We have 1800W of solar
with two Outback 60's on our L450. The setup is really simple and adds very little in extra weight (solar panels
+ 40Kg). It is here on the CF somewhere. Probably in one of the Lagoon
We also have 1400Ah of LiFePo. Lithium is not quite as complicated as some people make it. Just a lot to unlearn from lead acid. I have two friends one a doctor th eother a financial guy, who have LiFePo that I installed for them. Every few months a questions, and they are fine. Today we ran the watermaker
(Spectra - 18GPH, 70l/h) for 4 hours and started the hot water
tank because the batteries were full. Nice sunny day though here in The Bahamas
. A series on gray days and we have to start thinking about not being to wasteful.
Gel is not a good option. The better stay with lead acid.
For the high power draw (dish washer etc.) you need LiFePo. All other batteries will have a terrible voltage sag when you draw 150+A. Your autopilot
will complain all the time about low voltage, even though your lead acids may still be 80% full.
With lead acid you only get 85% charge efficiency above 80% SOC. So you loose 15% right away. Then when you draw a lot of amps, each one of them counts for 20% or so extra due to the Peukert effect on lead acid. So you loose another 20%.
With Lithium you get 99+% efficiency both ways.