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sv-the-dream asked

BMV712 not reaching 100% SOC after software update

we’ve updated our BMV712 as requested by the app when replacing our batteries and while adjusting the settings and ever since the SOC never reaches 100% regardless of how many hours charging under solar or engine, lingering on 94-96%.


have confirmed all settings on MPPT, all battery connections. Manually synchronised the BMV after hours of batteries being in float mode under solar and engine and every day still doesn’t get to 100% SOC on the BMV712.


current firmware v4.05 on the battery monitor BMV-712 smart

current firmware v2.23 on the BMV-7xx Smart Bluetooth Interface


fear there may have been a glitch during the update. How can we revert the update and try again?

BMV Battery Monitorfirmware update
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Daniël Boekel (Victron Energy Staff) avatar image Daniël Boekel (Victron Energy Staff) ♦♦ commented ·
Hi @SV The Dream

You'll have to share your settings and what voltage / current has been reached to give a meaningful answer here.

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sv-the-dream avatar image sv-the-dream commented ·

52706AFC-4C48-4E25-8B9E-D0F161CF07A8.jpeg00C5DAAE-F0F3-4303-8FEA-4C218579A9F2.jpeg07447AAE-9B93-4AD6-8311-52FBE4A52408.jpeg

Hi @Daniël Boekel (Victron Energy Staff)

do these images help?

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52706afc-4c48-4e25-8b9e-d0f161cf07a8.jpeg (1.9 MiB)
00c5daae-f0f3-4303-8fea-4c218579a9f2.jpeg (2.1 MiB)
07447aae-9b93-4ad6-8311-52fbe4a52408.jpeg (3.2 MiB)
sv-the-dream avatar image sv-the-dream sv-the-dream commented ·

@Daniël Boekel (Victron Energy Staff)

this photo might be more accurate regarding your info request. Batteries were replaced 6 days ago. All settings changed accordingly on the same day.

we had some difficulties with the MPPT but have updated the software successfully yesterday and achieved the desired voltage of absorption yesterday it seems but not today (?) although we are already in float mode.


21BCAB8E-EA66-4B59-869F-539DF262A90C.jpeg

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21bcab8e-ea66-4b59-869f-539df262a90c.jpeg (2.4 MiB)
Daniël Boekel (Victron Energy Staff) avatar image Daniël Boekel (Victron Energy Staff) ♦♦ sv-the-dream commented ·
Charged voltage is much too high
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sv-the-dream avatar image sv-the-dream Daniël Boekel (Victron Energy Staff) ♦♦ commented ·

These are gel carbon, we selected the preset for gel Victron deep discharge (number 2) on the MPPT menu. That matched the battery specs although they are not Victron

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sv-the-dream avatar image sv-the-dream Daniël Boekel (Victron Energy Staff) ♦♦ commented ·
Is the charge voltage to match 13.8 (float voltage)?
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Daniël Boekel (Victron Energy Staff) avatar image Daniël Boekel (Victron Energy Staff) ♦♦ sv-the-dream commented ·

I meant the charged voltage in the BMV, please watch this:


https://www.youtube.com/watch?v=mEN15Z_S4kE

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