assembly 210 having a pair of rear receiving slots 230 for engaging with the rear hook members 224 on the battery clasp 220 fig1 is a bottom view of the battery housing 212 showing a front hook engaging member 232 for engaging with the front hook 222 see fig1 the front hook engaging means 232 may also operate as a divider between the battery compartments 204 39 for separating and orienting the batteries not shown fig1 is a side view of the alternate outboard battery assembly 210 engaged with a battery clasp 220 the battery clasp 220 has a front hinge 126 34 for engaging with the compact wireless telephone 100 and a rear hinge 172 double prime for engaging with a wrist strap not shown the secondary portion 216 of the battery housing 212 is designed to generally follow the contour of the human wrist along the wrist strap not shown the battery clasp 220 has a front hook 222 and a pair of rear hooks 224 which are biased to create a compression force on the housing 212 so as to retain the alternate outboard battery assembly 210 to the clasp 220 the alternate battery assembly 210 is installed and removed in a similar manner to the battery assembly 130 it is to be understood that the above description is intended to be illustrative and not restrictive many other embodiments will be apparent to those of skill in the art upon reviewing the above description although the above inventions have been described in connection with a cordless telephone system it should be apparent that the concepts extend to any cordless or cellular telephone application requiring a compact portable telephone or speaker phone unit the scope of the invention should therefore be determined.