460 watt solar setup: wire sizes?
I want to change out my old 50 watt panel and 10 amp controller with at least one and hopefully two 230 watt 24 volt panels and whatever controller would be best. Right now the roof on my fifth wheel ...
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Testing for solar with battery charging plus load and no load.
Reached absorption stage at 14.6v showing 18.2 amps on Trimetric, -10.1 AH (not sure how well "zeroed" that is, but at some high SOC anyway) Absorption is supposed to last two hours with this controller
Amps quickly dropped off so I ran the test with Tri showing 14.4v now, 11.9a and turned on an 8 amp load (laptop and TV) thinking this was within the solar max amps.
Tri did a momentary wobble in amps and volts, then settled back at what it was at before load turned on--14.4/11.9ish (and still tapering)
So somebody must be running that 8 amp load :), and no change in battery charging amps.
Confirmation test:
No load--14.4v, 8.1a
Turn on loaded inverter--14.4v, 7.9a( still tapering in absorption)
Trimetric shows net amps. We have the -8 amp load and +8 amps of solar to run that cancelling, leaving the battery charging amps showing as the net amps
Reached absorption stage at 14.6v showing 18.2 amps on Trimetric, -10.1 AH (not sure how well "zeroed" that is, but at some high SOC anyway) Absorption is supposed to last two hours with this controller
Amps quickly dropped off so I ran the test with Tri showing 14.4v now, 11.9a and turned on an 8 amp load (laptop and TV) thinking this was within the solar max amps.
Tri did a momentary wobble in amps and volts, then settled back at what it was at before load turned on--14.4/11.9ish (and still tapering)
So somebody must be running that 8 amp load :), and no change in battery charging amps.
Confirmation test:
No load--14.4v, 8.1a
Turn on loaded inverter--14.4v, 7.9a( still tapering in absorption)
Trimetric shows net amps. We have the -8 amp load and +8 amps of solar to run that cancelling, leaving the battery charging amps showing as the net amps
