Starting battery capacity for 9.8HP Tohatsu 4 Stroke outboard

[brico]

Hi, I am looking to buy AGM staring battery for my 9.8Hp Tohatsu 4 Stroke outboard. I do not want to go 'oversized' because of weight and price, so what sort of capacity should I be looking at? The engine starts easily when cold by pulling the cord, but it has the starter wired (now) so I'd like to have the easy option added to it.

 

[SKYCHENEY]

If you look up the starter, the spec shows .4KW

At 12v, I think that's about 33amps.

I think I'd go with a PWC battery that weighs around 12lbs

 

[brico]

Thanks, the main reason why I want AGM is because I tilt my inflatable by 90 degrees when stowed on davits and I want the battery that can be installed and safely tilted by 90 degrees. Led acid even sealed does not support this installation.

I found a PWC AGM battery for $100 ($130 CAD) at Canadian Tire shop. If there is any other type that can support this installation orientation I would love to hear about them.