Jason,
You should also realistically evaluate your passive charging systems.
I don't know where you're planning on sailing, but solar systems installers average the insolation (the amount of sunlight energy hitting the earth) by location. Your ID includes "UK", if you're sailing near Britain or Northern Europe, you can expect less than an average of 4 hours of max rated output from your PV solar panel. This works out to a theoretical 800wh in a day and factoring in the charging losses, I wouldn't expect more than 12-14Ah into a 48v bank per day.
While the Air-X generator has a max rating of 400w at 25kts wind speed; at 15kts wind speed, the output is below 100 watts. 24 hours in 15kt winds (windier than the anchorages that I choose) will generate about 1800wh, again the charging losses bring that closer to 1.5Kwh.
So with windy, clear weather, you might be lucky enough to collect charge your 48v bank with 45Ah (2.2Kwh) of electricity in a 24 hour period, but would most likely be much less.
Fair winds,
Eric
Marina del Rey, CA
--- In electricboats@
>
> Hi, i've been watching this group as I'm hoping to do a conversion in the future on my 30ft cat....
>
> This also excludes the 1 x 200W solar panel and 400w Wind Generator which main use would be recharging for free...
> Any comments?
>
> Regards, Jason.
>
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