maemo.org - Talk - View Single Post - [HW-FIX] losing time/date on battery swap? Replace bupbat

	joerg_rw	2015-10-15 , 21:08
	Posts: 2,222 \| Thanked: 12,651 times \| Joined on Mar 2010 @ SOL 3	#26

Originally Posted by pichlo

We used some RTC chips back in mid-1990's, can't remember the type number, that had the battery built in. So clearly not vety big. IIRC, the catalogue page claimed the battery should last 10 years.

Infamous DALLAS chip, had a Lithium battery which had quite a few more Ws than the polyacene. Probably something like 100mAh * 3V = 18Ws. And the clock in DALLAS was less "greedy" than the TPS65950

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