Do I Need a BMV for Accurate SoC Monitoring with MultiPlus and CCGX in a 48V Lead-Acid Battery Setup?

DIY
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1

Hi Victron community,

I’m using a 3kVA 48V MultiPlus inverter/charger with 8 x 200Ah lead-acid batteries (wired in a 48V configuration). I’m planning to install a Cerbo GX (CCGX) to monitor the system. Since the MultiPlus is currently my only charging source (no solar or other chargers at the moment), can I rely on the MultiPlus data to display the State of Charge (SoC) via the CCGX, or would it be better to add a BMV battery monitor for more accurate SoC readings?

Are there any additional benefits to using a BMV in this setup, and what would be the best approach to ensure accurate monitoring of my lead-acid battery bank?

2

Install a BMV for the most accurate and meaningful information. The MP battery monitor is only ok.

You may consider installing Victron Battery Balancers to keep all of those cells playing nicely together.