http://en.wikipedia.org/wiki/Authentication

Authenticating the battery belongs in the device:
"Authentication devices range from simple identification features to secure=
 cryptographic products using an SHA-1 HMAC. "

A counterfeit battery might be bad in these categories:
"Portable medical
Diagnostics, insulin pumps, heart rate monitors, blood glucose monitors
Military
Radio, night vision devices"=20

-----Original Message-----
>From: Chris McSweeny <cpmcsweeny@gmail.com>
>Sent: Nov 11, 2014 4:54 PM
>To: "Microcontroller discussion list - Public." <piclist@mit.edu>
>Subject: Re: [EE]:: Securely encrypt your batteries with HMAC SHA-1
>
>How reassuring. I often worry about people stealing data from my batteries=
..
>
>Seriously, what is the application for this?
>
>
>Chris
>
>On Tue, Nov 11, 2014 at 10:41 PM, RussellMc <apptechnz@gmail.com> wrote:
>
>> Cryptographically secure battery management ICs..
>> One way to ensure that the data in your batteries is kept safe.
>> Or, to achieve other ends.
>>
>>
>> http://www.ti.com/lsds/ti/power-management/battery-li-ion-protection-sol=
utions-overview.page?DCMP=3Dtlead-power-bms-pwr-bms-gmap-batterysafety-en&H=
QS=3Dtlead-power-bms-pwr-bms-gmap-batterysafety-bs-lp-en
>>
>>
>>       Russell
>> --
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