Jump Starting the Boat / Trickle Charge

[ksw144]

So I've read about how we can't jump the boat with a running vehicle, or jump mode on a charger. But how about my battery box. I don't see how it would be any different that just hooking up another, or a different battery. But due to the sensitivity of these things I just want to make sure.

I'll be on a long trip out of the state with the boat, and will be using my stereo a lot. I figured I'd throw my jumper box in my buddies day cruiser, and can jump my battery if I manage to kill it somehow. Do I run any risk of having issues?

Also, is there any issue with running a trickle charger with the MPEM still hooked up? I disconnect the battery lines when I run the full size charger, but a trickle charger hooked up would be nice.

Thanks!

 

[RFoster130]

I keep a jump pack with me, but have never used it. I dont see a problem with it. You arent getting the extra amperage you get with another running charging sytem.

I always make sure there is no way to damage the boats electrical system when charging. Even with a trickle charger. The MPEM is waaaay to expensive for me to chance it. I have a master battery disconnect. With it off, it is fine to charge the battery in the boat. You can add the swicth for 30 bucks if you dont have one.

 

[phough5757]

Trickle charge.

A trickle at 1 or 2 amps wont hurt..nor will a jumper box.

 

[Dr Honda]

Jump box is fine, and so is a trickle charger. BUT, personally, any time I hook up a charger, I disconnect the the cables. The price of an MPEM is just to high to take a chance.

 

[ksw144]

Awesome, thanks for the clarifications guys. I'll likely install a kill switch after I return from Shasta, that sounds like the best bet.

 

[Guruofsleep@aol.com]

riddle me this

It seems like all boater and PWC owners have battery issues from time to time.
Charging and/or jumping sometimes just has to be done.
So why would Seadoo build an MPEM that is so fragile. I guess I have been lucky so far since I have not had any problems, but you all have me concerned because from these post I have been doing everything wrong.
I will be installing a shutoff switch or a bypass very soon.
I am open to any suggestions.

 

[ksw144]

It seems like all boater and PWC owners have battery issues from time to time.
Charging and/or jumping sometimes just has to be done.
So why would Seadoo build an MPEM that is so fragile. I guess I have been lucky so far since I have not had any problems, but you all have me concerned because from these post I have been doing everything wrong.
I will be installing a shutoff switch or a bypass very soon.
I am open to any suggestions.

Guru, I have to admit, I've very surprised to hear of this problem. It would seem that this would be an obvious problem to avoid as a boat manufacturer, sigh...

KW