Forum Discussion
pianotuna
Mar 30, 2020Nomad III
DrewE wrote:
Yes and no. The ECM sees the voltage at the chassis battery. Provided the two batteries are connected with a low enough resistance connection, the voltage will be practically the same at both batteries, and the ECM will see that same voltage and not deem the battery to be charged and drop the voltage until both are at whatever it thinks is fully charged.
Hi DrewE,
No. Even batteries that are side by side must be wired in a balanced manner. That would be the only way the ECM could "see" the house batteries. See the smart gauge site for an explanation if you do not understand balanced wiring. In an ideal world all the batteries would need to be identical.
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