Ive got an 800cca group 24 cranking battery that is about 8 months old for sale. It works great but not enough for all that I'm running on my boat now. Worked very well for cranking, grey scale electronics and live wells. It could probably last you a month or more on one charge for a trolling motor on a jon boat. It some how got a small dent in the upper corner but isnt cracking or leaking, doesn't seen to lose excessive voltage either. Good battery $50 make an offer of trade me something.
Ive also got a ProSport duel bank on-board charger. 20 amps with light indicators. This is probably 10 months old and looks brand new. $125 and its all yours.