eritho Posted April 17, 2011 Share #61 Posted April 17, 2011 Advertisement (gone after registration) What is it about the human race that makes us capable of spending $7000 on a camera and then getting a stiffy over saving $100 bucks on a battery Common sense Quote Link to post Share on other sites More sharing options...
Advertisement Posted April 17, 2011 Posted April 17, 2011 Hi eritho, Take a look here Non-Leica M9 Battery Test. I'm sure you'll find what you were looking for!
Washington Posted April 17, 2011 Author Share #62 Posted April 17, 2011 Oh, jappv, Another interesting think about Chinese industry is that unlike what we did during the*'’industrial revolution’’ they came up with the idea to build new factories out in the rural areas near the work force rather than have all the people from the farms move to the city. Pretty smart…. think of all the crowding that solves. Quote Link to post Share on other sites More sharing options...
Washington Posted April 17, 2011 Author Share #63 Posted April 17, 2011 Good news (maybe) With that 3.7 volt flashlight bulb -pictured above- I slowly discharged the battery keeping a careful eye on the voltage. I did not want to go under 2.5 volts which would shut the battery down. I dropped it to about 2.8 volts ….. this is lower than it can go in the camera as the camera shuts down at a higher voltage than this. In fact I put it in the camera and as I suspected, the camera didn’t even turn on. I recharged it normally in the Leica charger and now it shows 100% in the camera again! Now, what this means, I duuno, but that’s what I did. Quote Link to post Share on other sites More sharing options...
Washington Posted April 17, 2011 Author Share #64 Posted April 17, 2011 Ok, the thing to do now is run this battery down by using the camera until the camera demands low-battery shut-down. Then measure the battery voltage at that point. Quote Link to post Share on other sites More sharing options...
Washington Posted April 20, 2011 Author Share #65 Posted April 20, 2011 Sorry, no news yet as I am still waiting for the ‘’off-brand’’ battery which now shows proper in camera charge to run down. The weather has been lousy and I’m not going out and take a bunch of junk photos just to get the camera to the point of shut down so I can measure the battery to discover at what voltage the battery shuts down the M-9. Maybe today will be nice! Quote Link to post Share on other sites More sharing options...
haroldp Posted April 20, 2011 Share #66 Posted April 20, 2011 Oh, jappv, Another interesting think about Chinese industry is that unlike what we did during the*'’industrial revolution’’ they came up with the idea to build new factories out in the rural areas near the work force rather than have all the people from the farms move to the city. Pretty smart…. think of all the crowding that solves. Then the factory sites concentrate for infrastructure like roads and power grids and become the new 'cities'. Think Detroit, Chicago, Denver etc. Cheers .... H Quote Link to post Share on other sites More sharing options...
Washington Posted April 20, 2011 Author Share #67 Posted April 20, 2011 Advertisement (gone after registration) It may very well be. But, the cities you mention didn’t become industrial centers because of work-force location…. but accessibility to raw materials and transportation. Quote Link to post Share on other sites More sharing options...
pico Posted April 20, 2011 Share #68 Posted April 20, 2011 Sorry, no news yet as I am still waiting for the ‘’off-brand’’ battery which now showsproper in camera charge to run down. Do some full-formats on a 16Gb card. That will pull the battery down pretty quickly. Quote Link to post Share on other sites More sharing options...
Washington Posted April 20, 2011 Author Share #69 Posted April 20, 2011 Thanks. I’m doing full size RAW’s but I could do Raw + JEPG I suppose. But, I’m surprised by the amount of ‘’juice’’ in this battery! Quote Link to post Share on other sites More sharing options...
