MPPT RS 450/100 -Tr inconsistent charging

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wmhaynes asked Mar 24, '24

MPPT RS 450/100 -Tr inconsistent charging

I have two sets of solar panels. One has 6 panels at 410w. The second has 8 panels at 410w. Occasionally I have seen both working full steam but often I will have one at 2000w and the other at perhaps 300w. Today one is at 1800 and the other is at zero. Sometimes one is taking the lead and producing most of the power and sometimes it’s swapped. They are on the roofs of teo buildings each facing the same direction at a similar angle. Is this something weird the equipment is doing or something I’m configuring wrong. In the summer Ive gotten up to 7500w or so from the two sets when they’re both producing well.

Thanks in advance for your help!

MPPT SmartSolar mppt rs

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Answer 1 · 2024-03-24T15:52:43Z

wmhaynes answered · Mar 24 at 03:52 PM

The history seems to see both legs charging.

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Answer 2 · 2024-03-25T14:21:55Z

Alexandra answered · Mar 25 at 02:21 PM

@wmhaynes

You batteries are they can managed (i can see batt temp usually is an indicator of that)?

It is likely the battery limiting the mppt.

They both produce but are capped by something in the system.

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Answer 3 · 2024-03-25T14:22:30Z

wmhaynes answered · Mar 25 at 02:22 PM

Here we are the next day and there is charge coming from both legs.

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