jaapv Posted July 23, 2017 Share #21 Posted July 23, 2017 Advertisement (gone after registration) I believed this only happened with Ni-Ca batteries. Lithium batteries have memsory too. Don´t throw your old batteries they may have an after life Only if they are LiFePO4 batteries, and it is only relevant for use in electric vehicles. For all practical purposes our camera batteries have no memory effect. The phenomenon we are seeing here is the synchronisation of the battery electronics and camera software, which determines the battery level indication. In fact, discharging them fully regularly will shorten their life. Link to post Share on other sites More sharing options...
Advertisement Posted July 23, 2017 Posted July 23, 2017 Hi jaapv, Take a look here Battery drain. I'm sure you'll find what you were looking for!
martin0reg Posted July 23, 2017 Share #22 Posted July 23, 2017 So battery went from 3% to 95% after it turned off alone because of no battery left; just one switch on and battery was almost full again. I´ll keep following how this battery behaves. The same happened to me: https://www.l-camera-forum.com/topic/148213-non-leica-m9-battery-test/page-8 (see posting 142 and 148) With a 3rd-party replacement, labeled "Li-Ion". What type is yours? OEM? Link to post Share on other sites More sharing options...
Roberto Watson Posted July 23, 2017 Share #23 Posted July 23, 2017 Mine are all Leica brand bought at B&H during the last four years Link to post Share on other sites More sharing options...
jaapv Posted July 24, 2017 Share #24 Posted July 24, 2017 Still obviously needed a calibration of the battery level indicator. Link to post Share on other sites More sharing options...
pico Posted July 24, 2017 Share #25 Posted July 24, 2017 Still obviously needed a calibration of the battery level indicator. Where is the battery level indicator? In the battery, camera, firmware? Link to post Share on other sites More sharing options...
martin0reg Posted July 25, 2017 Share #26 Posted July 25, 2017 The indicator is in the camera ("info" button), but it can only indicate what the battery "reports", I think. And some batteries seem to report "low" even just after charging, I had to shoot around 100x with the "false low" battery, until suddenly the level displayed on the camera jumped to almost full. Now I hope the displayed level of this battery will be correct after some normal shootings and charging cycles 1 Link to post Share on other sites More sharing options...
jdlaing Posted July 25, 2017 Share #27 Posted July 25, 2017 Advertisement (gone after registration) Where is the battery level indicator? In the battery, camera, firmware? Yes. Link to post Share on other sites More sharing options...
Roberto Watson Posted February 26, 2018 Share #28 Posted February 26, 2018 Battery has not given any trouble charging up to date. I read in Leica M9 by David Tyler, some full drain after 20+ recharges is good for the battery, although jaapv recommended not to Any new thoughts about this Link to post Share on other sites More sharing options...
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