Thanks for the prompt replies, everyone!
I'm not sure why the breaker was tripping; but, after tightening the terminals, it stays on as intended.
As for the vacillations, my battery monitor
only displays a single
decimal so rounding error is a factor. I've talked to Xantrex about this in the past. If there is any fluctuation either side of 0.05 amps, however tiny, the reading will fluctuate in 1/10 amp increments.
I don't think the fluctuation is in the light circuit, but that circuit, at 0.15 amps, puts me close to the line for rounding up or down. Rather, I think the fluctuation is in the normal boat load, which is also added to the monitor
display. I had switched off the solar
panel for these readings, and it usually displays a small load as the batteries settle after the trickle is removed.
(I didn't use the multimeter on this, just the house bank monitor--so I would expect some noise
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