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Occasionally when I am on shore power or running my generator I'm getting brown outs (power failures that last 1-2 seconds) on my 12v systems. I believe the problem is the 12v converter inside my Progressive Dynamics 7231 power box. I have already disabled the battery charging feature (by unplugging the circuit board), now I think the converter is on the fritz. My plan is to replace it with a Progressive Dynamic PD9140AV RV Inteli-Power 9100 Converter/Charger 40 Amp. (amazon link). I intend to find the 12v line coming out of the power box and hook it up to this new box, then wire the 120v AC connection in to the distribution panel directly. My existing set up (see attachment for details) is that I have a Marinco Guest 20amp charger powering 3 deep cycle batteries (as well as 200watts of solar). With this, i do not need the "charge wizard" features of the Progressive Dynamics converters. My questions are: Should I (can I) disable the charging features of this converter? Would it be better to replace the Progressive Dynamics 7231 Power box entirely? I don't really want to redo all of the AC wiring if I don't have to. Can I remove or disable the Converter/Charger features of the 7231 so that they don't power up when I'm on AC power (I believe the charging features are already disabled)? Am I missing something here?