On Sat, Mar 14, 2015 at 12:56 PM, Mike Cook <michael.c...@sfr.fr> wrote: > > >>> If true, what is the maximum current that can be >>> safely supplied by the pin? As above, is it safe to use a >>> non-rechargeable battery like a CR2032? >> >> I have a couple of UT+ receivers which were not equipped with batteries and >> I used a CR2032 for backup without any issue. They were disconnected >> sometimes for considerable periods on a number of occasions and the saved >> data was always accessible on power up. I don’t know how long a battery >> like that lasts. I have one, powered off, still with the battery in circuit >> that I pulled in 12/2010. Hmmm. might be worth powering it on to see. >> > > Well, I dug it out and checked the voltage across the CR2032. Down to > 2.8volts after 4yrs 3mths. Connected up the receiver ad powered up. > It came up in position hold mode with the coordinates that were stored in > 2010. 1PPS is on but I am only seeing 2 sats and am not to sync’d to UTC. I > think the almanac may be no good. I’ll leave it a while and see if t recovers. > > Anyway. Using a CR2032 is OK, at least with my hardware and you get backup > for at least 4 years.
Fantastic. Just what I wanted to hear. Thanks for checking. Also, my apologies for sending a blank reply to the list a moment ago. -- Pete Stephenson _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
