What (starting/cranking) battery for a 2001 Maxum 2300SC
I have two deep cycle batteries on my boat (both are 12v Deka Marine Master DC27 batteries)... one is much older than the other and is now struggling to hold a charge, so time for a replacement?... I thought I'd take the opportunity to buy a battery purely tasked with starting the engine (Battery 1) and have the Deep Cycle battery (Battery 2) to serve the "domestic" circuits when at anchor etc...
Assuming this is a sensible suggestion, does anyone have a recommendation as to what battery I should go for?
Thanks in advance,