Battery Tender/trickle charger

[b15philly]

Might be a stupid question but can I keep a battery tender/ trickle charger on my battery while it is connected in the ski?

 

[aklim]

Are you trying to hard wire one in or what? Why are you doing this?

 

[b15philly]

No just to charge the battery while it's not in use while it's on the trailer

 

[aklim]

If it was for a long time, I would disconnect the battery and charge it. If it is a short time, I wouldn't bother since the battery should hold a charge for at least a couple of weeks unless it is bad.

 

[timmyboy76]

got them installed on my boats...http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=99857

 

[aklim]

I thought it was said that when you charge a battery in the boat, remove battery terminals?

 

[scarfface]

Hey Timmyboy. Thats pretty sweet battery charger. I'm adding a second Battery this weekend with an isolation switch. Does that charger work without having to take the battery out fo your boat and does it. Im adding a stereo aswell so I doent want to be without a charged battery.

 

[timmyboy76]

Hey Timmyboy. Thats pretty sweet battery charger. I'm adding a second Battery this weekend with an isolation switch. Does that charger work without having to take the battery out fo your boat and does it. Im adding a stereo aswell so I doent want to be without a charged battery.

you got it brother. Make sure though, you have the battery switch turned OFF...:rofl:

look close, middle, top of pic, you'll see the charger, not same as link (have that style in other boat), but same gesture...

 

[aklim]

https://www.sbtontheweb.com/forum/showpost.php?p=151787&postcount=5

The electronics on the CDI and MPEM's on the ski's are a lot more sensitive to a current spike compared to a car. If you insist o charging the battery while it's in the ski, at least take off the power lead, that will keep any current from going into the electrical box.

Battery charger and even the tenders do not put out a constant 2v, it cycles the battery, and varies the voltage while charging (that's how it knows the battery is fully charged). Typically, even this voltage curve will not hurt the electronics, but it has happened to people who have had a tender go south while charging...

In my opinion, a screwdriver and 10 seconds of your time is worth WAY more than trying to daignose and replace the expensive (if not impossible to find) electronics.

That was the post I was trying to find.

 

[timmyboy76]

thats if you dont have an on/off switch in between battery and mpem.

 

[scarfface]

Will that charger do both batteries at the same time or do I have to get 1 for each battery?

 

[timmyboy76]

Would think so, but, splicing the red wire and making 2 leads, think that wire, get real hot...wouldnt recommend it.