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firmware' when one of the devices has an incompatible firmware while using DVCC.
In case of an ESS System, the ESS Assistant needs to be version 164 or later (Released in November
2017).
4.3 DVCC effects on the charge algorithm
Our inverter/chargers and MPPT Solar Chargers use their own internal charge algorithm when in
stand-alone mode. This means that they determine how long to remain in Absorption, when to switch
to Float, when to switch back to Bulk, or Storage. And in those various phases they use the configured
parameters in VictronConnect and VEConfigure.
In certain systems, the internal charge algorithm is disabled, and the charger is then working with an
externally controlled charge voltage target.
This guide explains the different possibilities:
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Troubleshooting
