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dave-t avatar image
dave-t asked

Smartsolar 100/30 showing low amperage but correct voltage in bulk charge mode

My Smartsolar 100/30 controller shows low wattage coming from my panel array but shows the correct voltage. Measured amperage from the panels on a recent cloudy day was around 4-5 amps but the app reports 8 or 9 watts and 0.5 amps in bulk charge mode. It takes forever to charge the 200Ah battery. When originally installed everything was working correctly showing appropriate amperage. At some point there was a firmware update for the charger and things seemed to go downhill after that although it could be a coincidence. Any suggestions? I have checked/replaced connections to no avail.

BMV Battery Monitorfirmware update
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klim8skeptic avatar image klim8skeptic ♦ commented ·
Post a screenshot of your history, showing battery min/max voltages etc..
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dave-t avatar image dave-t klim8skeptic ♦ commented ·

A couple screen shots from this morning. Panels are shaded at the moment...

screenshot-20210710-085807.jpg

screenshot-20210710-085757.jpg

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1 Answer
Alexandra avatar image
Alexandra answered ·

@Dave T

The panel can read 4-5 amps but that is with no load.

You need more solar panels or connect them to add the voltages up. Your battery is not being charged up properly and needs some help.

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