Recommended Battery for F150?

[lunasea]

Yamaha specifies 182 minute Reserve Capacity. The first places I've looked for a battery (Sears, BoatUS, Optima) have deep cycle marine batteries with RC a lot lower.

For example, the Optima Group 31 is 155 minutes. (and how come Optima has only 36 month warranty - I thought Optima's are supposed to last longer than conventional batteries).

So, how important is Yamaha's specs?

I only have bilge pump, depth finder, and radio.

[Hamfisted]

I like the Trojan AGMs, they're available at Boaters World or online. They rate tops in comparison tests with any other battery and provide outstanding performance and long life.


Mike

[Ken]

lunasea,
Yamaha specs are for cranking purposes. You want a starting (cranking) battery for the outboard - not a deep cycle.
Since you are powering a few accessories also, then I would recommend a "dual-purpose" battery if you are going to have one battery only. The dual-purpose gives you a better cranking reserve than a pure deep-cycle, but also will deliver low power over a long period of time like a deep-cycle, and yet can handle a fast charge rate from the outboard's charging system like a "starting" battery.
A size 27 or 31 dual purpose battery would do the job for you.
Good luck [img]smile.gif[/img] ,
Ken K