How to jump dead batteries


kai330

kai330

Member
So, I am wondering.....

If I get to the boat and both batteries are dead, how do I lift the hatch to jump start the boat?

I see a pair of heavy-duty terminals under the dashboard. Are these suitable places to attach a portable battery jumper?
 
You can manually lift the hatch and then use a strong board to hold it open. This is obviously dangerous, so have a couple of buddies and a couple of holders.
 
I have never tried this, but someone mentioned it to me once. You can plug a jumper pack into the 12 volt accessory and raise the hatch so you can get to the batteries.
 
There is also a port under in the rear seat storage area that you can take out then reach through to pull the pin on the hydraulic lift.
 
lg260ss said:
I have never tried this, but someone mentioned it to me once. You can plug a jumper pack into the 12 volt accessory and raise the hatch so you can get to the batteries.
Click to expand...

Yes, this is 100% true. IN FACT you can raise your hatch with NO BATTERIES with this method.

The 12 Volt will back feed the system.
 
toofast said:
lg260ss said:
I have never tried this, but someone mentioned it to me once. You can plug a jumper pack into the 12 volt accessory and raise the hatch so you can get to the batteries.
Click to expand...

Yes, this is 100% true. IN FACT you can raise your hatch with NO BATTERIES with this method.

The 12 Volt will back feed the system.
Click to expand...

Any chance of the lift drawing too much juice and frying the relatively light wires?

I wonder if the heavy-looking posts under the dash are for jumping, but I do not see anything like it on the schematics.
 
I don't think the 12 volt accessory plug will carry the current needed to operate the lifting ram. I suspect somethink would burn out. I would either do what Scott said (remove access cover, pull the pin and then get three people to lift the hatch), or can't you just connect the shore power, turn on the battery charger and either raise the cover using the charger (if powerful enough) or wait 10 hours to charge the battery enough to lift the engine hatch?
 
Yes it will handle the power. SeaRay actually includes a cigarette lighter end connected to a 12-14 gauge wire fit with battery connections for exactly that purpose i.e., some people take their batteries out when the boat is stored in the colder/winter climates and connecting the cigarette lighter end to the 12 volt power outlet at the helm with the other end to a 12 volt battery pack works line a charm.

Trust me, with the amount or repairs that I had to do this past winter in my engine room (associated with Hurricane Sandy damage) it was the only way that I could lift the hatch.....
 
Unforgettable said:
Yes it will handle the power. SeaRay actually includes a cigarette lighter end connected to a 12-14 gauge wire fit with battery connections for exactly that purpose i.e., some people take their batteries out when the boat is stored in the colder/winter climates and connecting the cigarette lighter end to the 12 volt power outlet at the helm with the other end to a 12 volt battery pack works line a charm.

Trust me, with the amount or repairs that I had to do this past winter in my engine room (associated with Hurricane Sandy damage) it was the only way that I could lift the hatch.....
Click to expand...

I believe you, I believe you ;D ;D.
 
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