question

hwaters asked Apr 11, '23

Solar state "Off" and no voltage once "Absorption voltage" reached

Hi

I have a 180w Solar Panel and a SmartSolar 75/15 controller installed in my campervan. I have recently installed a new leisure battery (12V 120AH Leoch Adventurer AGM Leisure Battery). I set the battery preset to "AGM spiral cell".

The Solar now sets itself to "Off" and the Solar voltage goes down to 0 once the the battery reaches the "Absorption voltage" of 14.7v in daylight. The charger never used to do that - it would always stay on Bulk, Float or Absorption.

Is this expected behaviour?

MPPT Controllers smart solar set-up help

solar1.png (184.6 KiB)

solar2.png (84.5 KiB)

solar3.png (63.0 KiB)

solar4.png (203.3 KiB)

2 |3000

Attachments: Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

Modifications Space

Node Red Space