A portable combination for measuring a glucose concentration value in a samplehas a portable glucose meter(GM) having a test strip port for receiving a disposable electrochemical teststrip, means for calculating a glucose concentrationvalue in a sample applied to a test strip received in the test strip port, andoptionally a rechargeable GM battery. Next thecombi-nation has a portable rechargeable supplemental battery pack (SBP). Thecombination also has a web enabled portable device(WEPD) having a rechargeable WEPD battery and a wireless connection to theinternet. The GM, the SBP, and the WEPD areelectrically coupled to allow power transfer between the GM, the SBP, and theWEPD. The GM and the WEPD arecommunica-tively coupled to allow for data transfer between the GM and theWEPD. The GM and SBP are detachable from and reattachableto the WEPD to form the portable combination. Lastly the combination has meansfor managing battery operations of thecombi-nation. These means are effective to cause the GM to draw operatingpower first from the SBP, second from the WEPD battery,and third from the GM battery, if the GM battery is present.
