Battery size and cranking amps

[vanbc]

What I plan on running it a Humming bird 570DI, a few LED lights and a bilge pump.
What battey should i get without adding alot of weight and size. I dont fish that often and I am always neer power to charge it.

any help would be great
Thanks

 

[TNtroller]

in all probability a small lawn mower batt will suffice as the FF does not pull much power, the bilge pump will not be running constantly (will it ?) and lights, if led should be low power as well.

 

[vanbc]

in all probability a small lawn mower batt will suffice as the FF does not pull much power, the bilge pump will not be running constantly (will it ?) and lights, if led should be low power as well.

I hope to never use the bilge pump. But great thanks for your help. small mower batery it is.