Manual
Enerdrive ePRO Plus Battery Monitor Owners Manual (Rev. 1.02)Page 40
Please note that when using the +B2 input for midpoint voltage measurement, you should
set Function F2.0 to ‘MIDPNT’. You can also congure the +B3 input for midpoint voltage
measurement, but only one of these two inputs can be used at the same time for this purpose.
When connecting multiple series strings in parallel to increase the total battery capacity, things are
getting slightly more complicated. Normally such series strings should not have interconnected
midpoints like indicated in the next image:
The reason for this is that through the interconnected midpoints, one bad battery in a series
string can damage all other batteries if not being monitored correctly. However, when decent
midpoint voltage measurement has been applied and an alarm is triggered when the voltage
dierence is too large, the midpoints of the series strings are allowed to be interconnected. This
will result in the following connection diagrams: