Need some help on this!

[Fishin'Fool]

The first battery i owned was giving me over-heating problems. So i figured it was a defective battery, and went and got another one. Then, about a week after owning the new battery, i was trolling on speed 3 on my trolling motor, and it literally blew up. It sounded like a rifle shot. The motor is a Bass Pro Shops Prowler 50 pound thrust. I am including some pics of the battery. Any advice on why this happened?

Thanks.
Fishin'Fool!

 

[Foureyes194]

how do you have the trolling motor hooked up? just straight to the battery? no fuses or even a relay?
I would start by checking the power rating of the battery and the trolling motor.
What guage wire are you using?
then I i would look into hooking up(if you don't have it already) a fused, switch set up. power going to switch and then
fuse and then to the tm. hope this helps.

 

[Derek]

It happened because the wire size is too small for your motor, so the wires got WAY to hot and obviously you must not have a fuse/circuit breaker wired in. To fix it up your wire size to the manufacturer's specs and wire in a 50 amp resettable breaker, and get a new battery.