MPPT 150/100 CHARGING ISSUE

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danielct asked Sep 4, '21

MPPT 150/100 CHARGING ISSUE

HI. I am using an SmartSolar MPPT 150/100 which at the end of absorption stage instead of switching to float stops charging the batteries so all my consumption switches on the batteries with full sun up. Settings made by my local dealer...same issue. Any ideas on that?

MPPT SmartSolar

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klim8skeptic ♦ commented · Sep 04, 2021 at 11:42 AM

Some details would be useful.

Battery type.

Charger settings screenshot.

Charger history screenshot..

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Answer 1 · 2021-09-04T20:02:38Z

danielct answered · Sep 04, 2021 at 08:02 PM

ultracell UCG 200-12 AGM

Charging will resume and continue with float only if I start a big load......and after stoping it....if I start it again charging will again stop.

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klim8skeptic ♦ commented · Sep 05, 2021 at 03:35 AM

A couple of things to comment.

Your data is from 2 different days??

Your battery settings could be tweaked, re bulk/absorp voltage and temperature compensation.

Seeing as your on the VRM some data like this would be useful..

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mppt-rebulk.png (457.1 KiB)

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