Heres the boat
http://rubberboats.com/product/inflatable-mariner-4-rigid-inflatable-boat.html
it has a video.
Heres the motor
http://rubberboats.com/product/intex-trolling-motor.html
video below.
Here is the new battery charger.
http://www.walmart.com/ip/Schumacher-XCS15-15-10-2-Amp-Marine-Battery-Charger/15140196
The battery I purchased was a Walmart Everstart 120amp which is double the manufacturers recommended "requirements." But recommended by the company who sells the boat.
When I mentioned a whistling, blowing sound, that is the sound of the new battery charger. The original on that I only had on the battery made no so. It was advertised as a "speed charger" for 12 volt batteries...But the truth was, it was only a cheap trickle charger and was not made to charge marine deep cycle or even car batteries. It is simply for lawn mowers and motorcycles, to keep the batteries working properly over the winter.
Here it is.
http://www.walmart.com/ip/Schumacher-SpeedCharge-Battery-Maintainer-and-Charger/13005742
It's possible in the short 12 hours I had this charger connected to my battery, it could have messed things up being the battery is brand new.
On a totally separate note, last night when I got the battery in and thought it was just about dead, the new battery charger read it had 60 percent left in it. I don't know what to believe....If the reader on the trolling motor is wrong or as said earlier, if the batter goes down to 50 percent, its going to show on a meter as almost dispensed.
The new charger charged for an hour on speed 15 amp and said it was finished. I unplugged everything and then reconnected and it now said it was only 86 percent full. I began charging for hours repeating this cycle until it finally displayed 100 percent and remained.