Archived posting to the Leica Users Group, 2008/02/13

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Subject: [Leica] M8 batteries after 1.201 firmware
From: scheng at aotera.org (Spencer Cheng)
Date: Wed Feb 13 13:09:40 2008
References: <BAY101-W104C020AE444F4D4286198BE2A0@phx.gbl> <200802121745.ALT32793@rg5.comporium.net>
 
Lithium ion batteries is only good for about 300 deep discharge cycle  
before their capacities suffer significantly. Try not to discharge  
those expensive Li-ion battery packs completely before recharging  
them. These modern batteries do not like to be left in a deep  
discharged state for an extended period of time.

This applies equally to laptop, cellphone and camera battery packs.

/sc

On Feb 12, 2008, at 12:45, Tina Manley wrote:
> Neil - Mine are doing fine.  In fact, they are outlasting the Canon  
> 5D batteries on this trip.  Something has happened with the Canon  
> charger and the batteries last about 15 minutes before expiring.   
> Leica ones - even the 8 cheap Asian ones I have - are holding a  
> charge for a full day or more.  I did upgrade to 1.201, too.
>
In reply to: Message from plus_4 at hotmail.com (Neil Miller) ([Leica] M8 batteries after 1.201 firmware)
Message from images at comporium.net (Tina Manley) ([Leica] M8 batteries after 1.201 firmware)