Was on the lake last night, my battery started fine at the ramp. After I fished my first spot the motor wouldn't turn over. At first, I thought it was the starter, but I changed the battery connection to my trolling battery and the motor cranked right up. A couple questions:

 

1. What is the best cranking battery, or is there really much difference?

 

2. Do you charge your cranking battery with your on-board charger, or trolling/accessory batteries only?

 

Don't know if it's the best but I bought a Sears Platinum this year. Big $$$ battery at the recommendations of others. Great battery but expensive, however I am using it to start my 225 Merc. Opti. So far so good and a lot of power. Motor doesn't even hesitate. I charge all my batteries with the on-board charger by Dual Pro. PS: You will get a lot of opinions on here. You will have to decide for yourself.

X2 on the Sears Platinum. I charge all three batteries with a Minnkota on board charger after each outing.

X2 on the Sears Platinum. I charge all three batteries with a Minnkota on board charger after each outing.

Thanks for the advice. How big is that smallmouth in your profile pic?!

Thanks for the advice. How big is that smallmouth in your profile pic?!

 

7-6.