Washington Posted April 24, 2011 Author Share #70 Posted April 24, 2011 Finally! Complete camera shut-down at a battery voltage of 3.2 volts. On the camera charge scale this showed about 10%. I started getting ‘’ low battery'’ warnings at about 20% on the camera scale. I just ignored them as I wanted to see where the bottom limit was for camera operation. This is not enough voltage drop to hurt a Li-ion battery at all. What does hurt these batteries is total discharge… like hooking it up to a bulb or something and doing a ''deep discharge'' which could repair a ni-cad with ‘’memory’’ problems: but NOT these. I have seen that taking this battery down to 2.8 volts somehow, on recharge, allows full function with the in camera scale. This recharge from the 3.2 volt camera bottom limit may do the same thing…. I hope! cheers. 2 Quote Link to post Share on other sites More sharing options...
fotoism Posted April 25, 2011 Share #71 Posted April 25, 2011 Thanks for taking the time to do this little experiment. I guess as long as you are using the battery in the camera till it refuses to go any further and not completely discharging it in a discharger you are okay. Quote Link to post Share on other sites More sharing options...
Washington Posted April 25, 2011 Author Share #72 Posted April 25, 2011 That’s just what I am finding out now. The battery can not be discharged below about 2.5 volts or the internal chip cuts off the charging circuit and the battery can not be recharged in a normal charger…. but can be reclaimed to normal using a charger with a low voltage ’’boost'’ feature. I restored the batteries ability to register proper charge in the camera scale by carefully reducing it’s voltage to 2.8 volts and using the Leica charger …. whether it will also do this from the 3.2 volt camera shut down voltage remains to be seen. 1 Quote Link to post Share on other sites More sharing options...
Washington Posted April 25, 2011 Author Share #73 Posted April 25, 2011 It worked! Ran the battery all the way down until camera shut down (3.2 volts) - Recharged it as usual in Leica charger, and the camera meter shows 100%… or, as Dr. Frankenstein would say: ‘’ It’s alive, it’s a ALIVE!!'' Quote Link to post Share on other sites More sharing options...
Washington Posted April 25, 2011 Author Share #74 Posted April 25, 2011 Oh, I ignored those in camera low battery warnings and used it until the camera stopped working. Quote Link to post Share on other sites More sharing options...
250swb Posted April 25, 2011 Share #75 Posted April 25, 2011 So all you need to do now is invent a little thing (I'm thinking a few wires and a widget and a gizmo) that will automatically run batteries down to just below 3.2v (or whatever) and then sell it to us at a price that means third party batteries are now a no brainer! Steve Quote Link to post Share on other sites More sharing options...
Bert N Posted April 25, 2011 Share #76 Posted April 25, 2011 Steve - You already have that gadget in the M8: If you disabled the auto shut-off mode and leave the camera on, it will completely discharge the battery overnight... Quote Link to post Share on other sites More sharing options...
250swb Posted April 25, 2011 Share #77 Posted April 25, 2011 But this is the M9 forum isn't it???? Yes, Leica spotted a way to screw things up with the M9, but even the M8 would benefit from being able to discharge a battery without rendering the camera unusable while doing so. Steve Quote Link to post Share on other sites More sharing options...
Washington Posted April 25, 2011 Author Share #78 Posted April 25, 2011 Well, let’s hang on a bit because this has been successful once on one particular battery…. so, I still want to check out a couple more third party batteries and see if this works with them. I could have just been lucky as well. Not enough data yet to form a positive conclusion. Come to think of it Sherlock Holmes had adage similar to this. Quote Link to post Share on other sites More sharing options...
Washington Posted April 25, 2011 Author Share #79 Posted April 25, 2011 BertN, What you say is true…. but, from what I have observed is the camera shuts down at 3.2 volts. For all I know right now it MAY (?) have been my light bulb drain to 2.8 volts that did the trick. I can’t assume anything at this point. Cheers! Quote Link to post Share on other sites More sharing options...
lct Posted April 25, 2011 Share #80 Posted April 25, 2011 It worked! Ran the battery all the way down until camera shut down... Recharged it as usual in Leica charger, and the camera meter shows 100%… Same with my Oege-Energy batteries with Leica and Delkin chargers: Original Oege akku Leica 1 Quote Link to post Share on other sites More sharing options...
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