there are settings in most BDIs to set for the "ramp" of the discharge, but if your battery drops from 85 VDC at rest to 71 vdc under load (and don't try to read it when moving, just lifting to max lift and hydraulic stall for less than 4 seconds) you have a bad battery, or at least a bad cell. (10% voltage drop=needs battery checked [85vdc minus 71vdc= 14vdc > 8.5vdc=10% of 85vdc])
is your charger a 3phase A/C, and are all 3 phases equal input power?
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