G'day,
I have a Bluesolar MPPT 150/70 that was previously charging four Rolls S600 batteries in a 24 volt configuration. I have changed to four Trojan L-16h-AC batteries in the same configuration. Trojan specifies a bulk charge voltage of 29 volt at 25 degrees C. The MPPT 150/70 will not go above 28.8v on bulk. I have adjusted the absorption voltage to 29.4 volt. The extra 0.4 volt is to compensate for the measured voltage drop between the charge controller and the battery.
Question: How do I adjust the Bulk voltage on a BlueSolar MPPT 150/70?