The new Drummond Portable Pipet-Aid XL has a long light weight handle that lowers the arm-lift required to perform the same pipetting operation as with a conventional pipettor. The lower, more comfortable arm position reduces shoulder and neck strain, particularly when working within a hood. An adjustable hand rest and a removable stand enable setting the unit down without contaminating the pipet. A new, quiet, more efficient pump reduces background noise and extends operation period between charges. The unit can be charged while being used to eliminate downtime. Three-speed settings provide precise control for both aspirate and dispense modes.