thinking out loud here but these jump packs are pretty well controlled in regards to current and voltage. Wouldn’t that alone prevent any possible damage to the system?

I’ve always hear to avoid jumping a “newer” car from another rig whenever possible due to possible damage to electronics. This doesn’t seem to be a concern when using a jump pack.

Would like to hear someone’s thoughts on why one vehicle jumping another is dangerous and if the same is true for a jump pack.

I would not see an issue with using the jump pack Matt. We start all sorts of stuff with one at work. Speaking of cars and trucks

The GB40 can only jump batteries. I bot the GB 70 that will jump but also power your electronics as well. It is bulkier but more functional.

Sylvanboat wrote:

The GB40 can only jump batteries. I bot the GB 70 that will jump but also power your electronics as well. It is bulkier but more functional.

A friend of mine also bought that one for the same purpose. He ended up calling NOCO to ask if he was ok to use like that and they said it is not really well suited to do that. It will definitely shorten it’s life if that’s how you plan to use it primarily.

Think starting battery vs deep cycle battery. Those units are more similar to a starting battery.

All right – went through all three batteries this afternoon, wire brushed the posts and connector leads down, applied Di Electric grease around all and am ready for Spring. Will double check tomorrow to make sure when I hit master power the Humminbirds and trolling motor shut down ( I know they do already but will double check) and if the need should arise I can simply turn off the master power switch and proceed to jump.

Thanks

Bearcat89 wrote:

I do not know the answer but your terminals need some anti corrosion lube. They look to be slowly starting to corrode.

Yeah, they look to be weak- need to be ripped and torn away.

Still, I think it’s safe to say that battery is here to stay.

biggill wrote:

<div class=”d4p-bbt-quote-title”>Sylvanboat wrote:</div>
The GB40 can only jump batteries. I bot the GB 70 that will jump but also power your electronics as well. It is bulkier but more functional.

A friend of mine also bought that one for the same purpose. He ended up calling NOCO to ask if he was ok to use like that and they said it is not really well suited to do that. It will definitely shorten it’s life if that’s how you plan to use it primarily.

Question: what is GB70 not suited to? I have used mine far more often to power my electronics. If a battery needs recurring jumps, it gets replaced.

Sylvanboat wrote:

Question: what is GB70 not suited to? I have used mine far more often to power my electronics. If a battery needs recurring jumps, it gets replaced.

Sounds like a great question for NOCO customer service. I’m just passing along second hand information.