[time-nuts] Motorola Oncore UT+ firmware upgrade & backup power questions

Neil Schroeder gigneil at gmail.com
Sat Jun 20 13:57:44 EDT 2015


I didnt see this well answered - the device loads firmware at each start
cycle.  If i am not mistaken you can even use ntp.


On Mon, Mar 16, 2015 at 1:34 AM, Adrian Godwin <artgodwin at gmail.com> wrote:

> Seiko and some other manufacturers used Supercaps for a while in their
> Kinetic watches. Electrically they're fine, but they turned out to have a
> shorter life than rechargeable batteries. They even replaced capacitors
> with lithium rechargeables when servicing the older models.
>
> In a backup situation they might do better : I believe the problems were
> caused by allowing them to discharge and exposing them to high
> temperatures, neither of which should occur in a timenut application (as
> long as they're not inside a stabilisation oven). However, don't think of
> them as a complete solution to ageing nicads - they're still a wet
> electrolytic and probably have a finer internal structure than a nicad, so
> are still subject to chemical ageing.
>
>
>
> On Mon, Mar 16, 2015 at 3:51 AM, Hal Murray <hmurray at megapathdsl.net>
> wrote:
>
> >
> > csteinmetz at yandex.com said:
> > > The Energizer AA and AAA lithium primary batteries (Li/FeS2) have a
> > shelf
> > > life exceeding 10 years,
> >
> > Like many things, it's temperature dependent.
> >
> > A classic trick is to store batteries in your freezer.  Aside from better
> > shelf life, you can probably find them in the dark.
> >
> >
> > --
> > These are my opinions.  I hate spam.
> >
> >
> >
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