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[email protected] tsmwebb@gmail.com is offline
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First recorded activity by BoatBanter: Sep 2006
Posts: 859
Default Batteries - what's best and cheapest for long term cruising thesedays

On Jun 17, 3:07*pm, Salomon Fringe wrote:
...
I'm not seeing anything out of the ordinary. Do notice that may not be
cycling your batteries very heavily. Also, your energy budget seems
quite low! How do you live aboard? Washer? Microwave? TV? Computer(s),
refrigerator/freezer?


I wish I could answer the cycling question better. My tactic is to get
a charger of some sort on the batteries when the voltage starts
dropping below ~11.9v when hit with a load. That load is typically ~8
amps when the fridge and freezer compressors pop on. I'm not sure how
much DOD that represents. At sea with the autopilot, lights,
computer, SSB, etc and the solar panels usually shaded, they do get a
deeply cycled for sure.

As for loads, well, I think my boat is pretty systems heavy but we
stop short of the washer/dryer and microwave. We do have two
computers a 12v refrigerator and a 12v freezer each w/their own
compressor, an electric auto-pilot, SSB, VHF, RADAR, GPSs, 1500 watt
inverter, instruments, a diesel heater (seldom used), an electric
windlass and lights (and probably some other stuff I'm forgetting).
We live on board full time and cruise extensively. Our boat is a 42'
catamaran.

Your set-up is in a whole other league, though. I'm kind of in awe.
I can see with a bank that size that cost must be a much more serious
factor. How do you like 24 volts?

-- Tom.