I recently bought a shiny new 15 hp Honda outboard
for my dinghy
. I got it with an electric
start so that my wife can start it without wrecking her back. I hadn't given the battery
much thought, just wanting a light weight 12 V AGM battery
that can get knocked around and still start the dinghy
I bought a small (6" x 7" x 4", 19 lbs) AGM
battery at a Boaters World close-out sale
that said it was for PWC's and jetskis. I figured it would be perfect, but I'm just about to install it and I see that it's only 14 Amp-hrs capacity and they want a charge rate of 1.9 A for 10 hrs, or 9.5 A for 1 hr.
I REALLY like the idea of having a physically small battery. Less weight for my davits
every day, etc.
1. Starting - Honda
says to use a battery with 30 A-h capacity. How much juice does it actually draw to start? Will my little 14 A-h one simply not start it (of course once I have it charged I can test if it'll start it at all)? More importantly, will the little battery just die after a few months of full time use?
- I'm pretty sure my engine
has a voltage regulator
built in so that it'll stop sending current
when the battery reaches a full charge. But if I get on plane soon after starting and the engine
throws 12 Amps at the battery will there be unwelcome fireworks under my seat? If yes, can I "de-tune" Honda alternator
to send out no more than 9 Amps?