backup battery and case screws questions

Martix martix.cz at gmail.com
Sun Oct 24 18:51:07 CEST 2010


I suggest using double-layer super capacitor* intead of Lithium backup
battery. These capacitors stores energy for a long time, like a
battery and they have much longer lifetime. 0,2 F capacity should be
enough for RTC backup on several hours, maybe days.

* http://cz.farnell.com/jsp/search/browse.jsp?N=1002210+5117013+5087727+5400445&No=0&getResults=true&appliedparametrics=true&locale=cs_CZ&catalogId=&prevNValues=1002210+5117013&filtersHidden=false&appliedHidden=false&originalQueryURL=%2Fjsp%2Fsearch%2Fbrowse.jsp%3FN%3D1002210%26No%3D0%26getResults%3Dtrue%26appliedparametrics%3Dtrue%26locale%3Dcs_CZ%26catalogId%3D%26prevNValues%3D1002210

Best regards,

Martix

2010/10/24 Alfa21 <freerunner at my.is.it>:
> 2010-10-23 at 20:44 Benjamin Deering
>> Has anyone done this replacement before?  any gotchas?
>
> no, but I think it's not too difficult if you have a little experience with DIY.
> I've this (known) problem too but I'm afraid if I replace the battery it'll die as the old one... not sure... but I think I can live with that and so I never remove the main battery.
>
>>
>> Also,as anyone found a source for replacement torx case screws?
>
> I think it's easy to find in any good hardware shop (not computer-hardware eh! the one that sells you screwdrivers, electric drills & Co.)
>
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