I put new batteries in my SU 1400 RM and discover that my UPS incorrectly shows batteries discharged after a a few minutes. I found the EXACT same symptoms and cause and solution on the forums, and the solution was to enter a new constant for the batteries (calibration key)
I also found the instructions online for how to adjust the constant using a serial terminal. Now I just need the value to set the constant to.
Could you post the battery constant / calibration key value I should use for the Smart-UPS 1400 RM ?
You can do a manual calibration. Load the UPS to 30% or more (ie, 285W or more for your UPS), make sure the battery is charged 100%, unplug it, and let it run until it turns off.
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