Trolling Motor Battery for Dinghy

[goombah]

I have to use a dinghy to get from a rocky shore to my buoy. It's not too long of a trip, but would prefer mechanical to manual propulsion since rowing will take up a lot more room. I have a 30lb Minnkota Endura that I use on my little boat that would be perfect for this application. However, I need a light battery as I will have to schlep the motor, battery, etc from the car to the dinghy, which is a couple hundred yards. I was thinking an AGM PWC battery would fit the bill. West Marine has one that weighs around 17 lbs. That sounds a lot better than the 40 or so that my current one is. Would this work? I heard that AGM's are good for deep cycle applications.<br /><br />Thanks for your help.

 

[amirm]

Re: Trolling Motor Battery for Dinghy

It should work in clam waters. How much run time you get though, is something you need to consider. Take the current rating of your motor, and then divide the current capacity of the batter by it. Then halve this yet again (you never want to drain a battery below 50%). This will give you the run time.<br /><br />My sense is that a PWC batter will be too small to do the job reliably.<br /><br />Amir