Olimex Support Forum

Others => UEXT => Topic started by: marcpaul on January 27, 2014, 09:00:40 PM

Title: mod-rtc + 3v lithium cell
Post by: marcpaul on January 27, 2014, 09:00:40 PM
hey!

i tried the mod-rtc with a cr2032 3v lithium cell but it doesn't work.
when powered over uext everything is fine...

anyone tried this with success?

should i use another lithium cell?

thanks for any ideas
marc
Title: Re: mod-rtc + 3v lithium cell
Post by: LubOlimex on January 29, 2014, 10:41:57 AM
Hello Marc,

CR2032 is the correct one. Probably the battery was discharged or faulty.

Make sure to use a battery of good quality that wasn't sitting on the shelf for a long time.

Just double-checked the test routines used when manufacturing MOD-RTC. It includes a battery test.

Best regards,
Lub/OLIMEX