Review title is Dissapointed [SEP] I bought this to replace a Norelco 6848XL (about 10 years old?) that has worked well, but is beginning to have poor battery life.  This new 8140XL appears to me to be cheaply built, to the point that I find myself still leaning towards using the older model.  In more detail, the cutting heads are slightly larger on the 8140, but much less smooth (even painful to an extent) than the older model.  Also, the cutting head is held on to the 8140 by a very sloppy connection and falls off very easily when you are trying to clean it.  The whole general construction of the 8140 seems to much less "solid" than the older 6848.<br /><br />In short, Norelco seems to have gone towards cheaper cosnstruction in an attempt to save on costs (and yes, to be able to offer the 8140 at a "low" cost to the consumer).  However, this consumer is not impressed.  In hindsight, I should have instead sent the 6848 in for new batteries.