MrWizard wrote:
I think I would use the inverter method, I would go by watts not amps, the inverter will be better at maintain a constant power use, volts go down amps go up, still the same about of power being used
The inverter method offers that, but OTOH, you can find the right amount of amps better with different combos of lamps and fans to fine tune the amount for various battery 20 hr rates.
Takes a bit of experimenting with how many lights to get the right amount of amps, but each lamp singles and doubles, fluorescent or incand. gives you finer adjustments. (watching the amps on the Trimetric)
Not sure how to find an adjustable 120v load for the inverter. I did it with 120v lamps using different wattage bulbs, but not so good for fine tuning the amps.
I am useless with watts, so I go with amp hours that I can sort of understand. :( What is the 20hr rate of AH capacity in watts anyway? Too confusing for me!
