[time-nuts] Battery for ESE 911 GPS Receiver/Clock

[Gregory Beat]

Yes, I received that notice yesterday (Panasonic LC-R061R3P)
https://www.digikey.com/product-detail/en/panasonic-bsg/LC-R061R3P/P128-ND/6671

Panasonic is discontinuing many of their “LC” rechargable (sealed lead-acid) batteries.  Panasonic battery orders are accepted by Digi-Key until September 30.
—
Digi-Key has a recommended substitution from BB Battery (6V 1.3Ah), BP1-2-6-T1.
https://www.digikey.com/product-detail/en/b-b-battery/BP1-2-6-T1/522-1000-ND/653321
—
ESE used this 6 V SLA battery in many of its master clock designs.
This battery form factor is used in a number of electronic appliances, so other battery manufacturers are available.

A DIY alternative would use a 4-cell Cylindrical Battery Holder, such as those available from Keystone Electronics in New Hyde Park, NY (or Eastern Asia mfg.).
The 6 Volt, 1.3Ah specification could be met with “C” cells wired in series.
https://www.keyelco.com/category.cfm/Battery-Coin-Cell-Holders-Contacts-Clips/Cylindrical-Cell-Holders/p/404/id/1213

greg
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From: Frederick Bray
Sent: Tuesday, April 28, 2020 11:00 AM
To: time-nuts at lists.febo.com
Subject: [time-nuts] Battery for ESE 911 GPS Receiver/Clock

For those of us with an ESE 911 GPS receiver / master clock, Digi-Key has announced the end of availability / end of life for the
internal SLA backup battery.